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Recrystalljzation of Non-Vacuum Derived Ba2ycu3o7-δ Films

Published online by Cambridge University Press:  28 February 2011

Man Fai Ng ,
Simone C. Peterson  and
Michael J. Cima
Man Fai Ng
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139.
Simone C. Peterson
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139.
Michael J. Cima
Affiliation:
Ceramics Processing Research Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139.
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Abstract

Partial melting followed by recrystallization at lower temperatures during high temperature treatment of superconducting Ba2YCu3O7-δ films is associated with texture development In these films, partial melting is induced by rapid thermal annealing at a temperature slightly above the peritectic melting temperature of Ba2YCu3O7-δ. Short firing duration prevents segregation of liquid and permits recrystallization of the correct phase at around 920°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 169: Symposium M – High Temperature Superconductors: Fundamental Properties and Novel Materials Processing , 1989 , 731
Copyright
Copyright © Materials Research Society 1990

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