Spark plasma sintering of TaC and/or CNTs reinforced SiC CMCs

被引：4

作者：

Xie, Qiaoyun ^{[1
]}

Wosu, Sylvanus N. ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Mech Engn, 3700 OHara St,612 Benedum Hall, Pittsburgh, PA 15261 USA

来源：

JOURNAL OF COMPOSITE MATERIALS | 2016年 / 50卷 / 06期

关键词：

Spark plasma sintering; tantalum carbide; carbon nanotubes; silicon carbide ceramic composites; sintering parameters; CARBON NANOTUBES; PRESSURE; MICROSTRUCTURE; DENSIFICATION; COMPOSITES; SPS;

D O I：

10.1177/0021998315580832

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This study focuses on a two-stage spark plasma sintering of TaC and/or carbon nanotubes (CNTs) reinforced SiC ceramic composites. The influence of reinforcements of TaC and CNTs, as well as sintering parameters, such as pressure, heating rate, and temperature, is investigated on the densification behavior and mechanical properties of the TaC-CNTs-SiC system. The results showed that the addition of CNTs increased the densification of SiC from 86% to 99.5% while still maintaining submicron grain size under the sintering parameters of 133?/min, 1800?, and 90MPa pressure. TaC additives did not favor the densification of CNT-SiC ceramics but increased the nano hardness of the composites.

引用

页码：739 / 749

页数：11

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