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Thermal Expansions and Chemical Durabilities of Yttria–Aluminosilicate Glasses Containing Na 2 O and ZrO 2
Author(s) -
Makishima Akio,
Hara Tatsuo
Publication year - 1991
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.1151-2916.1991.tb06901.x
Subject(s) - aluminosilicate , thermal expansion , materials science , mineralogy , yttria stabilized zirconia , indentation hardness , analytical chemistry (journal) , chemical composition , composite material , chemistry , cubic zirconia , microstructure , ceramic , organic chemistry , catalysis , biochemistry , chromatography
Properties of glasses in the system Y 2 O 3 –Al 2 O 3 –SiO 2 containing Na 2 O and ZrO 2 were investigated. The difference between the thermal expansion coefficients (Δα) at temperatures above T g and those below T g , microhardness, density, and chemical durability were measured in relation to the Al 2 O 3 /Y 2 O 3 molar ratio. These glasses were found to have a smaller value of Δα than that of a commercial coating glass.