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Title: Preferentially oriented, High temperature superconductors by seeding and a method for their preparation

Patent ·
OSTI ID:873830
 [1];  [1];  [1]
  1. Knoxville, TN
+ Show Author Affiliations

A multi-domained bulk REBa.sub.2 Cu.sub.3 O.sub.x with low-angle domain boundaries which resembles a quasi-single domained material and a method for producing the same comprising arranging multiple seeds, which can be small single crystals, single domained melt-textured REBa.sub.2 Cu.sub.3 O.sub.x pieces, textured substrates comprised of grains with low misorientation angles, or thick film REBa.sub.2 Cu.sub.3 O.sub.x deposited on such textured substrate, such seeds being tailored for various REBa.sub.2 Cu.sub.3 O.sub.x compounds, in specific pattern and relative seed orientations on a superconductor precursor material which may be placed in contact with a porous substrate so as to reduce the amount of liquid phase in the melt. Because seeds can be arranged in virtually any pattern, high quality REBa.sub.2 Cu.sub.3 O.sub.x elements of virtually unlimited size and complex geometry can be fabricated.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
DOE Contract Number:
AC05-96OR22464
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
US 6256521
OSTI ID:
873830
Country of Publication:
United States
Language:
English

References (11)

High current density in bulk YBa 2 Cu 3 O x superconductor journal June 1989
Growth and possible size limitation of quality single-grain YBa2Cu3O7 journal November 1994
Properties of YBa2Cu3O7−δ thick films on flexible buffered metallic substrates journal October 1995
Melt texturing of preferentially aligned YBa 2 Cu 3 O x superconductor by a seeded directional solidification method journal July 1994
Laser deposition of biaxially textured yttria‐stabilized zirconia buffer layers on polycrystalline metallic alloys for high critical current Y‐Ba‐Cu‐O thin films journal November 1992
Control of grain alignment to fabricate long Y‐Ba‐Cu‐O superconductors with high current density journal June 1992
Microstructure and critical current density of zone melt textured YBa 2 Cu 3 O 6+ x journal October 1990
High Magnetic Flux Trapping by Melt-Grown YBaCuO Superconductors journal July 1991
High critical current density superconducting tapes by epitaxial deposition of YBa2Cu3Ox thick films on biaxially textured metals journal September 1996
Epitaxial YBa2Cu3O7 on Biaxially Textured Nickel (001): An Approach to Superconducting Tapes with High Critical Current Density journal November 1996
In‐plane aligned YBa 2 Cu 3 O 7− x thin films deposited on polycrystalline metallic substrates journal February 1992

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preferentially
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multi-domained
bulk
reba
cu
low-angle
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resembles
quasi-single
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arranging
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seed
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liquid
phase
melt
arranged
virtually
quality
elements
unlimited
size
complex
geometry
fabricated
temperature superconductors
textured substrates
superconductor precursor
thick film
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liquid phase
single crystal
single crystals
porous substrate
precursor material
single domain
textured substrate
complex geometry
preferentially oriented
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