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):
- 5776864
- 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}
}