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.