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Formation and Crystallization of Yttrium Aluminosilicate Glasses Containing Calcium Oxide
Author(s) -
Makishima Akio,
Kubo Hajime,
Shimohira Takajjro
Publication year - 1986
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1986.tb07460.x
Subject(s) - yttrium , aluminosilicate , hexagonal prism , materials science , crystallization , oxide , mineralogy , calcium aluminosilicate , thermal expansion , crystal (programming language) , aluminium oxides , chemical engineering , hexagonal crystal system , crystallography , chemistry , metallurgy , biochemistry , catalysis , programming language , computer science , engineering
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 Ca 4 Y 6 0(Si0 4 ) 6 .