Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Heating – annealing – or sintering
Patent
1993-06-30
1995-08-08
Fiorilla, Christopher A.
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Heating, annealing, or sintering
156 47, 156 89, 505450, H01L 3912
Patent
active
054398797
ABSTRACT:
A method of fabricating articles from segments of anisotropically conducting 123 superconductor such that the current transport properties of the article are comparable to those of the individual segments. The segments to be joined are examined to determine the orientation of the ab plane. Contact surfaces are formed where necessary and the segments are brought into contact and the ab planes are brought into parallel alignment. The contacted segments are elevated in temperature and static pressure is applied to accelerate reaction across the interface of the contact surfaces. The so-formed coherent article is then cooled at a controlled rate.
REFERENCES:
patent: 5081074 (1992-01-01), Murayama et al.
patent: 5157017 (1992-10-01), Jin et al.
Japanese Patent Abstract JP 3030264 Jun. 27, 1989.
Murayama N. et al. "Joining of Hot-Pressed Bi-Pb-Sr-Ca-Cu-O Superconductor," Japanese Journal of Applied Physics, vol. 28, No. 10, Oct. 1989; pp. L1740-1741.
Murayama N. et al. "Hot-pressing of Bi-Pb-Sr-Ca-Cu-O Superconducting Thick Film," Japanese Journal of Applied Physics, vol. 29, No. 6, Jun. 1990; pp. L875-L877.
Sturm M. J. et al. "Joining of YBa.sub.2 Cu.sub.3 O.sub.7-x Superconductors," Materials Letters, vol. 12, No. 5, Dec. 1991; pp. 316-320.
Salama K. et al., "Joining of high current bulk Y-Ba-Cu-O superconductors" Appl. Phys. Lett., vol. 60, No. 7, 17 Feb. 1992; pp. 898-900.
Patent Abstracts of Japan, vol. 13 No. 213 (E-759) and JP-A-10 27 172 (Toshiba); Abstract.
I. W. Chen, W. Wu, S. J. Keating, C. Y. Keating, P. A. Johnson, and T. Y. Tien; "Texture Development in YBa.sub.2 Cu.sub.3 O.sub.x by Hot Extrusion and Hot-Pressing;" J. Am. Ceram. Soc. vol. 70, C388 (1987).
K. Higashida, N. Narita; "High Temperature Deformation and Textures in Oxide Superconductors;" Adv. in Supercond. III, cd. K. Kajimura, H. Hayawada, Springer Verlang, 1991.
G. S. Grader, H. M. O'Bryan, W. W. Rhodes, "Improved Press Forging of Ba.sub.2 YCu.sub.3 O.sub.x Superconductor;" Appl. Phys. Lett. vol. 52, 1983 (1988).
D. Dimos, P. Chaudari, J. Mannhart, F. K. LeGoues, "Orientation Dependence of Grain-Boundary Critical Currents in YBa.sub.2 Cu.sub.3 O.sub.7-.delta. Bicrystals," Phys. Rev. Lett. 61, 219 (1988).
W. A. Nash; Strength of Materials, Schaum's Series, p. 266.
Salama Kamel
Selvamanickam Venkatakrishnan
Fiorilla Christopher A.
University of Houston-University Park
LandOfFree
Method for joining superconductor segments to form a superconduc 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 joining superconductor segments to form a superconduc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for joining superconductor segments to form a superconduc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-971135