摘要
采用山形切口对5种陶瓷材料的断裂韧性进行了测试并予评价。试验结果表明,切口的几何尺寸影响着K_(IC)值。适当调整横向压力速度及切口几何尺寸可使裂纹呈稳定型扩展,其测量结果更为可靠。
In this paper, a method--CVNB for measuring fracture toughness, having been applied to 5 different ceramic materials, is offered and evaluated. The results showed that the dimensions and geometry of the notch had effect on the K_(lc) values. By adjusting cross-head speed and regulating the dimensions and geometry of the notch, the stable growth of the crack can be obtained and the result is much more reliable.
出处
《机械工程材料》
CAS
CSCD
1993年第2期48-50,55,共4页
Materials For Mechanical Engineering
基金
瑞典ABB公司援助项目
