Method for production of B.sub.i -2212 superconducting tape mate

Details Method for production of B.sub.i -2212 superconducting tape mate Method for production of B.sub.i -2212 superconducting tape mate

1997-06-11

1998-12-08

King, Roy V.

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

Process of making wire, tape, cable, coil, or fiber

505450, 505501, 505230, 505733, 427 62, H01L 3924

Patent

active

058469109

ABSTRACT:
This invention concerns a method for the production of an oxide superconducting tape material having a composition of Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.8, which method consists essentially of forming a sandwich structure comprising a layer formed of a superconducting powder consisting essentially of Bi, Sr, Ca, Cu, and O and having an essential structure of Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.8 and silver sheet layers, the superconducting powder layer being interposed between the silver sheet layers, heating the sandwich structure at a temperature in the range of 810.degree.-910.degree. C. in an atmosphere consisting of oxygen and an inert gas and having an oxygen partial pressure in the range of 0-90%, thereby melting the superconducting powder layer, and then elevating the oxygen partial pressure of the atmosphere while retaining the same heating temperature, thereby crystallizing the molten superconducting powder layer.

REFERENCES:
patent: 5242896 (1993-09-01), Matsubara et al.
patent: 5354921 (1994-10-01), Matsubara et al.
MacManus et al, Appl. Phys. Lett. 65(22), Nov. 1994, pp. 2872-2874.
T.G. Holesinger, et al., "Isothermal Melt Processing of Bi-2212 Thick Films", Physica C 243, (1995), pp. 93-102.
T.G. Holesinger, et al., "Directional Isothermal Growth of Highly Textured bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.y ", Appl. Phys. Lett., vol. 63, No. 7, Aug. 16, 1993, pp. 982-984.
R.D. Ray II, et al., "Synthesis of Ag Sheathed, Bi-2212 Tapes by a Novel Liquid Wicking Method", Physica C 251, (1995), pp. 1-6.
Ryoji Funahashi, et al., "Critical Current Density for Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.x /Ag Tapes Prepared Using an Isothermal Partial Melting Method Under Controlled Atmospheres", Physica C 273, (1997), pp. 337-341.

Affiliated with

Also associated with

Rating

Method for production of B.sub.i -2212 superconducting tape mate 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 production of B.sub.i -2212 superconducting tape mate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for production of B.sub.i -2212 superconducting tape mate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-177105