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EP0284062A2
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Ceramic oxide superconductive composite material
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1988-03-24
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Granted: —
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Expires: 2008-03-24
Abstract
Abstract A ceramic oxide superconductive composite material comprising a ceramic superconductor and a non-superconductive material comprising at least one element which does not react with any of the elements of the ceramic oxide superconductor has improved superconductive properties such as a higher critical temperature and a larger critical current density.
Inventors
- 👤 Masayuki C/O Osaka Works Of Nagata
- 👤 Minoru C/O Osaka Works Of Yokota
- 👤 Ken-Ichi C/O Osaka Works Of Sato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 19:40
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/45; C04B35/4504; H; H10; H10N; H10N60/00; H10N60/01; H10N60/0268; H10N60/20; H10N60/203; H10N60/80; H10N60/85; H10N60/855; H10N60/857
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
34 words
A ceramic oxide superconductive composite material comprising a ceramic oxide superconductor and a non-superconductive material comprising at least one element which does not react with any of the elements of the ceramic oxide superconductor.
Claim 2
Dependent Claim
34 words
A ceramic oxide superconductive composite material comprising a ceramic oxide superconductor and a non-superconductive material comprising at least one element which does not react with any of the elements of the ceramic oxide superconductor.
Claim 3
Dependent Claim
73 words
The ceramic oxide superconductive composite material according to claim 1, wherein the superconductor comprises (1) at least one element selected from the elements of Ia, IIa and IIIa groups of the periodic table, (2) at least one element selected from the elements of Ib, IIb, IIIb, IVa and VIIIa groups of the periodic table, and (3) at least one element selected from the group consisting of oxygen, boron, carbon, nitrogen, fluorine and sulfur.
Claim 4
Dependent Claim
122 words
The ceramic oxide superconductive composite material according to claim 2, wherein the superconductor has a composition of the formula: (M¹ 1-x M² x )M³ y M⁴ z (I) wherein M¹ is at least one element selected from the IIa group elements, M² is at least one element selected from the IIIa group elements, M³ is at least one element selected from Ib, IIb, IIIb, IVa and VIIIa group elements, M⁴ is at least one element selected from the group consisting of oxygen, boron, carbon, nitrogen, fluorine and sulfur, x is not smaller than 0.1 and not larger than 0.9, y is not smaller than 0.4 and not larger than 3.0, and z is not smaller than 1 and not larger than 5.
Claim 5
Dependent Claim
28 words
The ceramic oxide superconductive composite material according to claim 3, wherein M¹ is Ba, M² is an element selected from the group consisting of Sc, Y and La.
Claim 6
Dependent Claim
18 words
The ceramic oxide superconductive composite material according to claim 1, wherein the non-superconductive material is a ferromagnetic material.
Claim 7
Dependent Claim
18 words
The ceramic oxide superconductive composite material according to claim 1, wherein the non-superconductive material is a paramagnetic material.
Claim 8
Dependent Claim
18 words
The ceramic oxide superconductive composite material according to claim 1, wherein the non-superconductive material is a stabilizing material.
Claim 9
Dependent Claim
19 words
The ceramic oxide superconductive composite material according to claim 7, wherein the superconductor is surrounded by the stabilizing material.
Claim 10
Dependent Claim
18 words
The ceramic oxide superconductive composite material according to claim 7, wherein the stabilizing material is copper or aluminum.
Claim 11
Dependent Claim
24 words
The ceramic oxide superconductive composite material according to claim 7, wherein the stabilizing material is aluminum having a purity of 99.99 % or higher.
References Cited (Backward Citations)
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