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Title: Metal oxide superconducting powder comprised of flake-like single crystal particles

Powder of a ceramic superconducting material is synthesized such that each particle of the powder is a single crystal having a flake-like, nonsymmetric morphology such that the c-axis is aligned parallel to the short dimension of the flake. Nonflake powder is synthesized by the normal methods and is pressed into pellets or other shapes and fired for excessive times to produce a coarse grained structure. The fired products are then crushed and ground producing the flake-like powder particles which exhibit superconducting characteristics when aligned with the crystal lattice. 3 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
6894567
Assignee:
Arch Development Corp., Chicago, IL (United States) PTO; EDB-94-167504
Patent Number(s):
US 5356869; A
Application Number:
PPN: US 7-629089
Contract Number:
W-31109-ENG-38
Resource Relation:
Patent File Date: 17 Dec 1990
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; FABRICATION; MORPHOLOGY; SUPERCONDUCTIVITY; MONOCRYSTALS; SYNTHESIS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; PHYSICAL PROPERTIES 360201* -- Ceramics, Cermets, & Refractories-- Preparation & Fabrication; 360202 -- Ceramics, Cermets, & Refractories-- Structure & Phase Studies; 360207 -- Ceramics, Cermets, & Refractories-- Superconducting Properties-- (1992-)