液相烧结碳化硅陶瓷的摩擦磨损行为  

Friction and Wear Behaviors of Liquid-phase Sintered Silicon Carbide Ceramics

作　　者：张磊[1] 茅学志 陈国宏[2] 张明 何新农 汤文明[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,合肥230009 [2]国网安徽省电力公司电力科学研究院,合肥230601 [3]安徽德润工业设备有限公司,池州242800

出　　处：《理化检验（物理分册）》2016年第12期841-845,共5页Physical Testing and Chemical Analysis(Part A:Physical Testing)

基　　金：安徽省科技攻关资助项目(1301022049)

摘　　要：采用环块对磨方式,以烧结致密的SiC(S-SiC)陶瓷为对磨环,研究了液相烧结碳化硅陶瓷(LPS-SiC)在干摩擦和滴油润滑条件下的摩擦磨损行为。结果表明:LPS-SiC陶瓷干摩擦条件下的磨损包含跑合磨损、稳定磨损和剧烈磨损3个阶段,磨损机理主要为磨粒磨损和脆性剥落,磨损量大;在滴油润滑条件下,该摩擦副的摩擦因数大大降低,LPS-SiC陶瓷的磨损仅包含跑合磨损和稳定磨损两个阶段,其磨损机理主要为脆性剥落和疲劳磨损,磨损量小;LPS-SiC陶瓷摩擦块的磨损体积随载荷的增加而增大,随滴油速率的增大而减小。Friction and wear behaviors of liquid-phase sintered SiC ceramics （LPS-SiC） under conditions of dry friction and oil lubrication friction were studied by employing ring-block type friction pair with fully-dense sintered SiC ceramics （S-SiC） as the friction ring. The results show that under the dry friction condition, the friction and wear of LPSSiC contained three stages of running-in wear, stable wear and severe wear, and the wear mechanism was a mixture mode of abrasive wear and brittle deprivation with a large wear volume. On the contrary, under the oil lubrication condition, the friction and wear of LPS-SiC included two stages of running-in wear and stable wear, and the wear mechanism was a mixture mode of brittle deprivation and fatigue wear with a small wear volume. The wear volume of LPS-SiC increased with the increase of applied loading and decreased with the increase of oil dropping rate .

关 键 词：碳化硅陶瓷 液相烧结 摩擦磨损 摩擦因数 磨损机理 磨损体积 

分 类 号：TQ174.1[化学工程—陶瓷工业]