Abstract: With the increasing demands on the properties of ultrafine powders,the preparation of ultrafine powders has attracted more and more attention.The performance of ultrafine powders cannot be controlled by traditional methods.Control of ultrafine powders size,particle size distribution and morphology in ultrasonic atomization has unique advantages,and the methods gradually become frontier technology for ultrafine powders preparation methods.The mechanism of this method was thoroughly reviewed,the size and morphology of ultrafine powders were discussed in term of the change of process and ultrasonic atomization technology.The existed problems,and the future application and challenges in this field were prospected.
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