| Ti_3SiC_2的加入对Ag-MoS_2-graphite复合材料力学及摩擦磨损性能的影响 |
| |
| 引用本文： | 闫淑萍,韦尧兵,韩杰胜,马文林,郭铁明,孟军虎.Ti_3SiC_2的加入对Ag-MoS_2-graphite复合材料力学及摩擦磨损性能的影响[J].摩擦学学报,2015,35(5):622-628. |
| |
| 作者姓名： | 闫淑萍 韦尧兵 韩杰胜 马文林 郭铁明 孟军虎 |
| |
| 作者单位： | 1. 兰州理工大学, 甘肃 兰州 730050;2. 中国科学院兰州化学物理研究所 固体润滑国家重点试验室, 甘肃 兰州 730000;兰州理工大学, 甘肃 兰州 730050;中国科学院兰州化学物理研究所 固体润滑国家重点试验室, 甘肃 兰州 730000;中国科学院兰州化学物理研究所 固体润滑国家重点试验室, 甘肃 兰州 730000;兰州理工大学, 甘肃 兰州 730050;中国科学院兰州化学物理研究所 固体润滑国家重点试验室, 甘肃 兰州 730000 |
| |
| 基金项目： | 中国科学院“百人计划”资助项目(孟军虎). |
| |
| 摘 要： | 采用热压烧结技术制备了Ag-Mo S2-graphite和Ag-Mo S2-graphite-Ti3Si C2两种银基自润滑复合材料,考察了两种材料的致密度、硬度、弯曲强度及其在不同环境(大气和低真空)中的摩擦磨损性能.结果表明:低润湿性使得Ti3Si C2与基体界面处的孔隙增多,降低了致密度和弯曲强度,但对硬度影响不明显;摩擦过程中Ti3Si C2颗粒易于从基体材料表面剥落,阻碍了润滑膜的形成,造成Ag-Mo S2-graphite-Ti3Si C2复合材料的摩擦系数高于Ag-Mo S2-graphite复合材料;但Ti3Si C2的添加能够明显提高复合材料在大气中的耐磨性能,这主要与摩擦过程中的材料转移和摩擦化学反应有关.
|
| 关 键 词： | 银基复合材料 热压烧结 Ti3SiC2 摩擦磨损性能 |
Effect of the Addition of Ti3SiC2 on Mechanical and Friction/Wear Properties of Ag-Matrix Composites |
| |
| YAN Shu-ping,WEI Yao-bing,HAN Jie-sheng,MA Wen-lin,GUO Tie-ming and MENG Jun-hu.Effect of the Addition of Ti3SiC2 on Mechanical and Friction/Wear Properties of Ag-Matrix Composites[J].Tribology,2015,35(5):622-628. |
| |
| Authors: | YAN Shu-ping WEI Yao-bing HAN Jie-sheng MA Wen-lin GUO Tie-ming and MENG Jun-hu |
| |
| Institution: | 1. Lanzhou University of Technology, Lanzhou 730050, China;2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
| |
| Abstract: | Ag-MoS2-graphite and Ag-MoS2-graphite-Ti3SiC2 composites were prepared by hot-pressing method. The relative density, hardness, bending strength and the properties of friction and wear of the composites in both air and vacuum environment were investigated. It is found that the density and bending strength of the composite decreased after the introduction of Ti3SiC2 particulates because of the occurrence of pores at the interface between Ti3SiC2 and matrix. However, the addition of Ti3SiC2 had a negligible effect on the hardness of the composite. The friction coefficient of Ag-MoS2-graphite-Ti3SiC2 was higher than Ag-MoS2-graphite without respect of environment. This can be attributed to the three body abrasive effect of detached Ti3SiC2 particles which hampered the formation of solid lubricating layer. However, the wear resistant of the composite in air was improved obviously after incorporation of Ti3SiC2 particles due to the generation of oxides of copper. |
| |
| Keywords: | Ag-matrix composites hot-pressing method Ti3SiC2 friction and wear properties |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《摩擦学学报》浏览原始摘要信息 |
| 点击此处可从《摩擦学学报》下载免费的PDF全文 |
|
