Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 12    No. 5    October 2002

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Mechanical properties and 
microstructure ofTiB2 
ceramic influenced by ZrB2 additive
WANG Hao(王  皓), FU Zheng-yi(傅正义),
 GU Ping(辜  萍), WANG Wei-min(王为民),
 YUAN Run-zhang(袁润章)

State Key Laboratory of Advanced Technology for
 Materials Synthesis and Processing, 
Wuhan University of Technology, Wuhan 430070, China

Abstract:Since some transition metal diborides have the same crystal structure with TiB2, which can react with TiB2 to form solid solution by adequate technique. With ZrB2 used as additive, the TiB2-ZrB2 solid solution was prepared by hot pressing. The effects of additive content on mechanical properties of composite were investigated. The microstructure analyzing were employed by EPMA, SEM and TEM. It is shown that TiB2 can partly form solid solution with ZrB2 and redound to gain uniform grains, which results in the increase of mechanical properties.

 

Key words:  solid solution; TiB2- ZrB2; mechanical properties; microstructure

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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