%0 Journal Article
%T Microstructure and Mechanical Properties of Hot-pressed TiB2 Ceramics<br>热压烧结TiB2陶瓷的显微结构和力学性能研究
%A LUO Xue-Tao
%A XIE Xiao-Lin
%A YUAN Run-Zhang
%A <br>罗学涛
%A 谢小林
%A 袁润章
%J 无机材料学报
%D 2000
%I Science Press
%X TiB2 ceramics with Y2O3-Al2O3 as sintering aids were fabricated by hot-pressing. The effects of sintering temperature, holding time, and crystallization annealing on microstructure and mechanical properties were investigated. The experimental results show that the flexural strength and fracture toughness of TiB2 ceramics decrease and the weight loss increases with sintering temperature rising up; with holding time prolonged, the uniformity of microstructure decreases and this is disadvantageous to the mechanical properties. The grain diameter has a significant influence on the mechanical properties of TiB2 ceramics. The crystallization annealing can result in YAG phase from grain boundaries and enhance the flexural strength at high temperature of TiB2 ceramics.
%K TiB2 ceramics
%K microstructure
%K mechanical properties
%K crystallization annealing<br>显微结构
%K 力学性
%K 晶化处理
%K 硼化钛陶瓷
%K 热压烧结
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=0DC6245E3A53B510&yid=9806D0D4EAA9BED3&vid=23CCDDCD68FFCC2F&iid=38B194292C032A66&sid=1918ADDC93A85779&eid=6313C162FF75889A&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=4&reference_num=11