热压烧结TZ3Y20A-SrSO4陶瓷基复合材料的高温摩擦学性能High-temperature tribological properties of hot-pressed TZ3Y20A-SrSO4 ceramic matrix composites
刘虹志,欧阳家虎,李玉峰
摘要(Abstract)：
采用化学沉淀法制备出粒径约80nm的等轴状SrSO4粉体。选用ZrO2(3mol%Y2O3)-20wt%Al2O3(TZ3Y20A)陶瓷为基体,采用热压烧结法制备出TZ3Y20A-SrSO4陶瓷基复合材料,并对复合材料的组织结构和力学性能进行了研究。采用球盘式高温摩擦磨损试验机测定复合材料从室温到800℃的摩擦学性能。TZ3Y20A-SrSO4复合材料在室温至800℃范围内摩擦系数在0.31～0.42之间,磨损率为10-5mm3/Nm数量级。加入SrSO4后复合材料的磨损表面形成了一层润滑膜,有效地改善了其高温摩擦磨损性能。
关键词(KeyWords)： 陶瓷基复合材料;SrSO4纳米粉体;热压烧结;高温摩擦学性能
基金项目(Foundation): 国家自然科学基金项目(50572020);; 国家863计划项目(2006AA03Z537);; 教育部新世纪优秀人才支持计划项目(NCET-06-0339)
作者(Author): 刘虹志,欧阳家虎,李玉峰
参考文献(References)：
- [1]Ouyang J H,Sasaki S,Murakami T,et al.High-temperature solidlubrication of spark-plasma-sintered ZrO2(Y2O3)-based composites[C].Proceedings of theJASTTribology Conference(Niigata’2003),2003,(11-13):459-460.
- [2]Ouyang J H,Sasaki S,Murakami T,et al.Spark-plasma-sintered ZrO2(Y2O3)-BaCrO4self-lubricating composites for hightemperature tribological applications[J].Ceramics International,2005(31):543-553.
- [3]Ouyang J H,Murakami T,Sasaki S,et al.Hightemperature tribology and solidlubrication of advanced ceramics[J].Key Engineering Materials,2008,368-372:1088-1091.
- [4]Murakami T,OuyangJ H,Umeda K,et al.High-temperaturefriction properties of BaSO4and SrSO4powderfilmsformed on Al2O3andstainless steel substrates[J].Mater Sci Eng A,2006(432):52-58.
- [5]Ouyang J H,Murakami T,Sasaki S,et al.Spark plasma sintered ZrO2(Y2O3)-Al2O3-SrSO4self-lubricating nanocomposites for hightemperature tribologicalapplications[J].Key Engineering Materials,2007(336-338):1429-1432.
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