In-situ hot pressing/solid-liquid reaction synthesis of dense titanium silicon carbide bulk ceramics |
| |
| Authors: | Y Zhou Zhimei Sun Shengqi Chen Y Zhang |
| |
| Affiliation: | (1) Ceramic and Composite Department, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 10015, P. R. China Fax: +86-24-23891320, e-mail: yczhou@imr.ac.cn, CN |
| |
| Abstract: | An in-situ hot pressing/solid-liquid reaction process was developed for the synthesis of dense polycrystalline Ti3SiC2 ceramics using Ti, Si, and graphite powders as starting materials. The present work demonstrated that this process was one
of the most effective and simple methods for the preparation of dense bulk Ti3SiC2 materials. Lattice constants of a=3.068 and c=17.645 are calculated for Ti3SiC2 made through this process. The synthesis temperature influenced the phase composition, microstructure and mechanical properties
of Ti3SiC2 prepared at different temperatures. And bulk materials with flexural strength of 480 MPa and fracture toughness of 7.88 MPa.m1/2 were obtained at 1600°C. The high fracture toughness and strength are discussed based on microstructure analysis.
Received: 31 July 1998 / Accepted: 28 August 1998 |
| |
| Keywords: | Ti3SiC2 synthesis Solid-liquid reaction In-situ formation |
| 本文献已被 SpringerLink 等数据库收录！ |
|
