Spark plasma sintering of LaB6-(Ti, Zr)B2 composites

被引：7

作者：

Wang, X. ^{[1
]}

Zhang, J. X. ^{[1
]}

Yang, X. Y. ^{[1
]}

Hu, K. ^{[1
]}

Zhang, J. W. ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China

来源：

ADVANCES IN APPLIED CERAMICS | 2017年 / 116卷 / 03期

基金：

中国国家自然科学基金;

关键词：

LaB6-(Ti; Zr)B-2; composite; spark plasma sintering; microstructure; mechanical property; MECHANICAL-PROPERTIES; INDENTATION FRACTURE; SYSTEM;

D O I：

10.1080/17436753.2016.1264139

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The LaB6-(Ti-,Ti- Zr)B-2 composite was fabricated from LaB6, TiB2 and ZrB2 powders by spark plasma sintering (SPS) at 1600-1900 degrees C holding for 5min under 40MPa. The densification behaviour, microstructure, mechanical properties were investigated. The complete solid solution phase of (Ti, Zr)B-2 was identified. The morphologies of LaB6 and (Ti, Zr)B-2 grains were equiaxed and elongated, respectively. The highest relative density of 98.43% and Vickers hardness of 19.56GPa were obtained at 1900 degrees C. The fracture toughness of 4.43MPam(1/2) was obtained at 1800 degrees C.

引用

页码：132 / 137

页数：6

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