立方氮化硼固体涂层摩擦学性能

摘要

立方氮化硼（ CBN）作为新型材料正在广泛应用，已经被越来越多的专家学者所关注。制备了CBN固体涂层，在高温摩擦磨损试验机上进行了摩擦试验，考察了不同温度和压力下CBN固体涂层的摩擦系数，同时比较CBN固体涂层在两种粒度下的摩擦效果。试验结果表明：CBN固体涂层具有优良的减摩抗磨特性，摩擦系数随着压力的升高而降低，随着温度的升高而升高；温度和压力较低时细颗粒CBN比粗颗粒CBN摩擦系数低。%As a new material,cubic boron nitride(CBN) has been widely used and concerned by more and more ex-perts.CBN solid coating is prepared in this text ,and the friction test is done in the high temperature friction and wear machine .This text studies the influence of friction coefficient of CBN solid coating under different temperature and pressure ,and at the same time compares the friction effect of CBN solid coating under two kinds of particle size.The test result show that CBN solid coating has excellent antiwear and friction reduction properties .Its friction coefficient decreases with the increase of pressure ,and increases with the increase of temperature .When temperature and pressure is low ,fine particle CBN has lower coefficient of friction than coarse particle CBN .