在还原过程中，控制反应温度及氯化物浓度可以获得金属致密镀层或超微粉末。
During the reduction process, it is possible to obtain metal with dense layer or ultrafine powder by controlling the reaction temperature and chloride concentration.
本文针对稀土氧化物超微粉末的研制，提出较好的制备方法：沉淀转化法和喷雾热解法。
Deposition inversion and pulverization pyrolysis are the better preparation methods on the study of rare earth oxide ultra micro powder.
用蒸发凝聚法制备的金属超微粉末的晶体结构与大块材料的晶体结构基本一致，氧化物含量少。
Under the experiment conditions, the crystal structure of the as-prepared ultra-fine metallic powders is almost the same as that of the bulk metal without obvious oxidation.
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