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Title: Large single domain 123 material produced by seeding with single crystal rare earth barium copper oxide single crystals

Abstract

A method of fabricating bulk YBa{sub 2}Cu{sub 3}O{sub x} where compressed powder oxides and/or carbonates of Y and Ba and Cu present in mole ratios to form YBa{sub 2}Cu{sub 3}O{sub x} are heated in the presence of a Nd{sub 1+x}Ba{sub 2{minus}x}Cu{sub 3}O{sub y} seed crystal to a temperature sufficient to form a liquid phase in the YBa{sub 2}Cu{sub 3}O{sub x} while maintaining the seed crystal solid. The materials are slowly cooled to provide a YBa{sub 2}Cu{sub 3}O{sub x} material having a predetermined number of domains between 1 and 5. Crack-free single domain materials can be formed using either plate shaped seed crystals or cube shaped seed crystals with a pedestal of preferential orientation material. 7 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672594
Patent Number(s):
5,776,864
Application Number:
PAN: 8-834,687; TRN: 99:001060
Assignee:
Univ. of Chicago, IL (United States)
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 7 Jul 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; CRYSTAL GROWTH; FABRICATION; HEATING; PRECURSOR; NEODYMIUM OXIDES

Citation Formats

Todt, V, Miller, D J, Shi, D, and Sengupta, S. Large single domain 123 material produced by seeding with single crystal rare earth barium copper oxide single crystals. United States: N. p., 1998. Web.
Todt, V, Miller, D J, Shi, D, & Sengupta, S. Large single domain 123 material produced by seeding with single crystal rare earth barium copper oxide single crystals. United States.
Todt, V, Miller, D J, Shi, D, and Sengupta, S. Tue . "Large single domain 123 material produced by seeding with single crystal rare earth barium copper oxide single crystals". United States.
@article{osti_672594,
title = {Large single domain 123 material produced by seeding with single crystal rare earth barium copper oxide single crystals},
author = {Todt, V and Miller, D J and Shi, D and Sengupta, S},
abstractNote = {A method of fabricating bulk YBa{sub 2}Cu{sub 3}O{sub x} where compressed powder oxides and/or carbonates of Y and Ba and Cu present in mole ratios to form YBa{sub 2}Cu{sub 3}O{sub x} are heated in the presence of a Nd{sub 1+x}Ba{sub 2{minus}x}Cu{sub 3}O{sub y} seed crystal to a temperature sufficient to form a liquid phase in the YBa{sub 2}Cu{sub 3}O{sub x} while maintaining the seed crystal solid. The materials are slowly cooled to provide a YBa{sub 2}Cu{sub 3}O{sub x} material having a predetermined number of domains between 1 and 5. Crack-free single domain materials can be formed using either plate shaped seed crystals or cube shaped seed crystals with a pedestal of preferential orientation material. 7 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {7}
}