Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5439242 | Ceramics International | 2017 | 6 Pages |
Abstract
Used as pin or disc specimens, the tribological behaviors of hot-pressed B4C-hBN ceramic composites containing different contents of hBN (0, 5, 10, 20 and 30Â wt%) coupled with B4C ceramic under dry sliding condition have been investigated using a pin-disc tribometer. Experimental results show that, the dry sliding tribological behaviors of B4C-hBN ceramic composites against B4C are obviously different when B4C-hBN ceramic composites are used as pin or disc specimens, respectively. When B4C-hBN ceramic composites are used as pin specimens, with hBN content increasing, the friction coefficients of B4C-hBN/B4C pairs gradually increase; however, when B4C-hBN ceramic composites are used as disc specimens, with hBN content increasing, the friction coefficients of B4C/B4C-hBN pairs gradually decrease. The reasons that cause the discrepancy are discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xiuqing Li, Yimin Gao, Shizhong Wei, Qingxia Yang,