Tribological Behavior of Polytetrafluoroethylene Coatings Based on LY12 Substrates in the Space Environment

doi:10.1007/s12204-014-1553-z

上海交通大学学报（英文版） ›› 2014, Vol. 19 ›› Issue (5): 636-640.doi: 10.1007/s12204-014-1553-z

• • 上一篇

Tribological Behavior of Polytetrafluoroethylene Coatings Based on LY12 Substrates in the Space Environment

YUAN Xing-dong1* (袁兴栋), LIU Yong2 (刘勇), YANG De-zhuang2 (杨德庄), HE Shi-yu2 (何世禹)

(1. School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, China; 2. Space Material and Environment Engineering Laboratory, Harbin Institute of Technology, Harbin 150001, China)

出版日期:2014-10-31 发布日期:2014-11-12
通讯作者: YUAN Xing-dong (袁兴栋) E-mail:yxdhit@sdjzu.edu.cn

Tribological Behavior of Polytetrafluoroethylene Coatings Based on LY12 Substrates in the Space Environment

YUAN Xing-dong1* (袁兴栋), LIU Yong2 (刘勇), YANG De-zhuang2 (杨德庄), HE Shi-yu2 (何世禹)

(1. School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, China; 2. Space Material and Environment Engineering Laboratory, Harbin Institute of Technology, Harbin 150001, China)

Online:2014-10-31 Published:2014-11-12
Contact: YUAN Xing-dong (袁兴栋) E-mail:yxdhit@sdjzu.edu.cn

摘要/Abstract

摘要： The spacecraft space radiation environment was simulated by 60Co source. The polytetrafluoroethylene (PTFE) coatings were fabricated on LY12 substrates. And the effect of gamma (γ) irradiation on the tribological behavior of PTFE coatings under vacuum conditions was investigated. Results indicate that the radiation dose has insignificant effect on the friction coefficient of PTFE coatings, and the wear of PTFE coatings reduces with the increase of gamma dose. As the gamma dose was 100 kGy, the friction coefficient of the PTFE coatings first increased with the increase of sliding velocity and then decreased, and the wear of the PTFE coatings decreased with the increase of sliding speed. As the gamma dose was 100 kGy, the friction coefficient of the PTFE coatings first decreased with the increase of load and then increased, and the wear rate of PTFE coatings increased with the increase of load. Scanning electron microscope was utilized.

关键词: sliding wear, two-body abrasion, polymers, high vacuum

Abstract: The spacecraft space radiation environment was simulated by 60Co source. The polytetrafluoroethylene (PTFE) coatings were fabricated on LY12 substrates. And the effect of gamma (γ) irradiation on the tribological behavior of PTFE coatings under vacuum conditions was investigated. Results indicate that the radiation dose has insignificant effect on the friction coefficient of PTFE coatings, and the wear of PTFE coatings reduces with the increase of gamma dose. As the gamma dose was 100 kGy, the friction coefficient of the PTFE coatings first increased with the increase of sliding velocity and then decreased, and the wear of the PTFE coatings decreased with the increase of sliding speed. As the gamma dose was 100 kGy, the friction coefficient of the PTFE coatings first decreased with the increase of load and then increased, and the wear rate of PTFE coatings increased with the increase of load. Scanning electron microscope was utilized.

Key words: sliding wear, two-body abrasion, polymers, high vacuum

中图分类号:

TG 115.5

YUAN Xing-dong1* (袁兴栋), LIU Yong2 (刘勇), YANG De-zhuang2 (杨德庄), HE Shi-yu2 (何世禹). Tribological Behavior of Polytetrafluoroethylene Coatings Based on LY12 Substrates in the Space Environment[J]. 上海交通大学学报（英文版）, 2014, 19(5): 636-640.

YUAN Xing-dong1* (袁兴栋), LIU Yong2 (刘勇), YANG De-zhuang2 (杨德庄), HE Shi-yu2 (何世禹). Tribological Behavior of Polytetrafluoroethylene Coatings Based on LY12 Substrates in the Space Environment[J]. Journal of shanghai Jiaotong University (Science), 2014, 19(5): 636-640.

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Tribological Behavior of Polytetrafluoroethylene Coatings Based on LY12 Substrates in the Space Environment

Tribological Behavior of Polytetrafluoroethylene Coatings Based on LY12 Substrates in the Space Environment

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