NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Tape casting and partial melting of Bi-2212 thick filmsTo produce Bi-2212 thick films with high critical current densities tape casting and partial melting is a promising fabrication method. Bi-2212 powder and organic additives were mixed into a slurry and tape casted onto glass by the doctor blade tape casting process. The films were cut from the green tape and partially molten on Ag foils during heat treatment. We obtained almost single-phase and well-textured films over the whole thickness of 20 microns. The orientation of the (a,b)-plane of the grains was parallel to the substrate with a misalignment of less than 6 deg. At 77 K/0T a critical current density of 15, 000 A/sq cm was reached in films of the dimension 1 cm x 2 cm x 20 microns (1 micron V/cm criterion, resistively measured). At 4 K/0T the highest value was 350,000 A/sq cm (1 nV/cm criterion, magnetically measured).
Document ID
19960000303
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Buhl, D. (Eidgenoessische Technische Hochschule Zurich, Switzerland)
Lang, TH. (Eidgenoessische Technische Hochschule Zurich, Switzerland)
Heeb, B. (Eidgenoessische Technische Hochschule Zurich, Switzerland)
Gauckler, L. J. (Eidgenoessische Technische Hochschule Zurich, Switzerland)
Date Acquired
September 6, 2013
Publication Date
April 1, 1995
Publication Information
Publication: NASA. Johnson Space Center, Proceedings of the 4th International Conference and Exhibition: World Congress on Superconductivity, Volume 2
Subject Category
Engineering (General)
Accession Number
96N10303
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle19960000272Collected WorksProceedings of the 4th International Conference and Exhibition: World Congress on Superconductivity, Volume 2
No Preview Available