"The purpose of this work was to investigate the properties of Y₂O₃-Al₂O₃-SiO₂-MxOy glasses. Many MxOy components were tested, but TiO₂ and B₂O₃ proved the most interesting. Glasses containing 5 to 25 wt % TiO₂ were melted and found to have improved chemical durability and a higher refractive index and density than the eutectic Y₂O₃-Al₂O₃-SiO₂ starting glass. These glasses could be crystallized to form an opaque glass ceramic. Glasses containing B₂O₃ were formed by exchanging SiO₂ with B₂O₃ while holding the Y₂O₃ and Al₂O₃ content constant. The density, hardness, refractive index, transformation temperature, softening temperature and chemical durability decreased with increasing B₂O₃ content, while the thermal expansion coefficient increased"--Abstract, page 1.
Day, D. E.
Howard, Scott A.
Kohser, Ronald A.
Materials Science and Engineering
M.S. in Ceramic Engineering
University of Missouri--Rolla
vii, 47 pages
© 1987 Amy Lee Applewhite, All rights reserved.
Thesis - Restricted Access
Glass -- Heat treatment
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Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://merlin.lib.umsystem.edu/record=b2011077~S5
Applewhite, Amy Lee, "Property survey of Y₂O₃-Al₂O₃-SiO₂-MₓOy glasses" (1987). Masters Theses. 513.
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