Oxide superconducting wire

Patent metadata

Field	Value
Publication number	US-10665367-B2
Application number	US-201615767420-A
Country	US
Kind code	B2
Filing date	Jul 12, 2016
Priority date	Oct 15, 2015
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

An oxide superconducting wire includes an oriented metal substrate, an intermediate layer formed on the oriented metal substrate, and an oxide superconducting layer formed on the intermediate layer. The oriented metal substrate has an in-plane orientation Δϕ of 7° or less. The intermediate layer is formed of a single layer.

First claim

The invention claimed is:

1. An oxide superconducting wire comprising:
an oriented metal substrate;
an intermediate layer formed on the oriented metal substrate and being in contact with the oriented metal substrate; and
an oxide superconducting layer formed on the intermediate layer and being in contact with the intermediate layer,
the oriented metal substrate having an in-plane orientation (Δϕ) of 7° or less, and
the intermediate layer being formed of a single layer having a thickness of 10 nm or more and 200 nm or less,
wherein a value obtained by dividing a difference between an in-plane orientation of the intermediate layer and the in-plane orientation of the oriented metal substrate by the in-plane orientation of the oriented metal substrate, expressed as a percentage, is 15% or less.

2. The oxide superconducting wire according to claim 1 , wherein the intermediate layer has an in-plane orientation of 8° or less.

3. The oxide superconducting wire according to claim 2 , wherein the oriented metal substrate includes an oxide layer at a top portion in contact with the intermediate layer.

4. The oxide superconducting wire according to claim 1 , wherein the intermediate layer has a thickness of 10 nm or more.

5. The oxide superconducting wire according to claim 4 , wherein the intermediate layer has an in-plane orientation of 8° or less.

6. The oxide superconducting wire according to claim 4 , wherein the oriented metal substrate includes an oxide layer at a top portion in contact with the intermediate layer.

7. The oxide superconducting wire according to claim 1 , wherein
the oriented metal substrate is a clad substrate.

8. The oxide superconducting wire according to claim 7 , wherein the intermediate layer has an in-plane orientation of 8° or less.

9. The oxide superconducting wire according to claim 7 , wherein the oriented metal substrate includes an oxide layer at a top portion in contact with the intermediate layer.

10. The oxide superconducting wire according to claim 1 , wherein the oriented metal substrate includes an oxide layer at a top portion in contact with the intermediate layer.

Assignees

• Sumitomo Electric Industries

Inventors

• Honda Genki
• Nagaishi Tatsuoki
• Konishi Masaya
• Ohki Kotaro
• Yamaguchi Takashi
• Yoshihara Tatsuhiko

Classifications

• H01B12/06 Primary

  Films or wires on bases or cores · CPC title

• C01P2006/40

  Electric properties · CPC title

• C01G3/006

  Compounds containing copper, with or without oxygen or hydrogen, and containing two or more other elements · CPC title

• C01G3/00

  Compounds of copper · CPC title

• C01G1/00

  Methods of preparing compounds of metals not covered by subclasses C01B, C01C, C01D, or C01F, in general (electrolytic production of inorganic compounds C25B1/00) · CPC title