陶瓷的润滑问题

LUBRICATION OF CERAMICS

本文阐述并分析了陶瓷材料的摩擦磨损、润滑研究现状．由于陶瓷的化学惰性，传统的润滑剂、添加剂在陶瓷表面的吸附力较弱，且很难在边界润滑条件下与表面发生摩擦化学反应形成极压润滑膜．传统润滑剂对陶瓷的润滑效果与润滑金属相比要差得多尽管在干摩时陶瓷材料磨损率比金属小得多，但仍比实际应用时要求的磨损率高几个量级．有必要从分子设计入手研制新型的、有效的陶瓷润滑剂．根据现状，作者指出陶瓷摩擦学研究的几个重点方面．

A review was given of the lubrication of ceramics, also the wear and friction properties of ceramics were dealted with. It is well known that conventional lubricants and additives could lubricate metallic surfaces successfully. The lubricants and additives would react with the surfaces to form load-bearing films,which separate the direct contact of surfaces to minimize wear and reduce friction in boundary lubrication,However, these lubricants or additives could not lubricate the ceramic surfaces well because of the chemical inertness of ceramics. Although dry wear rates with ceramic materials are generally much lower than those of metals, for most practical applications, the wear coefficient for dry wear with ceramic components is several order of magnitude too high for commercial use. So the lubrication of ceramics is very important to their practical use. Some research areas concerning with the wear, friction and lubrication of ceramics, which should be emphasized and developed urgently, were suggested.