The effect of applied stress on the densification of a low-temperature cofired ceramic-filled glass system under constrained sintering

被引：0
|
作者：
Chang, Jui-Chuan [1 ]
Jean, Jau-Ho [1 ]
Hung, Yao-Yi [2 ]
机构：
[1] Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
[2] ACX Corp., Hsinchu 30352, Taiwan
来源：
Journal of the American Ceramic Society | 2009年 / 92卷 / 09期
关键词：
The effect of uniaxial stress on the mechanical response and densification behavior of a low-fire borosilicate glass (BSG)+alumina system during constrained sintering of a multilayer BSG+alumina/alumina laminate has been investigated. Compared with free sintering; the pressure-less constrained sintering of BSG+alumina exhibits poorer densification; and larger porous bulk viscosity at a given temperature. This is caused by the in-plane tensile stress and anisotropic development generated in the transverse directions of the laminate during constrained sintering. The applied uniaxial stress required in the thickness direction to densify BSG+alumina under constrained sintering varies in the range of 50-400 kPa at 700-800C. The above results are in agreement with those calculated using the viscous analogy for the constitutive relationships of a porous sintering compact. © 2009 The American Ceramic Society;
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页码：1946 / 1950
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