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Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites
(1) Background: the applications of ceramic materials in a friction pair and a moving pair are limited, just because of their poor toughness and unsatisfactory tribological characteristics. In view of this, Mo as a soft metal layer was added into a Si(3)N(4) matrix to improve its toughness and tribo...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9029770/ https://www.ncbi.nlm.nih.gov/pubmed/35454464 http://dx.doi.org/10.3390/ma15082772 |
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author | Li, Huaqiang Chen, Wei Zhao, Ziqiang Wang, Zhaoxun Zhang, Chen Gao, Jinghui Zhong, Lisheng |
author_facet | Li, Huaqiang Chen, Wei Zhao, Ziqiang Wang, Zhaoxun Zhang, Chen Gao, Jinghui Zhong, Lisheng |
author_sort | Li, Huaqiang |
collection | PubMed |
description | (1) Background: the applications of ceramic materials in a friction pair and a moving pair are limited, just because of their poor toughness and unsatisfactory tribological characteristics. In view of this, Mo as a soft metal layer was added into a Si(3)N(4) matrix to improve its toughness and tribological characteristics. (2) Methods: The microstructure and metal/ceramic transition layer were examined using X-ray diffraction, scanning electron microscope, electron dispersive X-ray spectroscopy, and Vickers hardness. Bending strength and fracture toughness were also measured. Tribological characteristics were obtained on the pin-on-disc wear tester. (3) Results: It can be found that the multilayer structure could improve the fracture toughness of laminated composite compared with single-phase Si(3)N(4), but the bending strength was significantly reduced. Through microstructure observation, the transition layer of Si(3)N(4)/Mo-laminated composite was revealed as follows: Si(3)N(4)→MoSi(2)→Mo(5)Si(3)→Mo(3)Si→Mo. Moreover, the addition of the Mo interface to silicon nitride ceramic could not significantly improve the tribological properties of Si(3)N(4) ceramic against titanium alloy in seawater, and the friction coefficients and wear rates of the sliding pairs increased with the increase in load. (4) Conclusions: The process failed to simultaneously improve the comprehensive mechanical properties and tribological performance of Si(3)N(4) ceramic by adding Mo as the soft interfacial layer. However, the utilization of metal interfacial layers to enhance the toughness of ceramics was further recognized and has potential significance for the optimization of ceramic formulation. |
format | Online Article Text |
id | pubmed-9029770 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-90297702022-04-23 Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites Li, Huaqiang Chen, Wei Zhao, Ziqiang Wang, Zhaoxun Zhang, Chen Gao, Jinghui Zhong, Lisheng Materials (Basel) Article (1) Background: the applications of ceramic materials in a friction pair and a moving pair are limited, just because of their poor toughness and unsatisfactory tribological characteristics. In view of this, Mo as a soft metal layer was added into a Si(3)N(4) matrix to improve its toughness and tribological characteristics. (2) Methods: The microstructure and metal/ceramic transition layer were examined using X-ray diffraction, scanning electron microscope, electron dispersive X-ray spectroscopy, and Vickers hardness. Bending strength and fracture toughness were also measured. Tribological characteristics were obtained on the pin-on-disc wear tester. (3) Results: It can be found that the multilayer structure could improve the fracture toughness of laminated composite compared with single-phase Si(3)N(4), but the bending strength was significantly reduced. Through microstructure observation, the transition layer of Si(3)N(4)/Mo-laminated composite was revealed as follows: Si(3)N(4)→MoSi(2)→Mo(5)Si(3)→Mo(3)Si→Mo. Moreover, the addition of the Mo interface to silicon nitride ceramic could not significantly improve the tribological properties of Si(3)N(4) ceramic against titanium alloy in seawater, and the friction coefficients and wear rates of the sliding pairs increased with the increase in load. (4) Conclusions: The process failed to simultaneously improve the comprehensive mechanical properties and tribological performance of Si(3)N(4) ceramic by adding Mo as the soft interfacial layer. However, the utilization of metal interfacial layers to enhance the toughness of ceramics was further recognized and has potential significance for the optimization of ceramic formulation. MDPI 2022-04-09 /pmc/articles/PMC9029770/ /pubmed/35454464 http://dx.doi.org/10.3390/ma15082772 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Li, Huaqiang Chen, Wei Zhao, Ziqiang Wang, Zhaoxun Zhang, Chen Gao, Jinghui Zhong, Lisheng Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites |
title | Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites |
title_full | Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites |
title_fullStr | Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites |
title_full_unstemmed | Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites |
title_short | Microstructure, Mechanical and Tribological Properties of Si(3)N(4)/Mo-Laminated Composites |
title_sort | microstructure, mechanical and tribological properties of si(3)n(4)/mo-laminated composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9029770/ https://www.ncbi.nlm.nih.gov/pubmed/35454464 http://dx.doi.org/10.3390/ma15082772 |
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