复相添加剂/3Y-TZP复合增韧氧化铝陶瓷的研究  

Study on Multitoughening Al_2O_3 Ceramics with Composite 3Y-TZP Additives

作　　者：荣守范[1] 吉泽升[1] 张敬强[2] 朱永长[2] 

机构地区：[1]哈尔滨理工大学,黑龙江哈尔滨150040 [2]佳木斯大学,黑龙江佳木斯154007

出　　处：《稀有金属材料与工程》2007年第A01期279-281,共3页Rare Metal Materials and Engineering

基　　金：黑龙江省自然科学基金(2005-11);黑龙江省教育厅基金项目(10551306)

摘　　要：利用复相添加剂和3Y-TZP的叠加作用,对氧化铝陶瓷的增韧机制和途径进行了研究。结果表明:复相添加剂有助于Al2O3/3Y-TZP复合材料中氧化铝晶粒的异向生长,其增韧效果与3Y-TZP产生了叠加效应。实验材料密度接近理论密度;抗弯强度556.35MPa;断裂韧性6.73MPa.m1/2;综合力学性能明显提高。By means of composite additives and 3Y-TZP interaction, the toughness mechanism and methods of Al2O3 ceramics were studied. The results show that composite additives, interacting with 3Y-TZP, prompt the anisotropic growth of grain, whose strengthen toughness effect in Al2O3/3Y-TZP composite ceramics. Experimental material density is near to theoretical parameters, bending strength is 556.35 MPa and fracture toughness is 6.73 MPa.m^1/2. Synthesis dynamics properties are obviously improved.

关 键 词：复合增韧 添加剂 氧化铝陶瓷 显微组织 力学性能 

分 类 号：TQ174.1[化学工程—陶瓷工业]