Mechanical properties and microstructure of TiB2 ceramic influenced by ZrB2 additive
来源期刊:中国有色金属学报(英文版)2002年第5期
论文作者:王皓 傅正义 辜萍 王为民 袁润章
文章页码:909 - 913
Key words:solid solution; TiB2- ZrB2; mechanical properties; microstructure
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.