Dry sliding tribological properties of self-mated couples of B4C-hBN ceramic composites. Issue 1 (January 2017)

• Record Type: Journal Article
• Authors: Li, Xiuqing; Gao, Yimin; Wei, Shizhong; Yang, Qingxia; Zhong, Zhichao
• Is Part Of: Ceramics international. Volume 43:Issue 1(2017)Part A
• Page Start: 162
• Page End: 166
• Publication Date: 2017-01
• Subjects: A. Hot pressing -- B. Composites -- C. Friction -- D. Borides; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.09.128
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this paper, dry sliding tribological properties of self-mated couples of B4 C-hBN ceramic composites containing different amounts of hBN have been evaluated using a pin-on-disc friction and wear machine, and the worn surfaces of B4 C-hBN specimens have been observed and analyzed by scanning electron microscope (SEM). It is found that the dry sliding tribological properties of self-mated couples of B4 C-hBN ceramic composites take on obvious regularity: with hBN content increasing, the friction coefficient gradually decreases, but the wear coefficient gradually increases. The decrease of friction coefficient could be largely attributed to the formation of a transfer film formed on the wearing surface of the B4 C-hBN specimens. The formation of the film is investigated.