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EP0299796A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Silver additives for ceramic superconductors

Assignee: HP Inc
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Filing: 1988-07-15
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Granted: —
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Expires: 2008-07-15
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Abstract

Abstract A method for making metal/ceramic superconductor thick film structures including the steps of preparing a silver/superconductor ink, applying the ink to a substrate, evaporating the ink's binder, decomposing a silver compound in the residue to coat the superconductor grains, sintering the coated superconductor grains, and oxygenating the superconductor grains through the silver coating. The resultant inter-granular silver increases the critical current and mechanical strength of the superconductor.

Inventors

  • 👤 John T. Anderson
  • 👤 V.K. Nagesh
  • 👤 Richard C. Rugby

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 07:45
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0268; H10N60/0296; H10N60/0352

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 22 words
A method of improving the properties of a multigranular ceramic superconductor material which comprises filling inter-granular spaces thereof with metallic conductive material.
Claim 2
Independent Claim 22 words
A method of improving the properties of a multigranular ceramic superconductor material which comprises filling inter-granular spaces thereof with metallic conductive material.
Claim 3
Dependent Claim 23 words
A method according to claim 1, in which the metallic material is formed in the inter-granular space by decomposition of a metallic compound.
Claim 4
Dependent Claim 18 words
A method according to claim 1 or 2, in which the metallic conductive material is a metallic element.
Claim 5
Dependent Claim 14 words
A method according to claim 3, in which the metallic conductive material is silver.
Claim 6
Dependent Claim 21 words
A method according to claim 4, in which the silver is formed by decomposition of a silver neodecanoate, mercaptide, or resinate.
Claim 7
Independent Claim 43 words
A method according to any of claims 1 to 5, in which the metallic conductive material is formed in the inter-granular space before the superconductor material is formulated as an ink or after a superconductor ink formulation has been applied to a substrate.
Claim 8
Independent Claim 21 words
A method according to any of the preceding claims, comprising the subsequent steps of sintering and then oxygenating the superconductor particles.
Claim 9
Dependent Claim 17 words
A multigranular ceramic superconductor material comprising inter-granular silver or other conductive metallic material connecting the grains together.
Claim 10
Dependent Claim 17 words
A multigranular ceramic superconductor material comprising inter-granular silver or other conductive metallic material connecting the grains together.
Claim 11
Dependent Claim 20 words
A superconductor material according to claim 8, in which the inter-granular material has a thickness of up to 0.1 microns.
Claim 12
Dependent Claim 20 words
A multigranular ceramic superconductor material comprising inter-granular metal-containing material capable of decomposition to form silver or other conductive metallic material.
Claim 13
Dependent Claim 20 words
A multigranular ceramic superconductor material comprising inter-granular metal-containing material capable of decomposition to form silver or other conductive metallic material.
Claim 14
Dependent Claim 14 words
A multigranular ceramic superconductor in which the grains are coated with a metallic conductor.
Claim 15
Dependent Claim 14 words
A multigranular ceramic superconductor in which the grains are coated with a metallic conductor.
Claim 16
Dependent Claim 8 words
A silver conductor containing grains of superconductor material.
Claim 17
Dependent Claim 8 words
A silver conductor containing grains of superconductor material.

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