Influence of secondary electro-conductive phases on sliding wear performance of zirconia based ceramic composites

被引：0
|
作者：
Bonny, K. [1 ]
De Baets, P. [1 ]
Van der Biest, O. [2 ]
Vleugels, J. [2 ]
Lauwers, B. [3 ]
机构：
[1] Univ Ghent, Dept Mech Construct & Prod, IR04, Ghent, Belgium
[2] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Heverlee, Belgium
[3] Katholieke Univ Leuven, Dept Mech Engn, B-3001 Heverlee, Belgium
来源：
PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3 | 2007年 / 561-565卷
关键词：
ZrO2; composite; wire EDM; surface integrity; wear rate; reciprocating dry sliding;
D O I：
10.4028/www.scientific.net/MSF.561-565.651
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Zirconia-based ceramic composites such as ZrO2-WC, ZrO2-TiCN and ZrO2-TiN, are suitable for wire-EDM, due to their sufficiently electro-conductive secondary phases inside. Thus, the material removal technique of EDM to shape complex geometry materials economically and with high accuracy, irrespective of mechanical properties, could be successfully employed on these ceramics. Samples of these ZrO2-based ceramics were developed in laboratory and manufactured and surface finished by wire-EDM. Reciprocative dry sliding pin-on-plate experiments revealed that the ZrO2-WC composite exhibits better tribological characteristics in comparison with the composites of ZrO2-TiCN and ZrO2-TiN. Furthermore, topographies and cross-sectional views of worn surfaces were analyzed by SEM, revealing that the secondary phase inside the investigated composites governs the wear mechanism.
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页码：651 / +
页数：2
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