Mechanical Properties of ZrO2-LaMgAl11O19 Ceramics

摘要：

　　ZrO2 ceramics have been widely used in many fields with its excellent physical and chemical properties,but the mechanical properties of YSZ ceramics,especially the fracture toughness,decline caused by the failure of the phase transformation toughening at high temperature.In this investigation,plate-like LaMgAl11O19 toughened ZrO2 ceramics were prepared by pressureless sintering at 1550 ℃ for 3 h in air.The bulk density of the sintered samples are between 5.5 to 6.0 g/cm3,and the relative density are above 93%.The mechanical properties of the ZrO2-LaMgAl11O19 ceramics were studied systematically at room temperature.The flexure strength and fracture toughness of ZrO2-LaMgAl11O19 ceramic are 811.8 MPa and 13.9 MPa·m1/2 with the LMA addition of 2 wt%.

关键词： ZrO2-LaMgAl11O19 ceramics Mechanical properties

作者: Min Xin Fang Minghao Liu Yangai Huang Zhaohui Liu Fengjiao Tang Chao

作者单位: School of Materials Science and Technology,China University of Geosciences(Beijing),Beijing 100083,P School of Materials Science and Technology,China University of Geosciences(Beijing),Beijing 100083,P

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 455-458

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）