Tribological properties of gamma-Y(2)Si(2)O(7) ceramic against AISI 52100 steel and Si(3)N(4) ceramic counterparts

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	Tribological properties of gamma-Y(2)Si(2)O(7) ceramic against AISI 52100 steel and Si(3)N(4) ceramic counterparts
	Z. Q. Sun ; L. Wu ; M. S. Li ; Y. C. Zhou
刊名	Wear
	2009
卷号	266 期号:9-10 页码:960-967
关键词	Y(2)Si(2)O(7) Friction and wear Wear mechanism Wear debris hot corrosion molten-salt si3n4-sio2-y2o3 tribofilm mechanism friction system wear
ISSN号	0043-1648
中文摘要	Reciprocating ball-on-flat dry sliding friction and wear experiments have been conducted on single-phase gamma-Y(2)SO(7) ceramic flats in contact with AISI 52100 bearing steel and Si(3)N(4) ceramic balls at 5-15 N normal loads in an ambient environment. The kinetic friction coefficients of gamma-Y(2)Si(2)O(7) varied in the range over 0.53-0.63 against AISI 52100 steel and between 0.51-0.56 against Si(3)N(4) ceramic. We found that wear occurred predominantly during the running-in period and it almost ceased at the steady friction stage. The wear rates Of gamma-Y(2)Si(2)O(7) were in the order of 10(-4) mm(3)/(N m). Besides, wear debris strongly influenced the friction and wear processes. The strong chemical affinity between gamma-Y(2)Si(2)O(7) and AISI 52100 balls led to a thick transfer layer formed on both contact surfaces of the flat and counterpart ball, which changed the direct sliding between the ball and the flat into a shearing within the transfer layer. For the gamma-Y(2)Si(2)O(7)/Si(3)N(4) pair, a thin silica hydrate lubricant tribofilm presented above the compressed debris entrapped in the worn track and contact ball surface. This transfer layer and the tribofilm separated the sliding couple from direct contact and contributed to the low friction coefficient and wear rate. (C) 2009 Elsevier B.V. All rights reserved.
原文出处	://WOS:000265816800009
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32317]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Q. Sun,L. Wu,M. S. Li,et al. Tribological properties of gamma-Y(2)Si(2)O(7) ceramic against AISI 52100 steel and Si(3)N(4) ceramic counterparts[J]. Wear,2009,266(9-10):960-967.
APA	Z. Q. Sun,L. Wu,M. S. Li,&Y. C. Zhou.(2009).Tribological properties of gamma-Y(2)Si(2)O(7) ceramic against AISI 52100 steel and Si(3)N(4) ceramic counterparts.Wear,266(9-10),960-967.
MLA	Z. Q. Sun,et al."Tribological properties of gamma-Y(2)Si(2)O(7) ceramic against AISI 52100 steel and Si(3)N(4) ceramic counterparts".Wear 266.9-10(2009):960-967.