INFLUENCE OF HIGH ENERGY BALL MILLING AT HIGH TEMPERATURE ON CARBOTHERMAL REDUCTION OF ALUMINA
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摘要: 研究了高温球磨对氧化铝碳热还原反应的作用。发现在600℃高温球磨过程中发生了碳热还原反应，产物相为AlON相；粉末经高温球磨后，再进行碳热还原氨化反应，与室温球磨及原始粉末相比，高温球磨后的反应率提高，即高温球磨促进了碳热还原反应的进行。Abstract: Influence of high energy ball milling at high temperature on the carbothermal reduction of alumina was studied.The results showed that carbothermal reduction occurred in the process of high energy ball milling at high temperature 600℃ and AlON intermediate phase was formed. After milling, the resultant were reheated to 1250℃ in flowing nitrogen. The reaction rate of the reactants milled at high temperature was higher than that of milled at room temperature.
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