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Phase Changes in a Leucite‐Containing Dental Porcelain Frit
Author(s) -
Mackert J. Rodway,
Butts Michael B.,
Morena Robert,
Fairhurst Carl W.
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.tb04754.x
Subject(s) - leucite , frit , thermal expansion , materials science , dental porcelain , composite material , compatibility (geochemistry) , phase (matter) , mineralogy , ceramic , chemistry , organic chemistry
The high average thermal expansion required for thermal compatibility of dental porcelains with their substrate alloys is supplied by the mineral leucite (K 2 O Al 2 O 3 4SiO 2 ). Since leucite is not an equilibrium phase at the composition of component No. 1 of the Weinstein et al. patent, phase changes in this leucitecontaining frit could be responsible for the observed thermally induced changes in dental porcelain expansion behavior. This study sought to explore such phase changes.