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Thermal properties and calcium-magnesium-alumino-silicate (CMAS) interaction of novel γ-phase ytterbium-doped yttrium disilicate (γ-Y1.5Yb0.5Si2O7) environmental barrier coating material (2024)
Journal Article
Zhang, B., Zhang, H., Bai, M., Du, A., Owusu, E. B., B. Owusu, E. B., …Hussain, T. (2024). Thermal properties and calcium-magnesium-alumino-silicate (CMAS) interaction of novel γ-phase ytterbium-doped yttrium disilicate (γ-Y1.5Yb0.5Si2O7) environmental barrier coating material. Advanced Composites and Hybrid Materials, 7(2), Article 64. https://doi.org/10.1007/s42114-024-00879-6

Rare-earth disilicates are promising candidates for thermal and environmental barrier coatings (TEBC) in gas turbines that safeguard SiCf/SiC ceramic matrix composites (CMCs) from thermal degradation and environmental attacks. Here, we report a syste... Read More about Thermal properties and calcium-magnesium-alumino-silicate (CMAS) interaction of novel γ-phase ytterbium-doped yttrium disilicate (γ-Y1.5Yb0.5Si2O7) environmental barrier coating material.

Alumina/GNPs coating on textured WC/Co substrate: microstructure and tribology (2024)
Journal Article
Sun, J., Liu, C., Venturi, F., Romero, A. R., & Hussain, T. (2024). Alumina/GNPs coating on textured WC/Co substrate: microstructure and tribology. Materials Science and Technology, 40(10), 782-798. https://doi.org/10.1177/02670836231223800

This work aims to provide a method for improving the tribological properties of WC/Co substrates. Laser surface texturing technology was employed to fabricate micro-grooves on the substrate surfaces. Suspension high velocity oxy fuel thermal spraying... Read More about Alumina/GNPs coating on textured WC/Co substrate: microstructure and tribology.

Multilayer GZ/YSZ thermal barrier coating from suspension and solution precursor plasma spray (2023)
Journal Article
Leng, K., Romero, A. R., Curry, N., & Hussain, T. (2024). Multilayer GZ/YSZ thermal barrier coating from suspension and solution precursor plasma spray. Ceramics International, 50(1, Part A), 631-649. https://doi.org/10.1016/j.ceramint.2023.10.142

Gas turbines rely on thermal barrier coating (TBC) to thermally insulate the nickel-based superalloys underneath during operation; however, current TBCs, yttria stabilised zirconia (YSZ), limit the operating temperature and hence efficiency. At an op... Read More about Multilayer GZ/YSZ thermal barrier coating from suspension and solution precursor plasma spray.

Microstructural Study of Cold-Sprayed CoCrFeNiMn High Entropy Alloy (2023)
Journal Article
Akisin, C. J., Dovgyy, B., Bennett, C. J., Pham, M. S., Venturi, F., & Hussain, T. (2023). Microstructural Study of Cold-Sprayed CoCrFeNiMn High Entropy Alloy. Journal of Thermal Spray Technology, 32, 2539–2562. https://doi.org/10.1007/s11666-023-01646-7

The rapid development of cold spraying technology for additive manufacturing of engineering components has made it a viable option for developing thick deposits from high-entropy alloys (HEAs). The microstructure of cold-sprayed CoCrFeNiMn deposit wa... Read More about Microstructural Study of Cold-Sprayed CoCrFeNiMn High Entropy Alloy.

SiC/YAG composite coatings by a novel liquid fuelled high velocity oxy-fuel suspension thermal spray (2023)
Journal Article
Venturi, F., Rincon Romero, A., & Hussain, T. (2023). SiC/YAG composite coatings by a novel liquid fuelled high velocity oxy-fuel suspension thermal spray. Surface and Coatings Technology, 471, Article 129865. https://doi.org/10.1016/j.surfcoat.2023.129865

Despite recent advances in suspension-based thermal spray techniques, there is still a need to widen the capability of available thermal spray setups to handle suspension to explore new compositions and improve the properties and performance of exist... Read More about SiC/YAG composite coatings by a novel liquid fuelled high velocity oxy-fuel suspension thermal spray.

Multilayer GZ/YSZ thermal barrier coating from suspension and solution precursor thermal spray (2023)
Journal Article
Leng, K., Rincon Romero, A., & Hussain, T. (2023). Multilayer GZ/YSZ thermal barrier coating from suspension and solution precursor thermal spray. Journal of the European Ceramic Society, 43(11), 4991-5003. https://doi.org/10.1016/j.jeurceramsoc.2023.04.014

Rare-earth (RE) zirconates, such as gadolinium zirconate (GZ), gained much attraction to be used for the next generation TBC. A double-layer and triple-layer TBC were deposited using the suspension and solution precursor high velocity oxy fuel (HVOF)... Read More about Multilayer GZ/YSZ thermal barrier coating from suspension and solution precursor thermal spray.

Atmospheric plasma spraying of ytterbium disilicate for abradable and environmental barrier coatings: A story of processing-microstructure relationships (2023)
Journal Article
Lynam, A., Rincon Romero, A., Xu, F., Brewster, G., Pattinson, G., & Hussain, T. (2023). Atmospheric plasma spraying of ytterbium disilicate for abradable and environmental barrier coatings: A story of processing-microstructure relationships. Ceramics International, 49(13), 22232-22243. https://doi.org/10.1016/j.ceramint.2023.04.053

Environmental barrier coatings (EBCs) are required to protect SiC based composites in high temperature, steam containing combustion environments found in the latest generation of high efficiency gas turbine aeroengines. Ytterbium disilicate (YbDS) ha... Read More about Atmospheric plasma spraying of ytterbium disilicate for abradable and environmental barrier coatings: A story of processing-microstructure relationships.

