85Al2O3/SiC纳米复合陶瓷的耐磨损性能研究

1.天津大学材料学院先进陶瓷加工与工程教育部国家重点实验室,天津,300072

2.天津大学材料学院先进陶瓷加工与工程教育部国家重点实验室,天津,300072

3.School of Engineering,Coventry University,Priory Street,Coventry,CV1 5FB,UK

基金项目: 国家高技术研究发展计划(863计划)(2002AA332080)

Erosive Wear Resistance of 85Al2O3/SiC Nanocomposites

通过控制无压埋烧条件制备了85Al2O3/SiC纳米复合陶瓷,重点研究了纳米碳化硅对复合陶瓷耐磨损性能的影响.结果表明,纳米复合陶瓷表现出显著优于基体材料的表面耐磨损特性.SEM分析表明,纳米碳化硅的加入使材料的磨损去除机制发生了改变,由大范围的深层晶粒拔出变为小尺寸的浅层去除和塑性变形.

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