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Glass formation and properties in the system calcia-gallia-silicaThe glass-forming region in the calcia-gallia-silica system is studied and found to be fairly large, with a density of 3-4 g/cu cm, a refractive index of 1.6-1.73, an Abbe number of 35-58, a thermal expansion coefficient of 6.5-11.5 x 10 to the -7th/deg C, and a Vickers microhardness of 5.2-7.3 GPa. Crystalline phases are identified at the boundary of the glass-forming region. The structural groups in the glass-forming compositions are analyzed by infrared absorption spectroscopy.
Document ID
19910027985
Document Type
Reprint (Version printed in journal)
Authors
Angel, Paul W. (Missouri Univ. Rolla, MO, United States)
Ray, Chandra S. (Missouri Univ. Rolla, MO, United States)
Day, Delbert E. (Missouri-Rolla, University Rolla, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1990
Publication Information
Publication: American Ceramic Society, Journal
Volume: 73
ISSN: 0002-7820
Subject Category
MATERIALS PROCESSING
Funding Number(s)
CONTRACT_GRANT: NAS8-34758
Distribution Limits
Public
Copyright
Other