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Preparation of Bi 4 Ti 3 O 12 Powders in the Presence of Molten Salt Containing LiCl
Author(s) -
KIMURA TOSHIO,
KANAZAWA TAKANOBU,
YAMAGUCHI TAKASHI
Publication year - 1983
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.1151-2916.1983.tb10099.x
Subject(s) - molten salt , potassium , salt (chemistry) , inorganic chemistry , materials science , flux (metallurgy) , chloride , flux method , reaction mechanism , chemistry , nuclear chemistry , crystallography , metallurgy , catalysis , organic chemistry , single crystal
The reaction between Bi 2 O 3 and TiO 2 in molten LiCl‐KCl was examined with special emphasis on the reaction mechanism and the size of Bi 4 Ti 3 O 12 particles. The oxides reacted with LiCl to form an intermediate compound, which changed into Bi 4 Ti 3 O 12 on extended heating. Potassium chloride retarded the reaction between the oxides and LiCl and promoted the change from the intermediate compound to Bi 4 Ti 3 O 12 . Bi 4 Ti 3 O 12 particles prepared in the flux were platelike, irrespective of the preparation conditions, but their size depended on reaction temperature and time, the ratio of LiCl to KCl, and the amount of flux.