Steam Degradation of Ytterbium Disilicate Environmental Barrier Coatings: Effect of Composition, Microstructure and Temperature (2022)
Journal Article
Tejero-Martin, D., Bai, M., Rincon Romero, A., Wellman, R. G., & Hussain, T. (2023). Steam Degradation of Ytterbium Disilicate Environmental Barrier Coatings: Effect of Composition, Microstructure and Temperature. Journal of Thermal Spray Technology, 32(1), 29-45. https://doi.org/10.1007/s11666-022-01473-2

Recession of environmental barrier coatings (EBC) in environments containing steam is a pressing concern that requires further research before their implementation in gas turbine engines can be realized. In this work, free-standing plasma-sprayed Yb2... Read More about Steam Degradation of Ytterbium Disilicate Environmental Barrier Coatings: Effect of Composition, Microstructure and Temperature.

Correction to: Thermal Spraying of Ultra-High Temperature Ceramics: A Review on Processing Routes and Performance (2022)
Journal Article
Lynam, A., Romero, A. R., Xu, F., Wellman, R. G., & Hussain, T. (2022). Correction to: Thermal Spraying of Ultra-High Temperature Ceramics: A Review on Processing Routes and Performance. Journal of Thermal Spray Technology, 31(6), 2001-2001. https://doi.org/10.1007/s11666-022-01411-2

When originally published, the author list contained an incorrect initial for the fourth listed author. The name should have been published to read: R. G. Wellman. The original article has been corrected.

Numerical and Experimental Analysis of the Deformation Behavior of CoCrFeNiMn High Entropy Alloy Particles onto Various Substrates During Cold Spraying (2022)
Journal Article
Akisin, C. J., Bennett, C. J., Venturi, F., Assadi, H., & Hussain, T. (2022). Numerical and Experimental Analysis of the Deformation Behavior of CoCrFeNiMn High Entropy Alloy Particles onto Various Substrates During Cold Spraying. Journal of Thermal Spray Technology, 31(4), 1085-1111. https://doi.org/10.1007/s11666-022-01377-1

The bonding mechanisms of a wide range of metallic materials in cold spraying have been studied, mainly attributed to adiabatic shear instability (ASI) at high strain rates, whereas the impact and deformation behavior of high entropy alloys (HEAs) on... Read More about Numerical and Experimental Analysis of the Deformation Behavior of CoCrFeNiMn High Entropy Alloy Particles onto Various Substrates During Cold Spraying.

Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges (2022)
Journal Article
Faisal, N. H., Ahmed, R., Sellami, N., Prathuru, A., Njuguna, J., Venturi, F., …Kamnis, S. (2022). Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges. Advanced Engineering Materials, 24(7), Article 2200171. https://doi.org/10.1002/adem.202200171

This review aims to consolidate scattered literature on thermally sprayed coatings with nonionizing electromagnetic (EM) wave absorption and shielding over specific wavelengths potentially useful in diverse applications (e.g., microwave to millimeter... Read More about Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges.

High temperature (900 °C) sliding wear of CrNiAlCY coatings deposited by high velocity oxy fuel thermal spray (2022)
Journal Article
Derelizade, K., Rincon, A., Venturi, F., Wellman, R. G., Kholobystov, A., & Hussain, T. (2022). High temperature (900 °C) sliding wear of CrNiAlCY coatings deposited by high velocity oxy fuel thermal spray. Surface and Coatings Technology, 432, Article 128063. https://doi.org/10.1016/j.surfcoat.2021.128063

Nickel based superalloy are in demand for high temperature applications and their corrosion, erosion and wear resistance have been investigated for a long time. Nickel chromium (NiCr) alloys are widely used for corrosion resistant coatings, while chr... Read More about High temperature (900 °C) sliding wear of CrNiAlCY coatings deposited by high velocity oxy fuel thermal spray.

Interaction of CMAS on thermal sprayed ytterbium disilicate environmental barrier coatings: A story of porosity (2021)
Journal Article
Tejero-Martin, D., Romero, A. R., Wellman, R. G., & Hussain, T. (2022). Interaction of CMAS on thermal sprayed ytterbium disilicate environmental barrier coatings: A story of porosity. Ceramics International, 48(6), 8286-8296. https://doi.org/10.1016/j.ceramint.2021.12.033

Molten calcium magnesium alumina-silicates (CMAS) represent a challenge for the current generation of rare earth silicates environmental barrier coatings (EBCs). Their interaction with ytterbium disilicate (Yb2Si2O7) free-standing coatings deposited... Read More about Interaction of CMAS on thermal sprayed ytterbium disilicate environmental barrier coatings: A story of porosity.

