Effect of Mo and Ag on the friction and wear behavior of ZrO2 (Y2O3)-Ag-CaF2-Mo composites from 20 °C to 1000 °C
Effect of Mo and Ag on the friction and wear behavior of ZrO2 (Y2O3)-Ag-CaF2-Mo composites from 20 °C to 1000 °C
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DOI：
10.1016/j.triboint.2014.04.032
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发表时间：
2014-10-01
影响因子：
6.2
通讯作者：
Liu, Weimin
中科院分区：
文献类型：
--
作者：
Kong, Lingqian;Zhu, Shengyu;Liu, Weimin
本文采用热压工艺制备了一系列氧化锆基高温自润滑复合材料。研究了Mo和Ag在较宽温度范围内对ZrO2(Y2O3)-Ag-CaF2-Mo复合材料摩擦磨损行为的影响。X射线衍射结果表明，在400℃以上的磨损表面生成了CaMoO4，CaMoO4良好的润滑性能使其具有较低的高温摩擦系数。在所有试验温度下，ZrO_2(Y_2O_3)-10Ag-10CaF(2)-10Mo复合材料均表现出良好的耐磨性，这是硬度和相变共同作用的结果。(C)2014爱思唯尔有限公司。保留所有权利。
In this paper, a series of ZrO2 matrix high-temperature self-lubricating composites were prepared by hot-press technique. The effect of Mo and Ag on the friction and wear behavior of the ZrO2(Y2O3)-Ag-CaF2-Mo composites in a wide temperature range was investigated. The XRD results showed that CaMoO4 formed on the worn surface above 400 degrees C. The excellent lubrication performance of CaMoO4 endowed the low coefficient of friction of the ZrO2(Y2O3)-Ag-CaF2-Mo composites at high temperatures. The ZrO2(Y2O3)-10Ag-10CaF(2)-10Mo composites showed favorable wear resistance at all the tested temperatures which was attributed to the combined action of hardness and phase transformation. (C) 2014 Elsevier Ltd. All rights reserved.