肖国庆 Likes:

Affiliation of Author(s):

材料科学与工程学院

Journal:

journal of university of science and technology beijing

Key Words:

中文关键字：TiC-Cu金属陶瓷,自蔓延高温合成,显微结构演变,合成机理,燃烧波前沿淬熄法，英文关键字：TiC-Cu cermet, Self-propagating high-temperature s

Abstract:

A mechanism of self-propagating high-temperature synthesis (SHS) of TiC-Cu cermet was studied by means of a combustion front quenching method. Microstructural evolution in the quenched sample was observed using a scanning electron microscope (SEM) with energy dispersive X-ray (EDX) spectrometry, and the combustion temperature were measured. The results showed that the combustion reaction started with a local formation of a Ti-Cu liquid solution and could be described with a dissolution-precipitation mechanism, namely, Ti, Cu and C particles dissolved into the Ti-Cu solution and TiC particles precipitated in the saturated Ti-Cu-C liquid solution. The local formation of the Ti-Cu solution resulted from a solid diffusion between the Ti and Cu particles.

Note:

肖国庆

Co-author:

FengDuan,GangZhang,QunchengFan

First Author:

xiaoguoqing

Indexed by:

Journal paper

Volume:

卷：14

Issue:

期：6

Page Number:

页：568-572

Translation or Not:

no

Date of Publication:

2007-12-01