Non-diamond finishing of silicon nitride for low friction against steel

被引：0
|
作者：
Crosbie, GM [1 ]
Allor, RL [1 ]
Gangopadhyay, A [1 ]
McWatt, DG [1 ]
Willermet, PA [1 ]
机构：
[1] Ford Motor Co, Res Lab, Dearborn, MI 48124 USA
来源：
25TH ANNUAL CONFERENCE ON COMPOSITES, ADVANCED CERAMICS, MATERIALS, AND STRUCTURES: A | 2001年 / 22卷 / 03期
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D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A reduced friction coefficient in a silicon nitride-against-steel hybrid bearing combination in a tappet shim-cam lobe couple can lead to a fuel economy benefit, as previously reported (CESP 20[4] 25-32, 1999). Here, we describe the process that is used to achieve the non-diamond ceramic finish associated with the low lubricated friction. Low cost follows from the use of aluminum oxide wheels to provide a special surface finish on silicon nitride based ceramics (U.S. Patent No. 6,050,881). Low friction follows from the smooth, phosphorus-containing deposited surface layer that is derived from conventional oil additives. The alumina-enriched silicon nitride surface is similar to that of iron oxides on steel for which the phosphorus-containing additives are designed to interact.
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页码：191 / 196
页数：6
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