Process for making ultra-fine stabilized zirconia particles
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United States of America Patent
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Feb 10, 1998
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app pub date -
Jun 27, 1995
filing date -
Sep 27, 1993
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Abstract
A process for producing ultra-fine particles of calcia-stabilized zirconia in which a precursor mixture (which contains from about 80 to about 96 mole percent of zirconium ion, from about 20 to about 4 mole percent of calcium ion, a nitrogen-containing fuel, and a solvent) is dried and then subjected to a temperature of from about 275 to about 750 degrees centigrade and an atmosphere with a relative humidity of less than about 60 percent, thereby causing the dried particles to react in a vigorous manner and to form a combusted powder.
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