微波烧结和常压烧结对Al_2O_3-ZrO_2陶瓷磨损行为的影响  

Influences of Microwave and Conventional Sintering on the Wear Behavior of Al_2O_3-ZrO_2 Ceramics

作　　者：张锐[1,2] 高濂[1] 江琳沁[1] 郭景坤[1] 张锐 

机构地区：[1]中国科学院上海硅酸盐研究所国家重点实验室,上海200050 [2]郑州大学(北校区)材料科学与工程系,郑州450002

出　　处：《无机材料学报》2002年第3期621-626,共6页Journal of Inorganic Materials

基　　金：清华大学新型陶瓷和精细工艺国家重点实验室基金资助(X.GZ9910);河南省自然科学基金;河南省模具;材料工程及装备重点实验室基金资助

摘　　要：采用多模微波烧结系统和常压烧结,对Ａｌ２Ｏ３－ＺｒＯ２复合材料的基本性能进行了研究,提出了相关的磨损机理．与常压烧结相比,微波烧结可以提高ＺＴＡ陶瓷的密度、强度和韧性,使其结构均匀,耐磨性提高．常压烧结样品的磨损主要是晶粒铲平、磨屑填充体内气孔形成光滑的磨损界面;而微波烧结ＺＴＡ陶瓷主要是界面晶粒剥离脱落磨损．载荷的增加使磨损量增大．The multi-mode microwave system and conventional sintering were carried out. Properties of Al2O3-ZrO2 composites were investigated, relative wear mechanisms were proposed with regard to the processing approaches, Compared with the conventional results, microwave processed ZTA ceramics appear with the improved relative density, fracture toughness and bending strength, the developed microwave structure, and the ameliorated wear resistance. The wear for the conventional ZTA specimens are mainly caused by the shovel of the interface gains, the porosity is filled by the debris and the smooth wear track is achieved; whereas interface grains in microwave specimens are basically swept out. The incremental loads accelerate the wear.

关 键 词：微波烧结 常压烧结 Al2O3-ZrO2陶瓷 磨损行为 ZTA 氧化铝 氧化锆 复合陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业] TQ174.65[化学工程—硅酸盐工业]