PURPOSE: To facilitate manufacture of sintered superconductive material as a wire in practical application having high critical temp. by accommodating Au2O3 in a metal cylinder together with material powder in a manufacturing process, in which material powder is sintered in the metal cylinder.
CONSTITUTION: Au2O3 dissolves at a temp. over 160°C and emits oxygen to supply oxygen to the material powder which is required at the time of sintering. A plasticible metal cylinder is used with one end closed, and wire stretching or forging turns it into required form while the material powder is held in the cylinder at an appropriate density. Prior to filling of material powder, the Au2O3 is attached to the inner surface of the metal cylinder, and it is desirable that the substance produced after supply of oxygen does not react with the sintered substance. By this method, a wire can be manufactured practically in which a sintered substance having high superconductivity is accommodated in a metal cylinder having substantial mechanical strength and plasticity.
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KAWABE NOZOMI
AWAZU TOMOYUKI
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