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US 6,555,504 B1Granted
Oxide superconducting wire having insulating coat and production method thereof
AssigneeSumitomo Electric Industries, Ltd.
InventorsNaoki Ayai, Nobuhiro Saga, Kazuhiko Hayashi
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Abstract
An oxide superconducting wire includes oxide superconducting filaments 1, a matrix 2, a covering layer 3, and an insulating layer 4. The matrix 2 is placed so as to enclose the oxide superconducting filaments 1 and is made of silver. The covering layer 3 is placed so as to enclose the matrix 2, contains silver and manganese, and has a thickness of 10 μm to 50 μm. The insulating layer 4 is placed so as to enclose the covering layer 3.
Claims23
An oxide superconducting wire production method comprising:
- a step of preparing a wire having powder of precursor to be sintered into an oxide superconductor, a matrix placed so as to enclose said powder of precursor and made of silver, and a covering layer placed so as to enclose said matrix and containing silver and 0.1% to 0.5% manganese by weight;
- a sintering step of forming an oxide superconductor from said powder of precursor by heating said wire;
- and
- a coating step of forming an insulating layer on the outer surface of said covering layer so as to enclose said covering layer in a state in which tension is applied in the longitudinal direction to said wire having said oxide superconductor.
1 more element
A process for forming an insulating layer on a superconducting wire, comprising:
- applying tension to the superconducting wire in a longitudinal direction;
- and
- forming the insulating layer on an outer surface of the superconducting wire so as to enclose the superconducting wire with the insulating layer while applying the tension to the superconducting wire.
Dependencies are inferred from the claim text.