Residual Stress in Siliceous Glass Between Mullite Crystals |
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| Authors: | Kazuo Yamana &#; Masayasu Tokonami Kohji Nobugai Nobuo Morimoto† Mitsue Koizumi Isamu Shindo |
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| Affiliation: | Institute of Scientific and Industrial Research, Osaka University, Suita, Osaka 565, Japan;National Institute for Research in Inorganic Materials, Sakura-mura, Nihari-gun, Ibaraki 305, Japan |
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| Abstract: | A birefringence of siliceous glass, which is coexisting with mullite crystals, was studied by an optical polarizing microscope. The cause of the birefringence was assumed to be the residual stress induced by a large contraction difference between the mullite and glass on cooling. The stress has been evaluated to be as high as—0.3 GPa, and to correspond to the elastic one which began to develop at the glass transition point. |
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