Effective elastic moduli of ceramics with pores

被引:0
|
作者
Wang, FH [1 ]
Gou, WX
Zheng, XL
Lu, MX
机构
[1] Northwestern Polytech Univ, Dept Engn Mech, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Dept Mat Sci & Engn, Xian 710072, Peoples R China
[3] Xian Tubular Goods Res Ctr, Xian 710061, Peoples R China
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A contribution is given to the theoretical research on the stiffness of ceramic materials, under the approximation of the average stress field, the relation E = E-o(1-p)/(1 + 2.5p) is derived to describe the dependence of the modulus of elasticity on porosity. The prediction of this model is consistent with the experimental data from several ceramics such as reacting sintered Si3N4, MgO and MgAl2O3.
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页码:286 / 288
页数:3
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