Preparation of Cf/Cu-C contact strip and wear behaviour under electric current

被引：5

作者：

Tu, C. J. ^{[1
,2
]}

Deng, L. P. ^{[1
,2
]}

Chen, D. ^{[1
,2
]}

Xiong, X. Z. ^{[1
]}

Wang, Y. F. ^{[1
]}

Zhu, Y. ^{[1
]}

机构：

[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, Hunan Prov Key Lab Spray Deposit Technol & Applic, Changsha 410082, Hunan, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2017年 / 33卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Contact strip; C-f/Cu-C material; Wear with current; Interface; COPPER MATRIX COMPOSITES; SHORT CARBON-FIBERS; CURRENT COLLECTORS; GRAPHITE; FRICTION; STEEL;

D O I：

10.1179/1743284715Y.0000000140

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel carbon and copper fibre knitted fabric (C-f/Cu) reinforced contact strip (C-f/Cu-C) was fabricated by pyrolytic carbon deposition and resin impregnation-carbonisation process. The interface characteristics of the composite were characterised by a scanning electron microscope and a metallographic microscope; resistivity, mechanical strength and wear properties with electric current were also investigated. The results indicated that the C-f/Cu-C material with density of 1.73gcm(-3) combined quite well between phase contacting areas for each interface. With resistivity of 10.16 mu Omega m and bending strength of 123MPa, the as prepared composite outperformed the present AR129 carbon contact strip (density, 1.70gcm(-3), resistivity, 33m; bending strength, 40MPa). The wear mechanisms of C-f/Cu-C with electric current were proved to be slightly arc erosion and abrasive wear.

引用

页码：98 / 103

页数：6

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