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Title: Method for harvesting rare earth barium copper oxide single crystals

A method of preparing high temperature superconductor single crystals. The method of preparation involves preparing precursor materials of a particular composition, heating the precursor material to achieve a peritectic mixture of peritectic liquid and crystals of the high temperature superconductor, cooling the peritectic mixture to quench directly the mixture on a porous, wettable inert substrate to wick off the peritectic liquid, leaving single crystals of the high temperature superconductor on the porous substrate. Alternatively, the peritectic mixture can be cooled to a solid mass and reheated on a porous, inert substrate to melt the matrix of peritectic fluid while leaving the crystals melted, allowing the wicking away of the peritectic liquid.
Inventors:
 [1];  [2];  [3]
  1. (Lemont, IL)
  2. (Columbus, OH)
  3. (Cincinnati, OH)
Issue Date:
OSTI Identifier:
870363
Assignee:
University of Chicago (Chicago, IL) ANL
Patent Number(s):
US 5504060
Contract Number:
W-31109-ENG-38
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
Language:
English
Subject:
method; harvesting; rare; earth; barium; copper; oxide; single; crystals; preparing; temperature; superconductor; preparation; involves; precursor; materials; particular; composition; heating; material; achieve; peritectic; mixture; liquid; cooling; quench; directly; porous; wettable; inert; substrate; wick; leaving; alternatively; cooled; solid; mass; reheated; melt; matrix; fluid; melted; allowing; wicking; peritectic mixture; inert substrate; involves preparing; temperature superconductor; copper oxide; rare earth; single crystal; single crystals; porous substrate; solid mass; precursor material; precursor materials; barium copper; oxide single; particular composition; preparation involves; preparing precursor; earth barium; /505/117/