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

被引：10

作者：

Duan Xiao-ming ^{[1
,2
]}

Jia De-chang ^{[1
]}

Zhou Yu ^{[1
]}

Yang Zhi-hua ^{[1
]}

Wang Yu-jin ^{[1
]}

Ren Feng-qin ^{[1
]}

Yu Da-ren ^{[3
]}

Ding Yong-jie ^{[3
]}

机构：

[1] Harbin Inst Technol, Inst Adv Ceram, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Key Lab Met Precis Proc, Harbin 150001, Peoples R China

[3] Harbin Inst Technol, Sch Energy Sci & Technol, Harbin 150001, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2013年 / 20卷 / 06期

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; BORON NITRIDE COMPOSITES; IMPULSE HALL THRUSTERS; WALL MATERIAL; MICROSTRUCTURE; NANOCOMPOSITES; FABRICATION;

D O I：

10.1007/s11771-013-1635-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Al2O3-SiO2 system ceramic matrix composites with different volume fractions (10%-60%) of hexagonal BN particulates (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

页码：1462 / 1468

页数：7

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