Mechanical characterization of ceramics by means of a 3D defect analysis
Mechanical characterization of ceramics by means of a 3D defect analysis
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DOI：
10.1016/j.ceramint.2014.10.055
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发表时间：
2015-03-01
影响因子：
5.2
通讯作者：
Singheiser, L.
中科院分区：
文献类型：
--
作者：
Pecanac, G.;Malzbender, J.;Singheiser, L.
对 CaTi0.9Fe0.1O3-d 陶瓷膜材料进行了三维缺陷研究，作为计算机断层扫描在微观结构分析和机械表征中使用的模型研究。该研究证明了与本文中介绍的常用断口研究相比的许多优点。通过计算机断层扫描获得的数据进一步用于基于有限元分析的材料行为的机械建模和预测，其中还通过改变缺陷的位置和加载配置来分析应力状态。通过微观结构研究、机械实验和断口分析验证了这些技术获得的结果。测定了测试材料的断裂强度并与其他潜在的膜材料进行比较。 (C) 2014 Elsevier Ltd 和 Techna Group S.r.l.版权所有。
A three-dimensional defect study was carried out on CaTi0.9Fe0.1O3-d ceramic membrane material as a model study for the use of computed tomography in both microstructural analysis and mechanical characterization. The study demonstrated many advantages over the commonly used fractographic study which is also presented in this paper. The data obtained by computed tomography were further used for mechanical modeling and prediction of material's behavior based on finite element analysis, where the stress state was also analyzed by varying the defect's position and the loading configuration. The results obtained by these techniques were validated by microstructural studies, mechanical experiments and fractographic analysis. The fracture strength of the tested material was determined and compared to other potential membrane materials. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.