Dickson Enterprises, Inc.

James Dickson, Deceased

The present invention is for a device for rapidly solidifying a material and a method of using the same. The device provides for containing a molten pool of material in a solid skull with the same composition as the molten material. The skull is preferably held in a cavity of an inductor which is heated by an induction coil. Means are provided to maintain a small temperature gradient in the skull so as to minimize segregation which can lead to compositional fluctuations. It is preferred that the minimum temperature in the skull is between about 0.7 and 0.95Tm, where Tm is the melting or solidus temperature of the material. Feed means provide material to the molten pool causing it to spill over onto a moving chill surface. Preferably the chill surface is cooled by a molten stream of liquid gas.

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Stirling, NJ, United States of America

James Dickson, Deceased