beta-SIALON, METHOD FOR MANUFACTURING THE SAME, AND LIGHT-EMITTING DEVICE
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United States of America Patent
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Issued Date -
Dec 13, 2012
app pub date -
Jul 15, 2011
filing date -
Jul 20, 2010
priority date (Note) -
Abandoned
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Abstract
A method for manufacturing β-sialon, including: a mixing process wherein at least one of aluminum oxide and silicon oxide, silicon nitride, aluminum nitride, and europium compound are mixed; a burning process wherein the mixture having undergone the mixing process is heated at the temperature hither than 1950° C. but not exceeding 2200° C. for 10 hours or longer; and a heat treatment process wherein heat treatment is conducted after the burning process at the temperature from 1300° C. to 1600° C. in an atmosphere of inert gas other than nitrogen at the partial pressure of 10 kPa or lower.
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