Tribological behaviors of B4C-hBN ceramic composites used as pins or discs coupled with B4C ceramic under dry sliding condition

被引：39
作者：
Li, Xiuqing [1 ]
Gao, Yimin [2 ]
Wei, Shizhong [1 ]
Yang, Qingxia [3 ]
机构：
[1] Henan Univ Sci & Technol, Minist Educ, Engn Res Ctr Tribol & Mat Protect, Luoyang 471023, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
[3] Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710049, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2017年 / 43卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Hot pressing; Composites; Friction; Borides; MECHANICAL-PROPERTIES; EROSION BEHAVIOR; WEAR; FRICTION;
D O I：
10.1016/j.ceramint.2016.10.136
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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 30 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.
引用
收藏
页码：1578 / 1583
页数：6
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