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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.
Inventors:
 [1];  [2]
  1. (Bolingbrook, IL)
  2. (Downers Grove, IL)
Issue Date:
OSTI Identifier:
869566
Assignee:
Arch Development Corporation (Chicago, IL) ANL
Patent Number(s):
US 5356869
Contract Number:
W-31109-ENG-38
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
Language:
English
Subject:
metal; oxide; superconducting; powder; comprised; flake-like; single; crystal; particles; ceramic; material; synthesized; particle; nonsymmetric; morphology; c-axis; aligned; parallel; dimension; flake; nonflake; normal; methods; pressed; pellets; shapes; fired; excessive; times; produce; coarse; grained; structure; products; crushed; ground; producing; exhibit; characteristics; lattice; ceramic superconducting; conducting material; oxide superconducting; metal oxide; single crystal; superconducting material; powder particles; crystal lattice; superconducting powder; ceramic superco; aligned parallel; crystal particles; /505/