PROPERTIES OF NEW TiC/TiB2/Fe-Al CERMET ALLOY

被引：0

作者：

Nakayama, Hiroyuki ^{[1
]}

Tada, Shuji ^{[1
]}

Mikami, Masashi ^{[1
]}

Ozaki, Kimihiro ^{[1
]}

Kobayashi, Keizo ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Moriyama Ku, Nagoya, Aichi 4638560, Japan

来源：

THERMEC 2009, PTS 1-4 | 2010年 / 638-642卷

关键词：

thermal conductivity; microstructure; transmission electron microscope; hardness; COMPOSITES;

D O I：

10.4028/www.scientific.net/MSF638-642.2138

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effect of TiB(2) substitution on thermal conductivity and hardness in TiC / Fe-Al cermets was investigated The (70-x)TIC / xTiB(2) / 26Fe-4Al mass % cermets were fabricated by mechanical milling and subsequent pulsed current sintering method. The high relative density compacts was formed by sintering at 1423 K under 25 MPa for 60 s. The sintered materials were mainly composed of TiC, TiB(2) and Fe-Al intermetallic compound. In addition, small amounts of Fe(2)B surrounding TiB(2) were formed. The thermal conductivity of the sintered compact lineally increased with increasing TiB(2) volume fraction. However, the hardness of the sintered compacts of x = 20 - 40 were higher than that of x = 0 Therefore, the substitution of TiC to TiB(2) in the TiC / Fe-Al-based cermet is effective to improve the thermal conductivity without the degradation of hardness.

引用

页码：2138 / 2141

页数：4

共 6 条

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