Mechanical properties and tribological behavior of alumina/zirconia composites modified with SiC and plasma treatment

被引：14
|
作者：
Liu, S. Y. [1 ]
Wang, Y. [1 ]
Zhou, C. [1 ]
Pan, Z. Y. [2 ]
机构：
[1] Harbin Inst Technol, Dept Mat Sci, Harbin 150001, Peoples R China
[2] Xian Aerosp Engine Factory, Xian, Peoples R China
来源：
WEAR | 2015年 / 332卷
关键词：
Sliding wear; Nano-SiC; Plasma treating; Spark plasma sintering; MICROSTRUCTURE; WEAR; PARTICLES;
D O I：
10.1016/j.wear.2015.01.036
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this work, Al2O3-ZrO2 nanocomposite ceramics were fabricated by spark plasma sintering (sps). The effects of nano-sized SiC and plasma treating technology on the tribological behavior were investigated. The experimental results showed that the grain size of ZrO2 changed from 250 nm to 160 nm with the addition of nano-SiC. The highest value of toughness, 6.0 MPa m(1/2), was acquired in Al2O3-ZrO2-SiC composite ceramics after plasma treating technology, which was 20% higher than that in Al2O3-ZrO2 ceramics. Wear volume decreased 44% and 14% than Al2O3-ZrO2 ceramics as the addition of nano-SiC particles at load 5 N and 10 N. Fine grain, phase transformation toughening and formation of tribofilm were the main reasons to the improvement of anti-wear properties in composite ceramics. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：885 / 890
页数：6
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