Abstract
Amorphous Ti65 Co20 Si15 powders were produced by a rotating electrode process with rapid cooling system developed by the present authors. The amorphous powders have a tear like form with smooth surface. The aspect ratio, thickness and structure of the powders can be controlled by changing the rotating speed of mother alloy electrode, the circumferential velocity(C.V.) of cooling copper roll and the distance between mother alloy electrode and cooling copper roll. The thinckness of powders decreases with an increase of the circumferential velocity of cooling copper roll and is about 25μm at the velocity of 25m/s. The highly effective production of the amorphous powders was achieved in the condition where the rotating direction of the cooling copper roll is inversed to that of the mother alloy electrode.
