期刊
SCRIPTA MATERIALIA
卷 62, 期 10, 页码 802-805出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2010.02.002
关键词
Spark plasma sintering; Heating rate; Microstructure; ZrB2-SiC; Yb2O3
类别
资金
- Flanders China [BIL 07/06]
- Chinese Academy of Sciences
- National Natural Science Foundation of China [50632070]
- Science and Technology Commission of Shanghai [08520707800, 09ZR1435500]
The influence of the spark plasma sintering (SPS) heating rate on densification, microstructure and strength of ZrB2-20 vol.% SiC composites with or without 5 vol. A, Yb2O3 addition was assessed. A low heating rate promoted densification, induced grain growth and slightly increased the strength in the Yb2O3-free ceramics, whereas the low heating rate inhibited the densification, maintained the grain size and greatly decreased the strength in the Yb2O3-doped composites. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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