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Topotactic Growth of β‐Alumina on α‐Alumina
Author(s) -
Susnitzky D. W.,
Carter C. B.
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.tb04727.x
Subject(s) - crystallite , materials science , transmission electron microscopy , grain boundary , alumina ceramic , aluminium oxides , potassium , beta (programming language) , phase (matter) , chemical engineering , mineralogy , crystallography , microstructure , metallurgy , chemistry , nanotechnology , catalysis , ceramic , biochemistry , organic chemistry , computer science , engineering , programming language
Thin foils of polycrystalline α‐alumina were reacted with a potassium‐rich vapor at ≤900°C. Potassium β‐alumina formed along α‐alumina grain boundaries and protruded from holes in the foils. Conventional transmission electron microscopy was used to analyze the α‐alumina/β‐alumina phase boundary for possible orientation relations.