无机材料学报2001，Vol.16Issue(2)：256-261,6.
含碳添加剂Al2O3基陶瓷复合材料的增韧机理
Toughening Mechanisms of Al2O3/TiC Ceramic Composite with Carbon Additive
许崇海 1黄传真 2李兆前 3艾兴2
作者信息
- 1. 山东轻工业学院机电工程系,
- 2. 山东大学机械工程学院,
- 3. 山东省经济贸易委员会,
- 折叠
摘要
Abstract
With carbon as an additive,the fracture toughness of Al2O3/TiC ceramic material fabricated by hot pressing technology is increased by 20% than that of Al2O3/TiC composite without any carbon added. The results of theoretical and experimental analyses show that the existing of weak interfaces in the ceramic material is one of the effective approaches to achieve higher fracture toughness. The added carbon,existing as a form of graphite,can result in not only the formation of spontaneous microcracks but also the formation of weak interfaces. As a result of the comprehensive integration and synergism of varieties of single toughening mechanisms such as crack bridging,crack branching and crack defection etc.,the fracture toughness of Al2O3/TiC ceramic material can be enhanced obviously.关键词
陶瓷材料/氧化铝/碳/添加剂/增韧机理分类
化学化工引用本文复制引用
许崇海,黄传真,李兆前,艾兴..含碳添加剂Al2O3基陶瓷复合材料的增韧机理[J].无机材料学报,2001,16(2):256-261,6.
