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J Chin Soc Corr Pro  2009, Vol. 29 Issue (3): 235-240    DOI:
技术报告 Current Issue | Archive | Adv Search |
ARC EROSION PROPERTY OF C/C COMPOSITES WITH ELECTRIC CURRENT
WANG Lei1; HU Daochun2
1. School of Mechanical Engineering;Taizhou University; Taizhou 318000
2. School of Mechatronics Engineering; Taizhou Vocational & TechnicalCollege; Taizhou; 318000
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Abstract  

To understand the arc erosion properties of carbon/carbon (C/C) composites with electric current, the experiments were carried out on the HST-100 tribo-tester with QCr0.5 disk under electric current, and compared with the materials of metal-impregnated carbon, which used in electric railway. Microstructure and phase composition of the friction surface were observed and analyzed by scanning electron microscope(SEM) and X-ray diffractometer(XRD), and macroscopic temperature of the fiction surface were measured. The results show that values of friction coefficients and wear rate of two kinds materials increased with increase of velocities. But both the friction coefficient and wear rate of C/C composites were lower than that of metal-impregnated, and the tendency of increment was poor. The C/C composites own an outstanding tribological characteristic and excellent current-carrying quality, and meets the performance requirements of the contact strip under high speed.

Key words:  carbon/carbon composites      arc erosion      current-carrying quality      friction coefficient      wear rate     
Received:  24 December 2008     
ZTFLH: 

TH117.3

 
Corresponding Authors:  HU Daochun     E-mail:  springer\_ 1028@163.com

Cite this article: 

WANG Lei HU Daochun. ARC EROSION PROPERTY OF C/C COMPOSITES WITH ELECTRIC CURRENT. J Chin Soc Corr Pro, 2009, 29(3): 235-240.

URL: 

https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y2009/V29/I3/235

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