EP0292126A2
Expired / Lapsed
EP
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Superconductive body having improved properties
Assignee: AT&T Inc
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Filing: 1988-04-27
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Granted: —
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Expires: 2008-04-27
Abstract
Abstract Some mechanical, electrical, and thermal properties of high T c superconductors such as (Ba, Y) cuprates can be substantially improved by the dispersal of an appropriate metal in the superconductive body. For instance, mixing Ag particles with superconductive powder of nominal composition Ba₂YCu₃O₇ and processing the mixture in the conventional manner can produce superconductive bodies having T c of about 93K and substantially greater fracture strength and normal state electrical and thermal conductivity than otherwise identical bodies that do not contain Ag particles.
Inventors
- 👤 Sungho Jin
- 👤 Richard Curry Sherwood
- 👤 Thomas Henry Tiefel
- 👤 Robert Bruce Van Dover
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 10:43
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/20; H10N60/203; H10N60/01; H10N60/0268; H10N60/0296; H10N60/0352; H10N60/0801; H10N60/80; H10N60/85; H10N60/855; H10N60/857
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
83 words
A body (20) comprising a quantity of a superconductive material (22) that comprises at least one superconductive chemical compound CHARACTERIZED IN THAT the superconductive material is a multicomponent material that comprises in addition to the at least one superconductive chemical compound (the first component) a second component consisting substantially of one or more metals distributed throughout at least a major portion of the quantity of superconductive material, the second component being at least about 1% by volume of the quantity of superconductive material.
Claim 2
Dependent Claim
83 words
A body (20) comprising a quantity of a superconductive material (22) that comprises at least one superconductive chemical compound CHARACTERIZED IN THAT the superconductive material is a multicomponent material that comprises in addition to the at least one superconductive chemical compound (the first component) a second component consisting substantially of one or more metals distributed throughout at least a major portion of the quantity of superconductive material, the second component being at least about 1% by volume of the quantity of superconductive material.
Claim 3
Dependent Claim
34 words
The body of claim 1, wherein the metal is a member of the group consisting of Au, Ag, Cu, Fe, Pt, Zn, Sn, Ni, Co, Ti, Al, Mo, Cr, Nb, Zr, and alloys thereof.
Claim 4
Dependent Claim
24 words
The body of claim 2, having at least 50% greater fracture load than an otherwise identical body that does not contain the second component.
Claim 5
Dependent Claim
25 words
The body of claim 2, having at least 100% greater normal state conductivity than an otherwise identical body that does not contain the second component.
Claim 6
Dependent Claim
19 words
The body of any of claims 2, 3, or 4, wherein the superconductive chemical compound is a metal oxide.
Claim 7
Dependent Claim
19 words
The body of any of claims 1-5, wherein the second component consists substantially of a multiplicity of metal particles.
Claim 8
Dependent Claim
27 words
The body of claim 6, wherein the metal particles comprise coated metal particles that have a first metal core and a second metal coating surrounding the core.
Claim 9
Dependent Claim
15 words
The body of claim 6, wherein the metal particles comprise metal flakes or metal filaments.
Claim 10
Dependent Claim
28 words
The body of any of claims 1-8, wherein the body is an elongate body comprising a normal metal cladding (21) that substantially encloses the quantity of superconductive material.
Claim 11
Dependent Claim
23 words
The body of any of claims 2-9, wherein the second component comprises Ag, and the superconductive chemical compound is a (Ba, Y) cuprate.
Claim 12
Dependent Claim
23 words
The body of any of claims 1, 2, or 4-8, or 10, wherein the body is a patterned superconductive layer on a substrate.
Claim 13
Dependent Claim
23 words
The body of claim 11, wherein the substrate comprises a normal metal layer, with the superconductive layer disposed on the normal metal layer.
Claim 14
Dependent Claim
31 words
The body of any of claims 1-8, or 10, wherein the body comprises at least one elongate normal metal body (the "core"), the quantity of superconductive material contactingly surrounding the core.
Claim 15
Dependent Claim
10 words
Apparatus comprising a body according to any of claims 1-13.
References Cited (Backward Citations)
No citation records indexed.
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