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METHOD FOR SYNTHESIZING OF BLACK CUBIC ZIRCONIA SINGLE CRYSTALS PERFORMING HEAT TREATMENT IN CARBON REDUCTION ATMOSPHERE
METHOD FOR SYNTHESIZING OF BLACK CUBIC ZIRCONIA SINGLE CRYSTALS PERFORMING HEAT TREATMENT IN CARBON REDUCTION ATMOSPHERE
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机译:碳还原气氛中进行热处理的黑色立方氧化锆单晶的合成方法
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摘要
PURPOSE: A method for synthesizing of black cubic ZrO2 single crystals is provided to produce massively articles of superior quality by performing heat treatment in a carbon reduction atmosphere. CONSTITUTION: A heat treatment process is performed in the carbon reduction atmosphere. Any one of graphite, carbon, coal, charcoal, briquet and coal tar is used as a carbon supply source for making up the carbon reduction atmosphere. The carbon supply source is used within 1 to 50 wt.% on the basis of the weight of ZrO2 single crystal. A high temperature vacuum chamber keeps the vacuum degree of 10¬-1¯10¬-5 torr and the temperature of 950 to 1,500 °C. The heat treatment is lasted for 0.5 to 50 hours.
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