Synthesis and microstructural features of ZrB2-SiC-based composites by reactive spark plasma sintering and reactive hot pressing

被引：79

作者：

Wu, Wen-Wen

Zhang, Guo-Jun ^{[1
]}

Kan, Yan-Mei

Wang, Pei-Ling

Vanmeensel, Kim

Vleugels, Jozef

Van der Biest, Omer

机构：

[1] Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 200049, Peoples R China

[3] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Louvain, Belgium

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 04期

基金：

中国国家自然科学基金;

关键词：

synthesis; microstructure; ultrahigh-temperature ceramics;

D O I：

10.1016/j.scriptamat.2007.04.025

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Four kinds of composites, ZrB2-SiC, ZrB2-SiC-ZrC, ZrB2-SiC-ZrN and ZrB2-SiC-AlN, were synthesized in situ via reactive hot pressing (RHP) and reactive spark plasma sintering (R-SPS), using Zr, Si, B4C, BN and Al as raw materials. The synthesis process plays a critical role in the microstructural features of the composites obtained. The R-SPS process can lead to a more homogeneous and finer microstructure due to its high heating rates and short holding time, while the RHP process is likely to result in coarse microstructures due to a long enough holding time for grains growth. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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收藏

页码：317 / 320

页数：4

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