Mechanical properties and plasma erosion resistance of BNp/Al2O3-SiO2 composite ceramics

被引:0
|
作者
段小明 [1 ,2 ]
贾德昌 [1 ]
周玉 [1 ]
杨治华 [1 ]
王玉金 [1 ]
任凤琴 [1 ]
于达仁 [3 ]
丁永杰 [3 ]
机构
[1] Institute for Advanced Ceramics,Harbin Institute of Technology
[2] School of Energy Science and Technology,Harbin Institute of Technology
[3] Key Laboratory of Metal Precision Processing,Harbin Institute of Technology
基金
中国国家自然科学基金;
关键词
BN-Al2O3-SiO2 composite ceramics; microstructures; mechanical properties; plasma erosion resistance;
D O I
暂无
中图分类号
TB332 [非金属复合材料];
学科分类号
摘要
Al2O3-SiO2 system ceramic matrix composites with different volume fractions (10%-60%) of hexagonal BNparticulates (BNp) were prepared by hot-press sintering technique.Phase components,microstructure,mechanical properties and plasma erosion resistance were also investigated.With the increase of h-BNp content,relative density and Vickers’ hardness of the composite ceramics decrease,while the flexural strength,elastic modulus and fracture toughness increase and then decrease.The plasma erosion resistance linearly deteriorated with the increase of BNp content which is mainly determined by the density,crystal structure and atomic number of the elements.
引用
收藏
页码:1462 / 1468
页数:7
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