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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

微波烧结和常压烧结对Al2O3-ZrO2陶瓷磨损行为的影响

张锐1,2; 高濂1; 江琳沁1; 郭景坤1   

  1. 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
  • 收稿日期:2001-05-22 修回日期:2001-07-06 出版日期:2002-05-20 网络出版日期:2002-05-20

Influences of Microwave and Conventional Sintering on the Wear Behavior of Al2O3-ZrO2 Ceramics

ZHANG Rui1,2; GAO Lian1; JIANG Lin-Qin1; GUO Jing-Kun1   

  1. 1. State Key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. Department of Materials Science & Engineer, Zhengzhou University(Noth District), Zhengzhou 450002, China
  • Received:2001-05-22 Revised:2001-07-06 Published:2002-05-20 Online:2002-05-20

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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．

关键词: 微波烧结, 常压烧结, ZTA, 磨损

Abstract: 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 grains, 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.

Key words: microwave, conventional, ZTA, Wear

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