FRICTION AND WEAR OF DIAMOND AND DIAMOND-LIKE CARBON COATINGS
FRICTION AND WEAR OF DIAMOND AND DIAMOND-LIKE CARBON COATINGS
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DOI：
10.1016/s0257-8972(07)80061-2
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发表时间：
1992-11-23
影响因子：
5.4
通讯作者：
GARSCADDEN, A
中科院分区：
文献类型：
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作者：
MIYOSHI, K;WU, RLC;GARSCADDEN, A
用天然金刚石片、金刚石薄膜、低密度和高密度类金刚石(DLC)薄膜与天然金刚石和氮化硅(Si3N4)销钉试件在湿空气和干氮气中进行往复滑动摩擦试验。结果表明，对于天然金刚石销钉接触，金刚石膜和天然金刚石片对水分不敏感，但水分会增加DLC膜的摩擦系数和磨损因数。在湿空气和干氮气中，金刚石膜的摩擦因数和磨损因数与天然金刚石片的摩擦系数和磨损因数基本相似。在干氮气中，高密度DLC膜与金刚石和Si3N4针状样品的摩擦系数一般较低(约0.02)，与天然金刚石片和金刚石膜的摩擦系数相近。与天然金刚石和氮化硅接触的材料的磨损率一般按天然金刚石片>金刚石膜>高密度类金刚石膜>低密度类金刚石膜的顺序递增。环境中的水分增加了Si3N4销与所有材料(天然金刚石片、金刚石膜和类金刚石膜)接触时的摩擦系数。这种摩擦的增加是由于潮湿空气中Si3N针脚表面生成的硅氧化膜所致。
Reciprocating sliding friction experiments were conducted with a natural diamond flat, diamond films, and low- and high-density diamondlike carbon (DLC) films in contact with pin specimens of natural diamond and silicon nitride (Si3N4) both in humid air and in dry nitrogen. The results indicated that for natural diamond pin contacts the diamond films and the natural diamond flat were not susceptible to moisture but that moisture could increase both the coefficients of friction and wear factors of the DLC films. The coefficients of friction and wear factors of the diamond films were generally similar to those of the natural diamond flat both in humid air and in dry nitrogen. In dry nitrogen the coefficients of friction of the high-density DLC films in contact with pin specimens of both diamond and Si3N4 were generally low (about 0.02) and similar to those of the natural diamond flat and the diamond films. The wear factors of the materials in contact with both natural diamond and Si3N4 were generally in the ascending order of natural diamond flat, diamond film, high-density DLC film, and low-density DLC film. Moisture in the environment increased the coefficients of friction for Si3N4 pins in contact with all the materials (natural diamond flat, diamond films, and DLC films). This increase in friction is due to the silicon oxides film produced on the surface of Si3N, pins in humid air.