Method for making rare earth superconductive composite

Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – With melting

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

264 82, H01L 3924

Patent

active

054967996

ABSTRACT:
A method for making a rare earth superconductive composite which includes a matrix of REBa.sub.2 Cu.sub.3 O.sub.7-x grains and fine particles of RE.sub.2 BaCuO.sub.5 dispersed therein. The method includes a step of forming a compacted mass of powder particles of REBa.sub.2 Cu.sub.3 O.sub.7-x and powder particles of RE.sub.2 BaCuO.sub.5, each of which has an average diameter not greater than 6 .mu.m, and a maximum diameter not greater than 20 .mu.m. The compacted mass is heated to temperature higher than an incongruent melting temperature of the REBa.sub.2 Cu.sub.3 O.sub.7-x and lower than an incongruent melting temperature of RE.sub.2 BaCuO.sub.5, and is gradually cooled such that fine particles of RE.sub.2 BaCuO.sub.5 are dispersed in REBa.sub.2 Cu.sub.3 O.sub.7-x grains. The mass is annealed in an atmosphere containing oxygen.

REFERENCES:
patent: 5011823 (1991-04-01), Jin et al.
patent: 5084436 (1992-01-01), Morimoto et al.
patent: 5231076 (1993-07-01), Jeong et al.
patent: 5240903 (1993-08-01), Shimoyama et al.
patent: 5248660 (1993-09-01), Lee et al.
patent: 5262391 (1993-11-01), Morita et al.
patent: 5270292 (1993-12-01), Hojaji et al.
patent: 5278137 (1994-01-01), Morita et al.
Patent Abstracts of Japan, 04-310574 C1037, vol. 17, No. 135, pub. Mar. 19, 1993.
Patent Abstracts of Japan, 04-240115, C1014, vol. 17, No. 1, pub Jan. 5, 1993.
Patent Abstracts of Japan, 04-98714, E1236, vol. 16, No. 332, pub. Jul. 20, 1992.
Patent Abstracts of Japan, 03-173777, C0878, vol. 15 No. 421, pub. Oct. 25, 1991.
ISTEC Journal vol. 4 No. 3 1991, pp. 31-35, High Critical Current Y-system Bulk Superconductor by Platinum Doped Melt Growth Method.
Handbook for Super Fine Particles, edited by Shinroku Saito, published by Fuji Technosystem in 1990, distributed by Technology Materials Center Inc., pp. 908-917.
K. Nishio et al., Advances in Superconductivity II, Springer-Verlag (1990) pp. 873-876, Preparation of Ag-YBCO Composite Fine Powder by Spray-Pyrolysis.
Y. Saito Journal of Crystal Growth 109 (1991) pp. 426-431, Crystal growth and properties of R.sub.2 Ba.sub.2 CuPtO.sub.8 (R=Ho, Er, Y), R.sub.2 Ba.sub.3 Cu.sub.2 PtO.sub.10 and Ba.sub.4 CuPt.sub.2 O.sub.9.
M. Murakami, Supercond. Sci. Technol. 5 (1992) pp. 185-203, Processing of bulk YBaCuO.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for making rare earth superconductive composite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making rare earth superconductive composite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making rare earth superconductive composite will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1413005

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.