Elastic properties of spark plasma sintered (SPSed) ZrB2-ZrC-SiC composites

被引：50

作者：

Guo, Shuqi ^{[1
]}

Kagawa, Yutaka ^{[1
,2
]}

Nishimura, Toshiyuki ^{[3
]}

Tanaka, Hidehiko ^{[3
]}

机构：

[1] Natl Inst Mat Sci, Composites & Coatings Ctr, Tsukuba, Ibaraki 3050047, Japan

[2] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538505, Japan

[3] Natl Inst Mat Sci, Nanoceram Ctr, Tsukuba, Ibaraki 3050044, Japan

来源：

CERAMICS INTERNATIONAL | 2008年 / 34卷 / 08期

关键词：

ZrB2-ZrC-SiC composites; Elastic moduli; Spark plasma sintering; Soundwave velocity; Si3N4 and AlN additives;

D O I：

10.1016/j.ceramint.2007.06.010

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：

This study investigates the elastic moduli of ZrB2-ZrC-SiC (ZZS) composites with or without AlN and Si3N4 additives consolidated by spark plasma sintering. The effect of the additives on the properties is assessed. The soundwave velocities in the longitudinal and transverse modes were measured. The elastic moduli were calculated from the sound velocities and densities. The results indicate that the elastic moduli of ZrB2-ZrC-SiC materials depend on additives and porosity. This dependence is described by a linear relation between the elastic moduli and the longitudinal soundwave velocity. The obtained elastic moduli of the fully dense ZrB2-ZrC-SiC materials with AlN and Si3N4 additives are the following: E = 459 GPa, G = 196 GPa, nu = 0.17 for ZZS, E = 418 GPa, G = 178 GPa, nu = 0.18 for ZZS + AlN, and E = 462 GPa, G = 197 GPa, nu = 0.17 for ZZS + Si3N4. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1811 / 1817

页数：7

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