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Core/clad phosphate glass fibres containing iron and/or titanium

Ahmed, Ifty; Shahruddin, Sharifah; Sharmin, Nusrat; Furniss, David; Rudd, Chris D.

Authors

Sharifah Shahruddin

Nusrat Sharmin

Chris D. Rudd



Abstract

Phosphate glasses are novel amorphous biomaterials due to their fully resorbable characteristics, with controllable degradation profiles. In this study, phosphate glasses containing titanium and/or iron were identified to exhibit sufficiently matched thermal properties (glass transition temperature, thermal expansion coefficient and viscosity) which enabled successful co-extrusion of glass billets to form a core/clad preform. The cladding composition for the core/clad preforms were also reversed. Fe clad and Ti clad fibres were successfully drawn with an average diameter of between 30~50 μm. The average cladding annular thickness was estimated to be less than 2 μm. Annealed core/clad fibres were degraded in PBS for a period of 27 days. The strength of the Fe clad fibres appeared to increase from 303 ± 73 MPa to 386 ± 45 MPa after nearly 2 weeks in the dissolution medium (phosphate buffered solution) before decreasing by day 27. The strength of the Ti clad fibres revealed an increase from 236 ± 53 MPa to 295 ± 61 MPa when compared at week 3. The tensile modulus measured for both core/clad fibres ranged between 51 GPa to 60 GPa. During the dissolution study, Fe clad fibres showed a peeling mechanism compared to the Ti clad fibres.

Citation

Ahmed, I., Shahruddin, S., Sharmin, N., Furniss, D., & Rudd, C. D. (2015). Core/clad phosphate glass fibres containing iron and/or titanium. Biomedical Glasses, 1(1), https://doi.org/10.1515/bglass-2015-0004

Journal Article Type Article
Acceptance Date May 16, 2015
Publication Date Jul 20, 2015
Deposit Date Aug 23, 2017
Publicly Available Date Aug 23, 2017
Journal Biomedical Glasses
Electronic ISSN 2299-3932
Peer Reviewed Peer Reviewed
Volume 1
Issue 1
DOI https://doi.org/10.1515/bglass-2015-0004
Public URL http://eprints.nottingham.ac.uk/id/eprint/45107
Publisher URL https://www.degruyter.com/view/j/bglass.2015.1.issue-1/bglass-2015-0004/bglass-2015-0004.xml
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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