Method of preparing oxide superconducting bulk body

Details Method of preparing oxide superconducting bulk body Method of preparing oxide superconducting bulk body

1998-07-06

2000-07-04

Kunemund, Robert

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

With melting

505451, 505729, C30B 2922

Patent

active

060838868

ABSTRACT:
Provided is a method of preparing a large-sized oxide superconducting bulk body having excellent characteristics and high homogeneity. The method is adapted to prepare an oxide superconducting bulk body by melt growth through a seed crystal method, and comprises steps of preparing a precursor by press-molding material powder obtained by mixing REBa.sub.2 Cu.sub.3 O.sub.7-z powder with RE.sub.2 BaCuO.sub.5 or RE.sub.4 Ba.sub.2 Cu.sub.2 O.sub.10 powder and a platinum additive, homogeneously semi-melting the precursor by holding the same at a holding temperature T.sub.1 .degree. C. (t.sub.1 +20.ltoreq.T.sub.1 .ltoreq.t.sub.1 +80 assuming that the melting point of the oxide superconducting bulk body is t.sub.1 .degree. C.) for a prescribed time, and crystal-growing the precursor at a temperature not more than the melting point t.sub.1 .degree. C.

REFERENCES:
patent: 5248660 (1993-09-01), Lee et al.
patent: 5525585 (1996-06-01), Suh et al.
patent: 5536704 (1996-07-01), Yamada et al.
patent: 5611854 (1997-03-01), Veal et al.
Sawano et al., "High Magentic Flux Trapping By Melt-Grown YBaCuO Superconductors", Japanese Journal of Applied Physics, vol.30(7A):L1157-L1159, (1991).
Ogawa et al., "Preparation of YBCO Bulk Superconductor by Plantinum Doped Melt Growth Method", Supercond. Sci. Technol., vol. 5, pp. S89-S92, (1992).
Misao, "Production of Oxide Superconductor Material", Patent Abstact of Japan, vol. 96, No. 9, (Sep. 30, 1996), JP 08 133726, (Nippon Steel Corp.), May 28, 1996.
Takagi et al., "Preparation of Melt-Textured NdBa.sub.2 Cu.sub.3 O.sub.y Bulk With Nd.sub.4 Ba.sub.2 Cu.sub.2 O.sub.10 Addition", Physica C, vol. 250, pp. 222-226, (1995).
A. Takagi et al., "Preparation of Melt-Textured NdBa.sub.2 Cu.sub.3 O.sub.y bulk with Nd.sub.4 Ba.sub.2 Cu.sub.2 O.sub.10 addition", Physica, C250, (1996), pp. 222-226.

Affiliated with

Also associated with

Rating

Method of preparing oxide superconducting bulk body 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 of preparing oxide superconducting bulk body, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing oxide superconducting bulk body will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1486414