Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1991-08-01
1993-07-27
Lieberman, Paul
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
423593, 423604, 505725, 505742, C01F 1104, C01G 302, H01L 3924
Patent
active
052310760
ABSTRACT:
A process for preparing 123 superconductor material comprising heating a 123 compact in direct physical contact with a 211 compact to decompose only the 123 compact to form a liquid phase in the 123 compact is disclosed. The heat is maintained with the liquid phase passing into the 211 compact, to form a decomposed compact and an enriched compact. The decomposed and enriched compacts are cooled to below 1000 degrees celsius to promote a peritectic reaction between the 211 grains and the infiltrated liquid phase in the 211 compact. The decomposed and enriched compacts are then further cooled to about 400-600 degrees celsius in an oxygen atmosphere, and finally cooled to room temperature to yield a fused 123 decomposed compact-123 enriched compact. The 123 superconductor having enhanced electrical and mechanical properties is the 123 enriched compact which can be separated from the decomposed compact, by severing the 123 decomposed compact from the 123 enriched compact.
REFERENCES:
patent: 4857504 (1989-08-01), Hermann
patent: 4956338 (1990-09-01), Rapp
patent: 4994437 (1991-02-01), Torii
Murakami et al., "A New Process with the Promise of High J.sub.c in Oxide Superconductors", 1989, pp. 1189-1194.
Murakami et al. "Microstructural Study of the Y--BA--Cu--O System at High Temperatures", 1989, pp. L399-L401.
Murakami et al. "Melt Processing of High-Temperature Superconductors", 1990.
Jeong In K.
Kim Doh Y.
Park Jong C.
Park Yong K.
Boyd John
Korea Standards Research Institute
Lieberman Paul
LandOfFree
Process for manufacturing a YBa.sub.2 Cu.sub.3 O.sub.x supercond does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for manufacturing a YBa.sub.2 Cu.sub.3 O.sub.x supercond, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing a YBa.sub.2 Cu.sub.3 O.sub.x supercond will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2342312