Solution precursor thermal spraying of gadolinium zirconate for thermal barrier coating (2021)
Journal Article
Leng, K., Rincon Romero, A., Venturi, F., Ahmed, I., & Hussain, T. (2022). Solution precursor thermal spraying of gadolinium zirconate for thermal barrier coating. Journal of the European Ceramic Society, 42(4), 1594-1607. https://doi.org/10.1016/j.jeurceramsoc.2021.11.050

Gadolinium zirconate (GZ) is an attractive material for thermal barrier coatings (TBCs). However, a single layer GZ coating has poor thermal cycling life compared to Yttria Stabilized Zirconia (YSZ). In this study, Solution Precursor High Velocity Ox... Read More about Solution precursor thermal spraying of gadolinium zirconate for thermal barrier coating.

A convolution-based approach to cold spray additive manufacturing (2021)
Journal Article
Venturi, F., Gilfillan, N., & Hussain, T. (2021). A convolution-based approach to cold spray additive manufacturing. Additive Manufacturing, 1, Article 100014. https://doi.org/10.1016/j.addlet.2021.100014

Cold Spray Additive Manufacturing (CSAM) is a well-established technology that has recently attracted interest for forming 3D shapes in a fast and scalable fashion. Nonetheless, the resulting surface of cold sprayed parts normally requires post-depos... Read More about A convolution-based approach to cold spray additive manufacturing.

Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Process (2021)
Journal Article
Bano, S., Rincon Romero, A., Islam, M. T., Grant, D. M., Ahmed, I., & Hussain, T. (2021). Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Process. Journal of Thermal Spray Technology, 30(7), 1862-1874. https://doi.org/10.1007/s11666-021-01233-8

Phosphate based glasses (PBGs) are promising materials for biomedical applications due to their biocompatible and fully resorbable characteristics in aqueous environments. These glasses can be coated on to metal substrate via the technique of suspens... Read More about Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Process.

Wear performance of graphene nano platelets incorporated WC-Co coatings deposited by hybrid high velocity oxy fuel thermal spray (2021)
Journal Article
Derelizade, K., Venturi, F., Wellman, R. G., Kholobysov, A., & Hussain, T. (2021). Wear performance of graphene nano platelets incorporated WC-Co coatings deposited by hybrid high velocity oxy fuel thermal spray. Wear, 482-483, Article 203974. https://doi.org/10.1016/j.wear.2021.203974

WC-Co coatings have been used as wear resistant coatings in aero engines for decades, and research is still ongoing to further improve the performance of these coatings through compositional modifications to reduce wear. The coatings are used for unl... Read More about Wear performance of graphene nano platelets incorporated WC-Co coatings deposited by hybrid high velocity oxy fuel thermal spray.

YAG thermal barrier coatings deposited by suspension and solution precursor thermal spray (2021)
Journal Article
Owoseni, T. A., Rincon Romero, A., Pala, Z., Venturi, F., Lester, E. H., Grant, D. M., & Hussain, T. (2021). YAG thermal barrier coatings deposited by suspension and solution precursor thermal spray. Ceramics International, 47(17), 23803-23813. https://doi.org/10.1016/j.ceramint.2021.05.087

Yttrium aluminium garnet (YAG) is a promising topcoat material for thermal barrier coatings due to its high temperature stability and better CMAS (calcium-magnesium-alumino-silicate) resistance. YAG topcoats were deposited by suspension and solution... Read More about YAG thermal barrier coatings deposited by suspension and solution precursor thermal spray.

Evolution of Porosity in Suspension Thermal Sprayed YSZ Thermal Barrier Coatings through Neutron Scattering and Image Analysis Techniques (2021)
Journal Article
Tejero-Martin, D., Bai, M., Mata, J., & Hussain, T. (2021). Evolution of Porosity in Suspension Thermal Sprayed YSZ Thermal Barrier Coatings through Neutron Scattering and Image Analysis Techniques. Journal of the European Ceramic Society, 41(12), 6035-6048. https://doi.org/10.1016/j.jeurceramsoc.2021.04.020

Porosity is a key parameter on thermal barrier coatings, directly influencing thermal conductivity and strain tolerance. Suspension high velocity oxy-fuel (SHVOF) thermal spraying enables the use of sub-micron particles, increasing control over poros... Read More about Evolution of Porosity in Suspension Thermal Sprayed YSZ Thermal Barrier Coatings through Neutron Scattering and Image Analysis Techniques.

Nanomechanical Characterization of the Deformation Response of Orthotropic Ti–6Al–4V (2021)
Journal Article
Rojas-Ulloa, C., Bouffioux, C., Jaramillo, A. F., García-Herrera, C. M., Hussain, T., Duchêne, L., …Tuninetti, V. (2021). Nanomechanical Characterization of the Deformation Response of Orthotropic Ti–6Al–4V. Advanced Engineering Materials, 23(7), Article 2001341. https://doi.org/10.1002/adem.202001341

The nanoindentation‐induced mechanical deformation response is applied to identify the orthotropic elastic moduli using the Delafargue and Ulm method as well as to validate the asymmetric orthotropic CPB06 nonlinear plasticity model required in simul... Read More about Nanomechanical Characterization of the Deformation Response of Orthotropic Ti–6Al–4V.

Fracture behaviour, microstructure, and performance of various layered-structured Al2O3-TiC-WC-Co composites (2021)
Journal Article
Liu, C., Sun, J., Wang, C., Li, F., & Hussain, T. (2021). Fracture behaviour, microstructure, and performance of various layered-structured Al2O3-TiC-WC-Co composites. Ceramics International, 47(14), 19766-19773. https://doi.org/10.1016/j.ceramint.2021.03.315

In this study, layered-structured Al2O3-based composites containing WC-Co, TiC, and MgO additives were prepared using hot-pressing sintering. The best comprehensive mechanical characteristics were acquired for the sample with a layer number (NLN) of... Read More about Fracture behaviour, microstructure, and performance of various layered-structured Al2O3-TiC-WC-Co composites.

