Formation and Crystallization of Yttrium Aluminosilicate Glasses Containing Calcium Oxide |
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| Authors: | Akio Makishima Hajime Kubo Takajjro Shimohira |
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| Affiliation: | National Institute for Research in Inorganic Materials, Namiki 1-1, Sakura-mura, Niihari-gun, Ibaraki-ken, 305 Japan |
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| Abstract: | Formation of yttrium aluminosilicate glasses containing calcium oxide from batches melted at 1550°C was investigated. Densities and thermal expansion coeflcients were measured for some glasses. In a specific compositional region, crystals with a needlelike habit were observed in the glass matrix. A crystal in the form of a tubular hexagonal prism was identified as Ca4Y60(Si04)6. |
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