Evaluation of Hot Pressed Silicon Nitride as a Rolling Bearing Material
Evaluation of Hot Pressed Silicon Nitride as a Rolling Bearing Material
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热压氮化硅作为滚动轴承材料的评价
DOI：
10.1080/05698197508982763
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发表时间：
1975
影响因子：
2.1
通讯作者：
E. Rabinowicz
中科院分区：
文献类型：
--
作者：
H. Dalal;Y. Chiu;E. Rabinowicz
为评估氮化硅作为滚动接触轴承材料的适宜性，进行了一系列试验。氮化硅在某些常规润滑剂中的润滑能力是令人满意的。这是通过润湿性研究、光学EHD试验台上的润滑膜厚度和牵引系数测量以及销-盘法测量的摩擦系数来确定的。在磨床上用600粒度的碳化硅磨料测得的磨料磨损系数比其他陶瓷要高。它还取决于氮化硅的组成。用钢辊和钢珠对钢制和氮化硅平垫圈进行了滚动接触疲劳对比试验。结果表明，氮化硅表面存在较高的磨损率，导致轧件在滚动过程中产生沟槽。在所用试验条件下，氮化硅的抗剥落性能高于钢。氮化硅中的表面相互作用。
A series of tests has been conducted to evaluate the suitability of silicon nitride as a bearing material for rolling contact applications. The ability of silicon nitride to be lubricated by some conventional lubricants was found to be satisfactory. This was determined by wettability studies, lubricant film thickness and traction coefficient measurements on the optical EHD rig and friction coefficient measurements by the pin-on-disk method. The abrasive wear coefficient, measured on a lopping machine using 600 grit SiC abrasive, was found to be high compared to other ceramics. It was also dependent on the composition of the silicon nitride. Comparative rolling contact fatigue tests on steel and silicon nitride flat washers were conducted using steel rollers and balls. A high wear rate leading to grooving in the rolling track on silicon nitride was observed. The spalling resistance of silicon nitride was found to be higher than that of steel under the test conditions used. Surface interactions in the Si3N4...