Internal diameter HVOAF thermal spray of carbon nanotubes reinforced WC-Co composite coatings (2021)
Journal Article
Venturi, F., Kamnis, S., & Hussain, T. (2021). Internal diameter HVOAF thermal spray of carbon nanotubes reinforced WC-Co composite coatings. Materials and Design, 202, Article 109566. https://doi.org/10.1016/j.matdes.2021.109566

© 2021 The Authors A novel process, relatively fast and scalable compared to existing ones, has been used to incorporate carbon nanotubes (CNT) 0.5 wt% onto commercial WC-Co thermal spray powder. Nano enabled WC-Co/CNT coatings were obtained by inter... Read More about Internal diameter HVOAF thermal spray of carbon nanotubes reinforced WC-Co composite coatings.

In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray (2020)
Journal Article
Bano, S., Romero, A. R., Grant, D., Nommeots-Nomm, A., Scotchford, C., Ahmed, I., & Hussain, T. (2021). In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray. Surface and Coatings Technology, 407, Article 126764. https://doi.org/10.1016/j.surfcoat.2020.126764

ICIE16 and 13-93 bioactive glasses have been proposed as alternative chemically stable compositions in physiological fluid keeping bioactivity comparable to Bioglass®. ICIE16 and 13-93 bioactive glasses coatings were produced via an emerging suspensi... Read More about In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray.

A review on environmental barrier coatings: History, current state of the art and future developments (2020)
Journal Article
Tejero-Martin, D., Bennett, C., & Hussain, T. (2021). A review on environmental barrier coatings: History, current state of the art and future developments. Journal of the European Ceramic Society, 41(3), 1747-1768. https://doi.org/10.1016/j.jeurceramsoc.2020.10.057

© 2020 The Authors The increasing demand for more efficient and environmental-friendly gas turbines has driven the development of new strategies for material development. SiC/SiC ceramic matrix composites (CMCs) can fulfil the stringent requirements;... Read More about A review on environmental barrier coatings: History, current state of the art and future developments.

Microstructure and wear performance of alumina/graphene coating on textured Al2O3/TiC substrate composites (2020)
Journal Article
Liu, C., Sun, J., Venturi, F., Romero, A. R., & Hussain, T. (2021). Microstructure and wear performance of alumina/graphene coating on textured Al2O3/TiC substrate composites. Journal of the European Ceramic Society, 41(2), 1438-1451. https://doi.org/10.1016/j.jeurceramsoc.2020.09.063

The incorporation of graphene-based nanodispersoids in ceramic coatings is known to enhance the wear behavior of these materials. In this study, for the first time, alumina/graphene nanoplatelets (GNPs) coatings were deposited through Suspension High... Read More about Microstructure and wear performance of alumina/graphene coating on textured Al2O3/TiC substrate composites.

A high-fidelity simulation of the primary breakup within suspension high velocity oxy fuel thermal spray using a coupled volume of fluid and discrete phase model (2020)
Journal Article
Chadha, S., Jefferson-Loveday, R., & Hussain, T. (2020). A high-fidelity simulation of the primary breakup within suspension high velocity oxy fuel thermal spray using a coupled volume of fluid and discrete phase model. International Journal of Multiphase Flow, 133, Article 103445. https://doi.org/10.1016/j.ijmultiphaseflow.2020.103445

Residual Stress Measurement of Suspension HVOF-Sprayed Alumina Coating via a Hole-Drilling Method (2020)
Journal Article
Owoseni, T. A., Bai, M., Curry, N., Lester, E. H., Grant, D. M., & Hussain, T. (2020). Residual Stress Measurement of Suspension HVOF-Sprayed Alumina Coating via a Hole-Drilling Method. Journal of Thermal Spray Technology, 29(6), 1339–1350. https://doi.org/10.1007/s11666-020-01072-z

The nature and magnitude of residual stresses in thermal-sprayed coatings determine their lifetime and failure mechanisms. The residual stresses of suspension high-velocity oxy-fuel (SHVOF) thermal sprayed alumina (Al2O3) coating were measured with h... Read More about Residual Stress Measurement of Suspension HVOF-Sprayed Alumina Coating via a Hole-Drilling Method.

A novel approach to incorporate graphene nanoplatelets to Cr2O3 for low-wear coatings (2020)
Journal Article
Venturi, F., Pulsford, J., & Hussain, T. (2020). A novel approach to incorporate graphene nanoplatelets to Cr2O3 for low-wear coatings. Materials Letters, 276, Article 128283. https://doi.org/10.1016/j.matlet.2020.128283

© 2020 Cr2O3 (chromia) coatings have been widely used in wear and corrosion resistant applications thanks to their good tribomechanical properties, and graphene nanoplatelets (GNPs) have been employed as nanofillers to further improve these propertie... Read More about A novel approach to incorporate graphene nanoplatelets to Cr2O3 for low-wear coatings.

