Method of manufacturing a superconducting wire
AssigneeU.S. Philips Corporation
InventorsGijsbertus De With, Jan W. Severin
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Abstract
A method of manufacturing a wire of superconducting oxidic material, in which a preform is used, which includes dispersions of a superconducting material and of a non-superconducting material in a binder or which includes dispersions of non-superconducting materials in a binder, in which latter case the materials can react while forming a superconducting compound, in which the preform is extruded to a wire, the binder is baked out and the wire is sintered.
Claims9
A method of manufacturing a wire of a superconducting oxide material comprising forming an essentially cylindrical preform comprising a rod-shaped filament (F) product embedded in, and surrounded by a matrix (M) product, the F and the M products both containing a binder in which pulverulent oxidic materials are dispersed, the pulverulent oxidic material present in the F product and the pulverulent oxidic material present in the M product being capable of reacting, in a solid state reaction, with each other to form a superconducting oxidic material of the formula YBa.sub.2 Cu.sub.3 O.sub.7-.gamma., where .gamma.=0.1-0.5, extruding said preform to form a wire of desired diameter, heating said wire to decompose and bake out said binder, then sintering said wire to thereby cause the pulverulent oxidic material present in the F product and pulverulent oxidic material present in the M product to react with each other at the interface of the F product and the M product and form said superconducting oxidic material.
Dependencies are inferred from the claim text.