Al2O3-TiC/Al2O3-TiC-CaF2复合叠层陶瓷材料摩擦磨损性能

宋培龙; 杨学锋; 王守仁; 杨丽颖

Al₂O₃-TiC/Al₂O₃-TiC-CaF₂复合叠层陶瓷材料摩擦磨损性能

济南大学机械工程学院, 济南 250022

基金项目: 国家自然科学基金青年科学基金(51005100);中国博士后科学基金面上项目(20110491572);山东省科技发展计划(2012GGX10324)

详细信息

通讯作者:
杨学锋,博士,副教授,主要从事陶瓷模具研发及相关材料摩擦学研究 E-mail:me_yangxf@ujn.edu.cn

中图分类号: TB331;TH145.1+1;TH117.1
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出版历程
- 收稿日期: 2012-04-08
- 修回日期: 2012-09-16
- 刊出日期: 2013-06-14

Friction and wear properties of Al₂O₃-TiC/Al₂O₃-TiC-CaF₂ composite laminated ceramic

School of Mechanical Engineering, University of Ji'nan, Ji'nan 250022, China

摘要

摘要: 将Al₂O₃-TiC陶瓷材料与具有固体润滑特性的Al₂O₃-TiC-CaF₂陶瓷材料进行叠层, 通过真空热压烧结制备Al₂O₃-TiC/Al₂O₃-TiC-CaF₂复合叠层陶瓷材料。在环盘式摩擦磨损试验机上进行摩擦磨损实验, 研究该材料在不同载荷、转速条件下的摩擦系数和磨损率, 分别用SEM及EDS观察材料磨损前后的微观形貌和分析其成分组成, 研究其磨损机制。结果表明: 在相同载荷条件下, Al₂O₃-TiC/Al₂O₃-TiC-CaF₂复合叠层陶瓷材料的摩擦系数和磨损率随着转速的升高而下降, 在相同转速条件下, 其摩擦系数和磨损率随着载荷的增加而下降; Al₂O₃-TiC/Al₂O₃-TiC-CaF₂复合叠层陶瓷材料的磨损机制主要是磨粒磨损和黏着磨损。
- 陶瓷 /
- 叠层 /
- 磨损 /
- 表面分析 /
- 热压烧结
Abstract: A kind of Al₂O₃-TiC/Al₂O₃-TiC-CaF₂ laminated composite ceramic layered stack by Al₂O₃-TiC ceramic and self-lubricating Al₂O₃-TiC-CaF₂ composite was prepared by vacuum hot pressing sintering. The friction and wear behaviors and wear mechanism of laminated composite were researched though the ring-disc friction and wear tester in different load conditions and rotation speeds, the worn morphology was observed by SEM and the elements were investigated by EDS. Results show that the friction coefficient and wear rate decline when the rotation speed increases at the same load conditions, and also decrease with the increase of the load with the same rotating speed. The main wear mechanisms of Al₂O₃-TiC/Al₂O₃-TiC-CaF₂ laminated composite are abrasive wear and adhesive wear.
- ceramic /
- laminates /
- wear /
- surface analysis /
- hot pressing sintering