| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for producing fine particles, by which fine particles can be readily produced from a raw material having a high melting point, by which fine particles of subμm order that are difficult to produce by means of the prior art can be comparatively easily produced, and by which amorphous fine particles or polycrystalline fine particles having a desired particle size can be produced by regulating conditions for fine particle formation and for cooling-solidification. SOLUTION: A molten material 1 which has been formed by melting a raw material to be formed into fine particles is supplied in the form of droplets 1a or a jet flow to a liquid coolant 3, and a vapor film formed around the molten material supplied to the liquid coolant 3 is forcedly broken to promote vapor explosion, thereby forming and cooling fine particles for solidification. COPYRIGHT: (C)2011,JPO&INPIT
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