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Impact of counterpart materials and nanoparticles on the transfer film structures of polyimide composites
Department先进润滑与防护材料研究发展中心
Qi HM(齐慧敏)1,2; Li GT(李贵涛)1; Zhang G(张嘎)1; Wang TM(王廷梅)1; Wang QH(王齐华)1; Zhang G(张嘎)
The second department固体润滑国家重点实验室
2016
Source PublicationMaterials and Design
ISSN0264-1275
Volume109Pages:367-377
Abstract

The nanostructures of the transfer films of polyimide (PI) composites generated when slid against various metallic counterparts including standard bearing steel, electroplated chromium coating (Cr), and stainless steel were comprehensively investigated. Moreover, the effect of h-BN and amorphous SiO2 nanoparticles on the transfer film structures of the conventional composite filled with short carbon fibers and graphite were studied. It was identified that the composition of the counterparts and nanoparticles' structure exert important effects on transfer film formation. When the conventional composite rubs with the steel counterparts, obvious tribo-oxidation occurs and therefore retards material transfer. However, the composite shows a much improved tribological performance when slides against Cr due to formation of a carbonaceous transfer film. Both kinds of nanoparticles significantly mitigate tribo-oxidation and greatly enhance the tribological performance. Nevertheless, the two different kinds of nanoparticles lead to distinct transfer film structures. High resolution transmission electron microscopy analyses of transfer films reveal that tribo-sintering of nano-SiO2 occurs, whereas h-BN particles are crushed and uniformly mixed with wear products. Moreover, h-BN transforms to c-BN probably owing to the high temperature and stress on the rubbing interface. This work can provide guidance for the formulation of best matching composites according to metallic counterparts.

KeywordTransfer Film Nanostructure Polyimide Composites Nanoparticles Counterpart Materials
Subject Area材料科学与物理化学
DOI10.1016/j.matdes.2016.07.088
Funding OrganizationNational Natural Science Foundation of China (Grant no. 51475446;Grant no. 51205386);Chinese “Thousand Youth Talents Plan” Project
Indexed BySCI
If4.364
Language英语
Funding Project聚合物自润滑复合材料组
compositor第一作者单位
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.licp.cn/handle/362003/20398
Collection固体润滑国家重点实验室(LSL)
中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心
Corresponding AuthorZhang G(张嘎)
Affiliation1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qi HM,Li GT,Zhang G,et al. Impact of counterpart materials and nanoparticles on the transfer film structures of polyimide composites[J]. Materials and Design,2016,109:367-377.
APA Qi HM,Li GT,Zhang G,Wang TM,Wang QH,&张嘎.(2016).Impact of counterpart materials and nanoparticles on the transfer film structures of polyimide composites.Materials and Design,109,367-377.
MLA Qi HM,et al."Impact of counterpart materials and nanoparticles on the transfer film structures of polyimide composites".Materials and Design 109(2016):367-377.
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