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Edge‐Defined Film‐Fed Growth of β‐Alumina and Mg‐Substituted β‐Alumina
Author(s) -
MORRISON A. D.,
STORMONT R. W.,
COCKS F. H.
Publication year - 1975
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.1151-2916.1975.tb18979.x
Subject(s) - materials science , crystal growth , decomposition , enhanced data rates for gsm evolution , chemical engineering , aluminium oxides , mineralogy , high pressure , reactivity (psychology) , composite material , crystallography , chemistry , catalysis , organic chemistry , thermodynamics , medicine , telecommunications , physics , alternative medicine , pathology , computer science , engineering
High Na vapor pressure, peritectic decomposition, and high reactivity of the melt complicate the growth of α‐alumina crystals. These difficulties were overcome by using a high‐pressure (300 psig) growth chamber, Na 2 O‐rich melts, and Ir for all surfaces in contact with the melt. These procedures were combined with the edge‐defined film‐fed growth technique to produce single‐crystal β alumina tubes and ribbons.