HYDROTHERMAL PROCESSING IN THE WET-CHEMICAL PREPARATION OF MIXED METAL OXIDE CERAMIC POWDERS
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United States of America Patent
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Issued Date -
Oct 21, 2010
app pub date -
Apr 12, 2010
filing date -
Apr 10, 2009
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Abandoned
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Abstract
A method of forming at least partially crystalline ceramic powder includes providing mixed metal oxide particles in an aqueous suspension in a hydrothermal treatment vessel, heating the aqueous suspension at a temperature of at least 150° C. at a treatment pressure of at least 200 psi, and adding an aqueous solution having a temperature of not greater than 100° C. to the hydrothermal treatment vessel while heating and while releasing steam from the hydrothermal treatment vessel.
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