Preparation and composition of superconducting copper oxides based on Ga-O layers
Abstract
A high temperature superconducting material with the general formula GaSr[sub 2]Ln[sub 1[minus]x]M[sub x]Cu[sub 2]O[sub 7[+-]w] wherein Ln is selected from the group consisting of La, Ce, Pt, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y and M is selected from the group consisting of C and Sr, 0.2[<=]x[<=]0.4 and w is a small fraction of one. A method of preparing this high temperature superconducting material is provided which includes heating and cooling a mixture to produce a crystalline material which is subsequently fired, ground and annealed at high pressure and temperature in oxygen to establish superconductivity. 14 figures.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 6663753
- Patent Number(s):
- 5374611
- Application Number:
- PPN: US 7-956844
- Assignee:
- University of Chicago, Chicago, IL (United States); Northwestern University, Evanston, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1 Oct 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; CHEMICAL COMPOSITION; FABRICATION; CALCIUM OXIDES; CERIUM OXIDES; COPPER OXIDES; DYSPROSIUM OXIDES; ERBIUM OXIDES; EUROPIUM OXIDES; GADOLINIUM OXIDES; GALLIUM OXIDES; HOLMIUM OXIDES; LANTHANUM OXIDES; PLATINUM OXIDES; SAMARIUM OXIDES; STRONTIUM OXIDES; TERBIUM OXIDES; THULIUM OXIDES; YTTERBIUM OXIDES; YTTRIUM OXIDES; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DYSPROSIUM COMPOUNDS; ERBIUM COMPOUNDS; EUROPIUM COMPOUNDS; GADOLINIUM COMPOUNDS; GALLIUM COMPOUNDS; HOLMIUM COMPOUNDS; LANTHANUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PLATINUM COMPOUNDS; RARE EARTH COMPOUNDS; SAMARIUM COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TERBIUM COMPOUNDS; THULIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTERBIUM COMPOUNDS; YTTRIUM COMPOUNDS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication
Citation Formats
Dabrowski, B, Vaughey, J T, and Poeppelmeier, K R. Preparation and composition of superconducting copper oxides based on Ga-O layers. United States: N. p., 1994.
Web.
Dabrowski, B, Vaughey, J T, & Poeppelmeier, K R. Preparation and composition of superconducting copper oxides based on Ga-O layers. United States.
Dabrowski, B, Vaughey, J T, and Poeppelmeier, K R. Tue .
"Preparation and composition of superconducting copper oxides based on Ga-O layers". United States.
@article{osti_6663753,
title = {Preparation and composition of superconducting copper oxides based on Ga-O layers},
author = {Dabrowski, B and Vaughey, J T and Poeppelmeier, K R},
abstractNote = {A high temperature superconducting material with the general formula GaSr[sub 2]Ln[sub 1[minus]x]M[sub x]Cu[sub 2]O[sub 7[+-]w] wherein Ln is selected from the group consisting of La, Ce, Pt, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y and M is selected from the group consisting of C and Sr, 0.2[<=]x[<=]0.4 and w is a small fraction of one. A method of preparing this high temperature superconducting material is provided which includes heating and cooling a mixture to produce a crystalline material which is subsequently fired, ground and annealed at high pressure and temperature in oxygen to establish superconductivity. 14 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 20 00:00:00 EST 1994},
month = {Tue Dec 20 00:00:00 EST 1994}
}
Search for the full text at the U.S. Patent and Trademark Office
Note: You will be redirected to the USPTO site, which may require a pop-up blocker to be deactivated to view the patent. If so, you will need to manually turn off your browser's pop-up blocker, typically found within the browser settings. (See DOE Patents FAQs for more information.)
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.