Synthesis of a metallic ceramic -Ti3SiC2 by PDS process and its properties

被引：0

作者：

Sun, ZM ^{[1
]}

Hashimoto, H ^{[1
]}

Zhang, ZF ^{[1
]}

Yang, SL ^{[1
]}

Abe, T ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, AIST Tohoku, Sendai, Miyagi 9838551, Japan

来源：

SOLID-STATE CHEMISTRY OF INORGANIC MATERIALS IV | 2003年 / 755卷

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Powder mixtures of Ti/Si/C, Ti/SiC/C, Ti/Si/TiC, Ti/SiC/TiC and Ti/TiSi2/TiC were used for the synthesis of Ti3SiC2 by using a pulse discharge sintering (PDS) process. The Ti/Si/TiC powder was found to be the best among the five powder mixtures for the Ti3SiC2 synthesis. The highest content of Ti3SiC2 can be improved to about 99wt% at the sintering temperature of 1300degreesC for 15 minutes. The relative density of all the synthesized samples is higher than 98-99% at the sintering temperature above 1275degreesC. The nearly single phase Ti3SiC2 was found to show plastic deformation at room temperature and a good machinability. Both electrical and thermal conductivity were found to be more than two times of the value of a control pure Ti sample. The high-temperature mechanical tests confirmed that the Ti3SiC2 samples synthesized by the PDS process displayed a comparable performance with those fabricated by the other techniques.

引用

页码：179 / 184

页数：6

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