Structural changes of thermal sprayed graphene nano platelets film into amorphous carbon under sliding wear (2020)
Journal Article
Derelizade, K., Venturi, F., Wellman, R. G., Khlobystov, A., & Hussain, T. (2020). Structural changes of thermal sprayed graphene nano platelets film into amorphous carbon under sliding wear. Applied Surface Science, 528, Article 146315. https://doi.org/10.1016/j.apsusc.2020.146315

© 2020 The Authors Graphene has become a promising candidate to protect surfaces against friction due to its strength and lubricating ability. In this study, graphene nano platelets (GNP) thin films have been deposited onto stainless steel substrates... Read More about Structural changes of thermal sprayed graphene nano platelets film into amorphous carbon under sliding wear.

Resilient and Agile Engineering Solutions to Address Societal Challenges such as Coronavirus Pandemic (2020)
Journal Article
Goel, S., Hawi, S., Goel, G., Thakur, V. K., Pearce, O., Hoskins, C., …Barber, A. H. (2020). Resilient and Agile Engineering Solutions to Address Societal Challenges such as Coronavirus Pandemic. Materials Today Chemistry, 17, Article 100300. https://doi.org/10.1016/j.mtchem.2020.100300

The world is witnessing tumultuous times as major economic powers including the US, UK, Russia, India, and most of Europe continue to be in a state of lockdown. The worst-hit sectors due to this lockdown are sales, production (manufacturing), transpo... Read More about Resilient and Agile Engineering Solutions to Address Societal Challenges such as Coronavirus Pandemic.

Self healing ability and strength recovery of different laminated Al2O3 cutting tool composites (2020)
Journal Article
Sun, J., Liu, C., Zhang, R., & Hussain, T. (2020). Self healing ability and strength recovery of different laminated Al2O3 cutting tool composites. Ceramics International, 46(12), 20463-20471. https://doi.org/10.1016/j.ceramint.2020.05.145

The lifetime of ceramic tool is decreased because of the extension of cracks, and it will be prolonged if the cracks can be self healed. The healing ability of laminated Al2O3 cutting tool composites (Al2O3-(WC-Co)-MgO/Al2O3–TiC–MgO) were assessed. F... Read More about Self healing ability and strength recovery of different laminated Al2O3 cutting tool composites.

Microstructure of Cross-Linked High Densification Network and Strengthening Mechanism in Cold-Sprayed Ti-6Al-4V Coating After Heat Treatment (2020)
Journal Article
Zhou, H., Li, C., Luo, X., Yang, G., Hussain, T., & Li, C. (2020). Microstructure of Cross-Linked High Densification Network and Strengthening Mechanism in Cold-Sprayed Ti-6Al-4V Coating After Heat Treatment. Journal of Thermal Spray Technology, 29(5), 1054-1069. https://doi.org/10.1007/s11666-020-01042-5

In this study, Ti-6Al-4V (TC4) coating was prepared using an in situ shot peening-assisted cold spraying technology in which large shot peening particles were mixed with TC4 spraying powders to prepare the deposit. To improve its strength and toughne... Read More about Microstructure of Cross-Linked High Densification Network and Strengthening Mechanism in Cold-Sprayed Ti-6Al-4V Coating After Heat Treatment.

Sliding wear behaviour of WC-Co reinforced NiCrFeSiB HVOAF thermal spray coatings against WC-Co and Al2O3 counterbodies (2020)
Journal Article
Pulsford, J., Venturi, F., Kamnis, S., & Hussain, T. (2020). Sliding wear behaviour of WC-Co reinforced NiCrFeSiB HVOAF thermal spray coatings against WC-Co and Al2O3 counterbodies. Surface and Coatings Technology, 386, Article 125468. https://doi.org/10.1016/j.surfcoat.2020.125468

© 2020 The Authors NiCrFeSiB alloys reinforced with WC-Co are potentially useful composite coating materials for use in applications in which resistance to sliding wear, hot corrosion and high temperature is required. Furthermore these materials offe... Read More about Sliding wear behaviour of WC-Co reinforced NiCrFeSiB HVOAF thermal spray coatings against WC-Co and Al2O3 counterbodies.

Cold spray deposition of solution heat treated, artificially aged and naturally aged Al 7075 powder (2020)
Journal Article
Sabard, A., McNutt, P., Begg, H., & Hussain, T. (2020). Cold spray deposition of solution heat treated, artificially aged and naturally aged Al 7075 powder. Surface and Coatings Technology, 385, Article 125367. https://doi.org/10.1016/j.surfcoat.2020.125367

The deformation behaviour of particles and substrate in cold spray is dictated by the intrinsic properties of both materials, and their bonding directly affects the resulting properties of the deposited coating. The processing through heat treatment... Read More about Cold spray deposition of solution heat treated, artificially aged and naturally aged Al 7075 powder.

Radial Injection in Suspension High Velocity Oxy-Fuel (S-HVOF) Thermal Spray of Graphene Nanoplatelets for Tribology (2019)
Journal Article
Venturi, F., & Hussain, T. (2020). Radial Injection in Suspension High Velocity Oxy-Fuel (S-HVOF) Thermal Spray of Graphene Nanoplatelets for Tribology. Journal of Thermal Spray Technology, 29(1-2), 255–269. https://doi.org/10.1007/s11666-019-00957-y

Friction is a major issue in energy efficiency of any apparatus composed of moving mechanical parts, affecting durability and reliability. Graphene nanoplatelets (GNPs) are good candidates for reducing friction and wear, and suspension high velocity... Read More about Radial Injection in Suspension High Velocity Oxy-Fuel (S-HVOF) Thermal Spray of Graphene Nanoplatelets for Tribology.

