Al_2O_3含量对ZrO_2/Al_2O_3陶瓷材料微观结构和力学性能的影响  

The effect of Al_2O_3 content on microstructure and mechanical property of cramics ZrO_2/Al_2O_3

作　　者：黄传真[1] 孙静[1] 刘含莲[1] 邹斌[1] 王随莲[1] 谷美林[1] 

机构地区：[1]山东大学机械工程学院先进射流工程技术研究中心,济南250061

出　　处：《粉末冶金技术》2005年第5期323-326,共4页Powder Metallurgy Technology

基　　金：国家自然科学基金(50275086);教育部高等学校博士学科点专项科研基金(20030422012);山东省优秀中青年科学家科研奖励基金(03BS153)资助

摘　　要：以陶瓷纺织剪刀为应用目标,开发成功ZrO2/Al2O3复相陶瓷材料,并对其微观结构和力学性能进行了研究。结果表明,随着Al2O3含量的增加,材料晶粒逐渐减小,材料中t相ZrO2的含量呈上升趋势,这有利于材料断裂韧度和横向断裂强度的提高;当Al2O3含量(质量分数)为20%左右时,ZrO2/Al2O3复相陶瓷材料的综合力学性能最佳。The composite ceramic material ZrO2/Al2O3 has been successfully developed to produce scissors for textile It is found from the microstructure and the mechanical properties that the grain size decreases and the content of t-ZrO2 increases with the increase of the alumina content, which is beneficial to the improvement of the fracture toughness and transverse rupture strength of the ZrO2/Al2O3 ceramics. The optimization of the mechanical property of ZrO2/Al2O3 is obtained as the alumina content is about 20% in term of mass.

关 键 词：三氧化二铝 二氧化锆 陶瓷材料 微观结构 力学性能 材料断裂韧度 横向断裂强度 质量分数 纺织剪刀 

分 类 号：TF125.4[冶金工程—粉末冶金]