HYDROTHERMAL PROCESS FOR MAKING BARIUM TITANATE POWDERS

A hydrothermal process for making barium titanate powders. The process utilizes a thawed hydrated titanium oxide gel as a titanium source for the hydrothermal reaction. The process includes mixing the thawed hydrated titanium oxide gel and a barium source in a reaction chamber to form a hydrothermal...

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Bibliographic Details
Main Author KERCHNER, JEFFREY, ALLEN
Format Patent
LanguageEnglish
French
German
Published 11.09.2002
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
CONCRETE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:A hydrothermal process for making barium titanate powders. The process utilizes a thawed hydrated titanium oxide gel as a titanium source for the hydrothermal reaction. The process includes mixing the thawed hydrated titanium oxide gel and a barium source in a reaction chamber to form a hydrothermal reaction mixture. The temperature of the hydrothermal reaction mixture in the reaction chamber is increased to a reaction temperature to form a barium titanate particle suspension. The particle suspension is then cooled to room temperature. The resulting barium titanate particles, preferably, have a submicron particle size.
Bibliography:Application Number: EP19990930842