Splat formation and microstructure of solution precursor thermal sprayed Nb-doped titanium oxide coatings (2019)
Journal Article
Tejero-Martin, D., Pala, Z., Rushworth, S., & Hussain, T. (2020). Splat formation and microstructure of solution precursor thermal sprayed Nb-doped titanium oxide coatings. Ceramics International, 46(4), 5098-5108. https://doi.org/10.1016/j.ceramint.2019.10.253

Solution precursor thermal spray can become a breakthrough technology for the deposition of coatings with novel chemistries; however, the understanding of the process that the feedstock material undergoes is still lacking when compared to more tradit... Read More about Splat formation and microstructure of solution precursor thermal sprayed Nb-doped titanium oxide coatings.

The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions (2019)
Journal Article
Karimi, G., Carrington, M., Thomas, J., Shipway, P., Stewart, D., & Hussain, T. (2019). The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions. Corrosion Science, 159, Article 108141. https://doi.org/10.1016/j.corsci.2019.108141

The corrosion behaviour of cast and HIPed Stellite 6 analogue materials in PWR-simulating conditions was investigated. The cast alloy exhibited localised corrosion at the boundary between the matrix and the M7C3 carbides, with this being attributed t... Read More about The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions.

Application of HVOF WC-Co-Cr coatings on the internal surface of small cylinders: Effect of internal diameter on the wear resistance (2019)
Journal Article
Pulsford, J., Venturi, F., Pala, Z., Kamnis, S., & Hussain, T. (2019). Application of HVOF WC-Co-Cr coatings on the internal surface of small cylinders: Effect of internal diameter on the wear resistance. Wear, 432-433, 1-10. https://doi.org/10.1016/j.wear.2019.202965

Due to the restrictions and mediocre performance of current methods of coating complex shaped parts in which line of sight processes currently struggle, the development of new coating methods is essential, with High Velocity Oxy-Fuel (HVOF) thermal s... Read More about Application of HVOF WC-Co-Cr coatings on the internal surface of small cylinders: Effect of internal diameter on the wear resistance.

Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion (2019)
Journal Article
Reddy, L., Sattari, M., Davis, C., Shipway, P., Halvarsson, M., & Hussain, T. (2019). Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion. Corrosion Science, 158, 1-10. https://doi.org/10.1016/j.corsci.2019.07.003

This study investigated the effects of HCl and KCl on a laser-clad FeCrAl coating at 450 °C in an in-situ ESEM followed by a furnace exposure. In all in-situ TEM cross-sections, three major phases were identified: an iron rich oxide, an iron-chromium... Read More about Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion.

Pores Structure Change Induced by Heat Treatment in Cold-Sprayed Ti6Al4V Coating (2019)
Journal Article
Zhou, H., Li, C., Yang, H., Luo, X., Yang, G., Li, W., …Li, C. (2019). Pores Structure Change Induced by Heat Treatment in Cold-Sprayed Ti6Al4V Coating. Journal of Thermal Spray Technology, 28(6), 1-13. https://doi.org/10.1007/s11666-019-00882-0

In this study, the evolution of pores structure in cold-sprayed Ti6Al4V coating (TC4) was analyzed before and after 600-1100 °C heat treatment. It was found that almost no change happened to pores under the heat treatment temperature below 600 °C. Wh... Read More about Pores Structure Change Induced by Heat Treatment in Cold-Sprayed Ti6Al4V Coating.

Inter-particle bonding in cold spray deposition of a gas-atomised and a solution heat-treated Al 6061 powder (2019)
Journal Article
Sabard, A., & Hussain, T. (2019). Inter-particle bonding in cold spray deposition of a gas-atomised and a solution heat-treated Al 6061 powder. Journal of Materials Science, 54(18), 12061-12078. https://doi.org/10.1007/s10853-019-03736-w

The heat treatment of a number of gas-atomised aluminium alloys prior to cold spraying recently showed that the resultant microstructural modification was accompanied by an improvement in deposition; however, the relationship between the microstructu... Read More about Inter-particle bonding in cold spray deposition of a gas-atomised and a solution heat-treated Al 6061 powder.

Effect of processing on microstructure, mechanical properties and dissolution behaviour in SBF of Bioglass (45S5) coatings deposited by Suspension High Velocity Oxy Fuel (SHVOF) thermal spray (2019)
Journal Article
Bano, S., Ahmed, I., Grant, D., Nommeots-Nomm, A., & Hussain, T. (2019). Effect of processing on microstructure, mechanical properties and dissolution behaviour in SBF of Bioglass (45S5) coatings deposited by Suspension High Velocity Oxy Fuel (SHVOF) thermal spray. Surface and Coatings Technology, 372, 229-238. https://doi.org/10.1016/j.surfcoat.2019.05.038

Beyond traditional coatings: a review on thermal-sprayed functional and smart coatings (2019)
Journal Article
Tejero-Martin, D., Rezvani Rad, M., McDonald, A., & Hussain, T. (2019). Beyond traditional coatings: a review on thermal-sprayed functional and smart coatings. Journal of Thermal Spray Technology, 28(4), 598–644. https://doi.org/10.1007/s11666-019-00857-1

Thermal spraying has been present for over a century, being greatly refined and optimized during this time. It has become nowadays a reliable and cost-efficient method to deposit thick coatings with a wide variety of feedstock materials and substrate... Read More about Beyond traditional coatings: a review on thermal-sprayed functional and smart coatings.

