Investigation of heat-treating conditions for silver-sheathed Bi2212 superconducting coils

Fabrication of silver-sheathed Bi-2212 superconducting coil has been attempted by means of the partial melt growth process. Silver-sheathed Bi-2212 tapes have been cooled down slowly from the temperature range of 875-890°C to 850°C at the rate of 6°C/h. The characteristics of J c - H , AC magnetic s...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 30; no. 12A; pp. 3371 - 3376
Main Authors SHIBUTANI, K, EGI, T, HAYASHI, S, OGAWA, R, KAWATE, Y
Format Journal Article
LanguageEnglish
Published Tokyo Japanese journal of applied physics 01.12.1991
Subjects
Applied sciences
Electrical engineering. Electrical power engineering
Exact sciences and technology
Transformers and inductors
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Summary:Fabrication of silver-sheathed Bi-2212 superconducting coil has been attempted by means of the partial melt growth process. Silver-sheathed Bi-2212 tapes have been cooled down slowly from the temperature range of 875-890°C to 850°C at the rate of 6°C/h. The characteristics of J c - H , AC magnetic susceptibility and X-ray diffraction pattern have been measured, and the SEM image of the cross section has been observed. The pancake-type test coil has been fabricated using an optimized heat-treating condition. This coil generates 0.22 T in the external magnetic field of 0 T and 0.07 T in the external magnetic field of 6.64 T at 4.2 K.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.30.3371