STRENGTH CHARACTERISTICS OF STRUCTURAL CERAMICS
STRENGTH CHARACTERISTICS OF STRUCTURAL CERAMICS
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结构陶瓷的强度特性
DOI：
10.2472/jsms.45.12appendix_220
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
T. Hoshide
中科院分区：
文献类型：
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作者：
T. Hoshide
在结构陶瓷中，由于材料加工过程中易产生的变形和裂纹的脆性行为，观察到强度的显著分散。因此，在陶瓷应用于高性能部件的机械设计中，需要有关陶瓷强度特性的信息。本文从统计学的角度对典型陶瓷材料的强度性能进行了综述，重点介绍了陶瓷材料的强度性能。在静态强度方面，首先概述了陶瓷强度的一般特征，然后介绍了影响陶瓷强度的几个因素，如环境、试件几何形状、应力状态和机械加工等。疲劳强度分为静态疲劳和循环疲劳两大类。介绍了陶瓷材料的验证试验，并指出了验证试验中存在的问题。
In structural ceramics, a remarkable scatter of strength is observed due to brittle behavior in deformation and flaws unavoidably formed during material processing. Therefore, information on strength characteristics of ceramics is required for the mechanical design in their applications to high-performance components. In the present paper, the strength properties of typical ceramics are reviewed from statistical aspects, especially. As for the static strength, general features of ceramic strength are first outlined, and then several factors affecting strength, such as environments, specimen geometry, stress state and machining, are described. The fatigue strength is reviewed in two categories of the static and cyclic fatigue. As one of screening procedures to exclude components with a lower strength, the proof testing in ceramics is described and the problems in the testing are also mentioned.