A low-friction graphene nanoplatelets film from suspension high velocity oxy-fuel thermal spray (2019)
Journal Article
Venturi, F., Rance, G. A., Thomas, J., & Hussain, T. (2019). A low-friction graphene nanoplatelets film from suspension high velocity oxy-fuel thermal spray. AIP Advances, 9(2), 025216. https://doi.org/10.1063/1.5089021

The addition of graphene-based nanomaterials is known to improve the tribology properties of materials by lowering the coefficient of friction and reducing wear. The covering of small areas with thin graphene-based films is routinely carried out; how... Read More about A low-friction graphene nanoplatelets film from suspension high velocity oxy-fuel thermal spray.

Corrosion of cast Stellite-3 analogue in simulated PWR conditions (2018)
Journal Article
Karimi, G., Shipway, P., Stewart, D., & Hussain, T. (2018). Corrosion of cast Stellite-3 analogue in simulated PWR conditions. Corrosion Science, 140, 402-411. https://doi.org/10.1016/j.corsci.2018.05.023

© 2018 Elsevier Ltd Wear resistant alloys are required for deployment in pressurised water reactor primary circuits and in this context, the corrosion behaviour of a cast cobalt-based alloy following exposure for 30 days in lithiated water at 300 °C... Read More about Corrosion of cast Stellite-3 analogue in simulated PWR conditions.

Process parameter optimisation of laser clad iron based alloy: Predictive models of deposition efficiency, porosity and dilution (2018)
Journal Article
Reddy, L., Preston, S. P., Shipway, P., Davis, C., & Hussain, T. (2018). Process parameter optimisation of laser clad iron based alloy: Predictive models of deposition efficiency, porosity and dilution. Surface and Coatings Technology, 349, 198-207. https://doi.org/10.1016/j.surfcoat.2018.05.054

As a candidate coating material for heat-exchanger surfaces in commercial power generation boiler, an amorphous/glass forming Fe-Cr-B alloy NanoSteel SHS 7170 was deposited by a 2 kW fibre laser onto a boiler grade steel substrate (15Mo3). A comprehe... Read More about Process parameter optimisation of laser clad iron based alloy: Predictive models of deposition efficiency, porosity and dilution.

Effect of SiO2 dispersion on chlorine-induced high temperature corrosion of HVAF-sprayed NiCrMo coating (2018)
Journal Article
Sadeghimeresht, E., Markocsan, N., Hussain, T., Huhtakangas, M., & Joshi, S. (2018). Effect of SiO2 dispersion on chlorine-induced high temperature corrosion of HVAF-sprayed NiCrMo coating. CORROSION, 74(9), 984-1000. https://doi.org/10.5006/2802

NiCrMo coatings with and without dispersed SiO2 were deposited using high velocity air-fuel (HVAF) technique. Thermogravimetric experiments were conducted in 5% O2+500 vppm HCl+N2 with and without a KCl deposit at 600 °C for up to 168 h. The SiO2-con... Read More about Effect of SiO2 dispersion on chlorine-induced high temperature corrosion of HVAF-sprayed NiCrMo coating.

Influence of KCl and HCl on high temperature corrosion of HVAF-sprayed NiCrAlY and NiCrMo coatings (2018)
Journal Article
Sadeghimeresht, E., Reddy, L., Hussain, T., Huhtakangas, M., Markocsan, N., & Joshi, S. (2018). Influence of KCl and HCl on high temperature corrosion of HVAF-sprayed NiCrAlY and NiCrMo coatings. Materials and Design, 148, https://doi.org/10.1016/j.matdes.2018.03.048

The oxidation performance of NiCrAlY and NiCrMo coatings thermally sprayed by high velocity air-fuel (HVAF) technique has been investigated in a chloridizing-oxidizing environment, with and without a KCl deposit, at 600 °C for up to 168 h. Both coati... Read More about Influence of KCl and HCl on high temperature corrosion of HVAF-sprayed NiCrAlY and NiCrMo coatings.

Chlorine-induced high temperature corrosion of HVAF-sprayed Ni-based alumina and chromia forming coatings (2017)
Journal Article
Sadeghimeresht, E., Reddy, L., Hussain, T., Markocsan, N., & Joshi, S. (2018). Chlorine-induced high temperature corrosion of HVAF-sprayed Ni-based alumina and chromia forming coatings. Corrosion Science, 132, https://doi.org/10.1016/j.corsci.2017.12.033

Chlorine-induced corrosion of HVAF-sprayed Ni21Cr and Ni5Al coatings was investigated in 5 vol.% O2 + 500vppm HCl + N2 with and without KCl at 600 °C up to 168 h. Both coatings were protective in the absence of KCl. With KCl, Ni21Cr degraded through... Read More about Chlorine-induced high temperature corrosion of HVAF-sprayed Ni-based alumina and chromia forming coatings.

