On the estimation of strength properties of porous ceramic coatings
On the estimation of strength properties of porous ceramic coatings
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多孔陶瓷涂层强度性能的评估
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
S. Psakhie
中科院分区：
文献类型：
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作者：
I. Konovalenko;A. I. Dmitriev;A. Smolin;S. Psakhie
提出了一种估算多孔陶瓷涂层强度性能的方法。该方法是基于对涂层压痕的初步试验结果的分析与缺陷的不同大小和深度的发生。采用离散描述（移动元胞自动机方法）和连续描述（有限差分方法）相结合的计算机模拟方法研究了涂层的强度特性。发现涂层中孔隙的长度和深度等参数与涂层断裂的临界应力之间存在一定的关系。该方法可用于研究材料表面层的强度特性和预测接触区的临界应力。
A method for estimating the strength properties of a porous ceramic coating was proposed. The method is based on the analysis of preliminary test results on indentation of coatings with defects of varying size and depth of occurrence. The strength properties of the coating were studied by computer simulation combining the discrete description (the movable cellular automata method) and continuous description (the finite difference method). Relationships were found between the parameters of a pore such as its length and depth of occurrence in the coating and the critical stress corresponding to fracture of the coating. The proposed method can be used to study the strength properties of material surface layers and to predict the critical stress in a contact region.