PRODUCTION OF FINE POWDER

摘要

PROBLEM TO BE SOLVED: To produce fine powder having a small particle diameter while accurately controlling the particle diameter. SOLUTION: A desired material to be finely powdered is evaporated under pulse discharge at 106-1010 W/cm2 power density while controlling the power density to obtain the objective fine power of the desired material having a desired particle diameter. The pulse discharge is preferably carried out under cooling, ultrasonic vibration or centrifugal force.