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Initial Temperatures of Zirconia Phase Changes and Solid‐Solution Reactions
Author(s) -
SMOOT THOMAS W.,
RYAN JOSEPH R.
Publication year - 1963
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.1151-2916.1963.tb14624.x
Subject(s) - cubic zirconia , magnesium , yttria stabilized zirconia , solid solution , materials science , phase (matter) , mineralogy , diffraction , chemical engineering , metallurgy , chemistry , ceramic , organic chemistry , physics , optics , engineering
Mixtures of zirconia with yttria, magnesia, calcia, ceria, and combinations of calcia and magnesia were investigated by X‐ray diffraction at temperatures up to 2870°F. The initial stabilizing reactions occurred at temperatures ranging between 900° and 2700°F. Magnesia apparently showed the lowest temperature of initial reaction and yttria the highest. Combinations of calcia and magnesia showed initial solid solution at temperatures lower than calcia but higher than magnesia, although magnesia seemed to be the first to react. Inconclusive evidence indicated that some exsolution occurred in some combinations when temperatures were lowered.