Melt processing of Bi--2212 superconductors using alumina
Abstract
Superconducting articles and a method of forming them, where the superconducting phase of an article is Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.y (Bi-2212). Alumina is combined with Bi-2212 powder or Bi-2212 precursor powder and, in order to form an intimate mixture, the mixture is melted and rapidly cooled to form a glassy solid. The glassy solid is comminuted and the resulting powder is combined with a carrier. An alternative to melting is to form the mixture of nanophase alumina and material having a particle size of less than about 10 microns. The powder, with the carrier, is melt processed to form a superconducting article.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 872544
- Patent Number(s):
- 5958842
- Assignee:
- Regents of Uniersity of California (Los Alamos, NM)
- Patent Classifications (CPCs):
-
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- melt; processing; bi-2212; superconductors; alumina; superconducting; articles; method; forming; phase; article; sr; cacu; combined; powder; precursor; form; intimate; mixture; melted; rapidly; cooled; glassy; solid; comminuted; resulting; carrier; alternative; melting; nanophase; material; particle; size; 10; microns; processed; rapidly cooled; particle size; precursor powder; superconducting article; melt processing; superconducting articles; superconducting phase; intimate mixture; rapidly cool; /505/
Citation Formats
Holesinger, Terry G. Melt processing of Bi--2212 superconductors using alumina. United States: N. p., 1999.
Web.
Holesinger, Terry G. Melt processing of Bi--2212 superconductors using alumina. United States.
Holesinger, Terry G. Fri .
"Melt processing of Bi--2212 superconductors using alumina". United States. https://www.osti.gov/servlets/purl/872544.
@article{osti_872544,
title = {Melt processing of Bi--2212 superconductors using alumina},
author = {Holesinger, Terry G},
abstractNote = {Superconducting articles and a method of forming them, where the superconducting phase of an article is Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.y (Bi-2212). Alumina is combined with Bi-2212 powder or Bi-2212 precursor powder and, in order to form an intimate mixture, the mixture is melted and rapidly cooled to form a glassy solid. The glassy solid is comminuted and the resulting powder is combined with a carrier. An alternative to melting is to form the mixture of nanophase alumina and material having a particle size of less than about 10 microns. The powder, with the carrier, is melt processed to form a superconducting article.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
Works referenced in this record:
The Impact of Oxygen on Melt Processing of Bi-HT Superconductors
book, January 1991
- Bock, J.; Elschner, S.; Preisler, E.
- Advances in Superconductivity III
Reactive nanophase oxide additions to melt-processed high-T/sub c/ superconductors
journal, June 1995
- Goretta, K. C.; Brandel, B. P.; Lanagan, M. T.
- IEEE Transactions on Appiled Superconductivity, Vol. 5, Issue 2
Directional isothermal growth of highly textured Bi 2 Sr 2 CaCu 2 O y
journal, August 1993
- Holesinger, T. G.; Miller, D. J.; Viswanathan, H. K.
- Applied Physics Letters, Vol. 63, Issue 7
Formation of Bi-2212 superconducting whiskers from melt-quenched BSCCO containing alumina
journal, May 1994
- Kasuga, Toshihiro; Ono, Masayasu; Tsuji, Kenji
- Journal of Materials Research, Vol. 9, Issue 5
Crystallization of Bi–Sr–Ca–Cu–O glasses in oxygen
journal, July 1992
- Holesinger, T. G.; Miller, D. J.; Chumbley, L. S.
- Journal of Materials Research, Vol. 7, Issue 7
Electrical transport and superconductivity in the Al2O3-Bi2Sr1.8Ca1.2Cu2Oy and MgO-Bi2Sr1.8Ca1.2Cu2Oy composites
journal, June 1993
- Lin, J. J.; Lin, W. Y.; Tsui, R. F.
- Physica C: Superconductivity, Vol. 210, Issue 3-4
Isothermal melt processing of Bi-2212 thick films
journal, February 1995
- Holesinger, T. G.; Phillips, D. S.; Coulter, J. Y.
- Physica C: Superconductivity, Vol. 243, Issue 1-2
Al 2 O 3 additions for isothermal melt processing of Bi 2 Sr 2 CaCu 2 O y
journal, September 1996
- Holesinger, T. G.
- Journal of Materials Research, Vol. 11, Issue 9
Textured Thick Films of Bi 2 Sr 2 Ca 1 Cu 2 O x
journal, July 1990
- Dietderich, Daniel R.; Ullmann, Bernd; Freyhardt, Herbert C.
- Japanese Journal of Applied Physics, Vol. 29, Issue Part 2, No. 7
Processing of Bi–Sr–Ca–Cu–O glasses using platinum and alumina crucibles
journal, August 1992
- Holesinger, T. G.; Miller, D. J.; Fleshler, S.
- Journal of Materials Research, Vol. 7, Issue 8
Isothermal melt processing of Bi2Sr2CaCu2Oy round wire
journal, October 1995
- Holesinger, T. G.; Johnson, J. M.; Coulter, J. Y.
- Physica C: Superconductivity, Vol. 253, Issue 1-2
Effect of Al 2 O 3 additives on the formation of superconducting whiskers (2212 phase) in melt-quenched BiSrCaCu 2 O x
journal, July 1992
- Abe, Yoshihiro; Hirata, Kazumi; Hosono, Hideo
- Journal of Materials Research, Vol. 7, Issue 7
Growth rate of Bi-2212 superconducting whiskers from melt-quenched BSCCO containing alumina
journal, December 1994
- Kasuga, Toshihiro; Kimura, Hiroaki; Ishigure, Yoshinao
- Journal of Crystal Growth, Vol. 144, Issue 3-4
Relationships between processing temperature and microstructure in isothermal melt processed Bi-2212 thick films
journal, June 1995
- Holesinger, T. G.; Phillips, D. S.; Willis, J. O.
- IEEE Transactions on Appiled Superconductivity, Vol. 5, Issue 2
Improvement of J c of Ag-Sheathed Bi-2212 Tapes Using Melt-Growth Technique under Reduced Oxygen Partial Pressure
journal, October 1993
- Yoshida, Masashi; Endo, Akihiko
- Japanese Journal of Applied Physics, Vol. 32, Issue Part 2, No. 10B