The effect of heating rate and composition on the properties of spark plasma sintered zirconium diboride based composites

被引：19
|
作者：
Snyder, Alexandra [1 ]
Bo, Zhenyu [1 ]
Hodson, Stephen [2 ]
Fisher, Timothy [2 ]
Stanciu, Lia [1 ]
机构：
[1] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA
[2] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 538卷
基金：
美国国家科学基金会;
关键词：
Spark plasma sintering; Mechanical properties; Carbides; Borides; MECHANICAL-PROPERTIES; OXIDATION-RESISTANCE; DENSIFICATION; MICROSTRUCTURE; STRENGTH; ALPHA-AL2O3; CERAMICS; FIELD;
D O I：
10.1016/j.msea.2012.01.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Five different compositions of ZrB2-SiC-ZrC were prepared and then processed by spark plasma sintering (SPS) to a maximum temperature of 2000 degrees C, with heating rates of 100 degrees C/min and 200 degrees C/min. Grain size, density, Rockwell hardness, flexural strength, and thermal conductivity were evaluated for the processed composites. Adding SiC up to 10 wt.% had a positive effect on densification and strength. Increasing the heating rate promoted densification and less overall grain growth for samples with SiC and ZrC above 15 wt.% each, and had a slight negative effect on densification when these values were at 10%. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：98 / 102
页数：5
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