C/C-SiC刹车材料摩擦面出现沟槽的机理及其影响研究  

Study on the mechanism and influence of grooves on friction surface of C/C-SiC brake materials

作　　者：施伟伟 张艳萍 任金伟 韩文静 张挺 SHI Weiwei;ZHANG Yanping;REN Jinwei;HAN Wenjing;ZHANG Ting(Xi'an Aviation Brake Technology Co..Ltd.,Xi'an,710065,China)

机构地区：[1]西安航空制动科技有限公司,西安710065

出　　处：《复合材料科学与工程》2023年第3期95-98,共4页Composites Science and Engineering

摘　　要：对C/C-SiC刹车材料摩擦面沟槽的表观特征和物相分布进行了分析,研究了沟槽形成的原因、机理及其对刹车性能的影响。结果表明:当C/C-SiC刹车材料摩擦面出现大颗粒的硬质点时,会发生犁削磨耗或挤压剥落机制,产生明显的槽状沟槽或层状剥落沟槽;摩擦面有明显沟槽的C/C-SiC刹车材料刹车力矩整体高于摩擦面平整光滑无沟槽的C/C-SiC刹车材料刹车力矩。The apparent characteristics of grooves on the friction surface and phase distribution of the C/C-SiC brake materials were analyzed. The causes and mechanism of grooves formation and its influence on braking performance were studied. The results show that when there are large hard spots on the friction surface of C/C-SiC brake materials, plough abrasion or extrusion spalling mechanism will occur, resulting in obvious trough groove or layered spalling groove. The braking torque of C/C-SiC brake materials with obvious grooves on the friction surface is higher than that of C/C-SiC brake materials with smooth friction surface.

关 键 词：C/C-SIC 摩擦面 沟槽 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]