共 23 条
Densification behavior and microstructure of spark plasma sintered ZrB2-based composites with SiC particles
被引:47
作者:
Ikegami, Masahide
[2
]
Guo, Shuqi
[1
]
Kagawa, Yutaka
[1
,2
]
机构:
[1] Natl Inst Mat Sci, Hybrid Mat Unit, Tsukuba, Ibaraki 3050047, Japan
[2] Univ Tokyo, Res Ctr Adv Sci & Technol, Meguro Ku, Tokyo 1538505, Japan
关键词:
ZrB2;
Densification;
Microstructure;
Spark plasma sintering;
HIGH-TEMPERATURE CERAMICS;
MECHANICAL-PROPERTIES;
PHYSICAL-PROPERTIES;
OXIDATION;
ZRB2;
D O I:
10.1016/j.ceramint.2011.08.003
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 densification behavior and microstructure of spark plasma sintered ZrB2-based composites with SiC particles were examined. The effects of the amount and size of the SIC particles added were assessed. The results indicated that sinterability of the composites was improved by the addition of SiC compared with single-phase ZrB2 ceramics. This improvement depended on the effects of the amount and size of SIC particles added. Relative densities exceeding 98% were obtained for ZrB2-SiC powders sintered at 1900 degrees C for 2 min under a pressure of 30 MPa. The microstructure of the resulting composites was fine and homogeneous, and the average grain size of ZrB2 decreased with increase in the amount of SiC and with decrease in SiC particle size. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:769 / 774
页数:6
相关论文