Microstructural evolution in solution heat treatment of gas- atomised Al alloy (7075) powder for cold spray (2017)
Journal Article
Sabard, A., Lovelock, H. D. V., & Hussain, T. (in press). Microstructural evolution in solution heat treatment of gas- atomised Al alloy (7075) powder for cold spray. Journal of Thermal Spray Technology, https://doi.org/10.1007/s11666-017-0662-2

Cold gas dynamic spray is being explored as a repair technique for high-value metallic components, given its potential to produce pore and oxide-free deposits of between several micrometers and several millimeters thick with good levels of adhesion a... Read More about Microstructural evolution in solution heat treatment of gas- atomised Al alloy (7075) powder for cold spray.

HVOF and laser cladded Fe-Cr-B coating in simulated biomass combustion: microstructure and fireside corrosion (2017)
Journal Article
Reddy, L., Shipway, P., Davis, C., & Hussain, T. (in press). HVOF and laser cladded Fe-Cr-B coating in simulated biomass combustion: microstructure and fireside corrosion. Oxidation of Metals, https://doi.org/10.1007/s11085-017-9774-9

Biomass is often considered as a low carbon alternative to fossil fuels in the power industry. However the heat exchangers in biomass plants can suffer from chloride based aggressive fireside corrosion. A commercially available amorphous Fe-Cr-B allo... Read More about HVOF and laser cladded Fe-Cr-B coating in simulated biomass combustion: microstructure and fireside corrosion.

Fabrication and microstrain evolution of Al-TiB2 composite coating by cold spray deposition (2017)
Journal Article
Chen, H., Pala, Z., Hussain, T., & McCartney, D. (in press). Fabrication and microstrain evolution of Al-TiB2 composite coating by cold spray deposition. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, https://doi.org/10.1177/1464420717690559

This paper investigates the microstructure evolution of Al-TiB2 coatings prepared by cold spraying. In situ Al-TiB2 composite powders containing uniformly distributed titanium diboride (TiB2) particles with a size range of 5 to 100 nm in the Al matri... Read More about Fabrication and microstrain evolution of Al-TiB2 composite coating by cold spray deposition.

Advanced diamond-reinforced metal matrix composites via cold spray: properties and deposition mechanism (2017)
Journal Article
Yin, S., Xie, Y., Cizek, J., Ekoi, E., Hussain, T., Dowling, D., & Lupoi, R. (in press). Advanced diamond-reinforced metal matrix composites via cold spray: properties and deposition mechanism. Composites Part B: Engineering, 113, https://doi.org/10.1016/j.compositesb.2017.01.009

Diamond-reinforced metal matrix composites (DMMC) have great potential for wear-resistance applications due to the superior hardness of the diamond component. Cold spray as an emerging coating technique is able to fabricate coatings or bulk materials... Read More about Advanced diamond-reinforced metal matrix composites via cold spray: properties and deposition mechanism.

High-temperature performance of ferritic steels in fireside corrosion regimes: temperature and deposits (2016)
Journal Article
Dudziak, T., Hussain, T., & Simms, N. (in press). High-temperature performance of ferritic steels in fireside corrosion regimes: temperature and deposits. Journal of Materials Engineering and Performance, https://doi.org/10.1007/s11665-016-2423-7

The paper reports high temperature resistance of ferritic steels in fireside corrosion regime in terms of temperature and deposits aggressiveness. Four candidate power plant steels: 15Mo3, T22, T23 and T91 were exposed under simulated air-fired combu... Read More about High-temperature performance of ferritic steels in fireside corrosion regimes: temperature and deposits.

Gas and liquid-fuelled HVOF spraying of Ni50Cr coating: microstructure and high temperature oxidation (2016)
Journal Article
Song, B., Pala, Z., Voisey, K., & Hussain, T. (in press). Gas and liquid-fuelled HVOF spraying of Ni50Cr coating: microstructure and high temperature oxidation. Surface and Coatings Technology, https://doi.org/10.1016/j.surfcoat.2016.07.046

Ni50Cr thermally sprayed coatings are widely used for high temperature oxidation and corrosion in thermal power plants. In this study, a commercially available gas atomised Ni50Cr powder was sprayed onto a power plant alloy (ASME P92) using both gas... Read More about Gas and liquid-fuelled HVOF spraying of Ni50Cr coating: microstructure and high temperature oxidation.

A novel method for metal–diamond composite coating deposition with cold spray and formation mechanism (2016)
Journal Article
Aldwell, B., Yin, S., McDonnell, K. A., Trimble, D., Hussain, T., & Lupoi, R. (2016). A novel method for metal–diamond composite coating deposition with cold spray and formation mechanism. Scripta Materialia, 115, https://doi.org/10.1016/j.scriptamat.2015.12.028

This paper describes the application of cold spray to the deposition of a diamond grade pre-coated with Cu and Ni. This is the first time that pre-coated diamond powders are used as the sole feedstock without the addition of binders (ductile phases)... Read More about A novel method for metal–diamond composite coating deposition with cold spray and formation mechanism.

Laser cladding of Ni50Cr: A parametric and dilution study (2016)
Presentation / Conference Contribution
Song, B., Hussain, T., & Voisey, K. T. (2016). Laser cladding of Ni50Cr: A parametric and dilution study. . https://doi.org/10.1016/j.phpro.2016.08.072

© 2016 The Authors. The increasing use of biomass as a fuel is leading to higher fireside corrosion of the heat exchangers in boilers due to the high chlorine and alkali metal content in the fuel. Laser cladding of Ni50Cr is a promising technique to... Read More about Laser cladding of Ni50Cr: A parametric and dilution study.