An attempt at the production of rapidly solidified particles by thermal interaction in a molten metal/water system

The thermal interaction between a molten metal drop and water is applied to produce rapidly solidified particles such as amorphous powder. When the atmosphere above the water surface is steam and the water temperature is low, particles of smaller size are obtained. When a pressure pulse from an exploding wire is applied to the boiling film on the molten metal drop, the particle size also becomes small. If the water temperature is high enough and the pressure pulse is applied, particles become more spherical. In the case of Pd-Si alloy with 20at% Si, it is confirmed that an amorphous phase is formed.