| 摘要 |
TO PROVIDE A METHOD FOR MANUFACTURING A FINE, SPHERICAL, HIGHLY-CRYSTALLIZED METAL POWDER WHICH HAS A HIGH PURITY, HIGH DENSITY, HIGH DISPERSIBILITY AND EXTREMELY UNIFORM. PARTICLE SIZE, AT LOW COST AND USING AN SIMPLE PROCESS. A METHOD IN WHICH A METAL POWDER IS PRODUCED BY EJECTING A THERMALLY DECOMPOSABLE METAL COMPOUND POWDER INTO A REACTION VESSEL THROUGH A NOZZLE TOGETHER WITH A CARRIER GAS UNDER THE CONDITION VIS> 600, WHERE V IS THE FLOW RATE OF THE CARRIER GAS PER UNIT TIME (LITER/MIN), AND S IS THE CROSS-SECTIONAL AREA. OF THE NOZZLE OPENING PART (CM2), AND HEATING THIS METAL POWDER AT A TEMPERATURE WHICH IS HIGHER THAN THE DECOMPOSITION TEMPERATURE OF THE POWDER AND NOT LOWER THAN (TM -200)OC,' WHERE TM IS THE MELTING POINT OF THE METAL, IN A STATE WHERE THE METAL POWDER IS DISPERSED IN THE GAS PHASE AT A CONCENTRATION OF 10 G/LITER OR LESS.
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