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美国戈特耶公司采用一种新方法，研制出一种具有一定氧含量等离子喷涂烧结根粉．这种方法，是先将二氧化相磨至小于10pm，然后调浆，即将留细的二氧化铝和钟钥酸铁溶于水，再将浆料烘干，形成含氧多于25％的聚集状混合物，天后在700～1000℃的温度下用红还原形成含氧为7％～10
US Gotthard company uses a new method to develop a certain oxygen content of plasma spray sintered root powder. In this method, the oxidized phase is first pulverized to less than 10pm, and then the mortar, the finely divided alumina and mesoporicylic acid are dissolved in water, and then the slurry is dried to form more than 25% Aggregate mixture, the day after the temperature of 700 ~ 1000 ℃ red reduction to form an oxygen content of 7% ~ 10