Tribological properties and wear mechanisms of hot-pressed sintering mesocarbon microbeads (MCMBs)-SiC composites against different counterparts
2020-02-15
发表期刊CERAMICS INTERNATIONAL (IF:5.1[JCR-2023],4.7[5-Year])
ISSN0272-8842
EISSN1873-3956
卷号46期号:3页码:3896-3903
发表状态已发表
DOI10.1016/j.ceramint.2019.10.116
摘要

The sliding tribological properties of dense MCMBs-SiC composites with 30 wt% MCMBs against self-mated counterparts, WC and SSiC were studied through a block-on-ring method under different loads respectively. The dense composites with excellent mechanical properties were fabricated through hot pressed sintering method. The results showed that the tribological properties of MCMBs-SiC composites were affected more by the properties of counterparts than the applied load. Under different loads, compared to WC-mated and SSiC-mated friction pairs, the self-mated pairs showed lower and more stable dry friction coefficient (mu) due to the lubricating film formed on the sliding surfaces. At the same time, the WC-mated friction pairs showed the lowest wear rate due to the highest fracture toughness of WC counterparts. The SSiC-mated friction pairs showed the highest p and wear rate under both applied loads. The wear mechanisms of different friction pairs were also investigated. The results showed that although the applied loads and counterparts were different, the wear mechanisms of each friction pair can be divided into three stages. For WC-mated and SSiC-mated friction pairs, wear mechanisms were almost the same. The first stage was the mechanical wear of grains, then following by tribochemical reactions (mostly oxide reactions) and finally removal of tribochemical layers. For self-mated friction pairs, during the third stage, the lubricating films was generated on the working surfaces due to a large amount of graphite phase from MCMBs in the composites.

关键词MCMBs-SiC composites Tribological properties Dry friction Counterparts Wear mechanisms
收录类别SCI ; SCIE ; EI
语种英语
资助项目Natural Science Foundation of Shanghai[17ZR1434500]
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics
WOS记录号WOS:000508752000160
出版者ELSEVIER SCI LTD
WOS关键词C/C-SIC COMPOSITES ; SILICON-CARBIDE ; FRICTION ; BEHAVIOR ; CERAMICS
原始文献类型Article
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/105344
专题物质科学与技术学院_博士生
物质科学与技术学院_特聘教授组_黄政仁组
通讯作者Wang, Xiaojie; Yao, Xiumin; Huang, Zhengren
作者单位
1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 201899, Peoples R China
2.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位物质科学与技术学院
通讯作者单位物质科学与技术学院
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GB/T 7714
Wang, Xiaojie,Yao, Xiumin,Zhang, Hui,et al. Tribological properties and wear mechanisms of hot-pressed sintering mesocarbon microbeads (MCMBs)-SiC composites against different counterparts[J]. CERAMICS INTERNATIONAL,2020,46(3):3896-3903.
APA Wang, Xiaojie,Yao, Xiumin,Zhang, Hui,Liu, Xuejian,&Huang, Zhengren.(2020).Tribological properties and wear mechanisms of hot-pressed sintering mesocarbon microbeads (MCMBs)-SiC composites against different counterparts.CERAMICS INTERNATIONAL,46(3),3896-3903.
MLA Wang, Xiaojie,et al."Tribological properties and wear mechanisms of hot-pressed sintering mesocarbon microbeads (MCMBs)-SiC composites against different counterparts".CERAMICS INTERNATIONAL 46.3(2020):3896-3903.
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