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Self healing ability and strength recovery of different laminated Al2O3 cutting tool composites

Sun, Junlong; Liu, Changxia; Zhang, Rui; Hussain, Tanvir

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Authors

Junlong Sun

Changxia Liu

Rui Zhang

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TANVIR HUSSAIN TANVIR.HUSSAIN@NOTTINGHAM.AC.UK
Professor of Coatings and Surface Engineering



Abstract

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. For determining which laminated structure and the healing condition was the best for the composite, the flexural strength and recovery rates were measured and different healing condition were used. XRD, EDS and SEM technology were carried out to identify their compositions and microstructures after the healing. The number of cracks filled with TiO2, crack size and the oxide content effect were utilized to explain why the flexural strength and recovery rates of laminated Al2O3 cutting tool composite after the healing were different. A single particle model was utilized to identify the relation between the threshold time, grain size and the self healing temperature of the composites.

Citation

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

Journal Article Type Article
Acceptance Date May 14, 2020
Online Publication Date May 20, 2020
Publication Date Aug 15, 2020
Deposit Date Jun 25, 2020
Publicly Available Date Mar 29, 2024
Journal Ceramics International
Print ISSN 0272-8842
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 46
Issue 12
Pages 20463-20471
DOI https://doi.org/10.1016/j.ceramint.2020.05.145
Keywords Process Chemistry and Technology; Materials Chemistry; Electronic, Optical and Magnetic Materials; Surfaces, Coatings and Films; Ceramics and Composites
Public URL https://nottingham-repository.worktribe.com/output/4709530
Publisher URL https://www.sciencedirect.com/science/article/pii/S0272884220314346
Additional Information This article is maintained by: Elsevier; Article Title: Self healing ability and strength recovery of different laminated Al2O3 cutting tool composites; Journal Title: Ceramics International; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ceramint.2020.05.145; Content Type: article; Copyright: © 2020 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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