High T.sub.c superconducting unit having low contact surface res

Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

156643, 174 94R, 1741251, 20419217, 2041923, 427 62, 505706, C04B 3500, H01R 400, H01B 1200

Patent

active

051496860

ABSTRACT:
A high-T.sub.c superconducting unit is disclosed having low contact resistivity between a substantially non-degraded surface of the superconductor and a surface of a contact pad in engagement with the substantially non-degraded surface of the superconductor, with contact resistivity of less than 1000 .mu..OMEGA.-cm.sup.2 at high-T.sub.c superconductor operating temperatures being disclosed.

REFERENCES:
patent: 3703254 (1972-11-01), Maierson et al.
patent: 3915369 (1975-10-01), Schmidt-Brueckan et al.
patent: 3993411 (1976-11-01), Babcock et al.
patent: 4056642 (1977-11-01), Saxena et al.
patent: 4337133 (1982-06-01), Augis et al.
patent: 4423430 (1983-12-01), Hasuo et al.
patent: 4544091 (1985-10-01), Hidler et al.
patent: 4562121 (1985-12-01), Thiemann et al.
patent: 4660061 (1987-04-01), Sweeny et al.
patent: 4963523 (1990-10-01), Ekin et al.
patent: 5015620 (1991-05-01), Ekin et al.
Nato et al.; Jap. J. of App. Phys. Letters, vol. 26, No. 5, May 1987, pp. 02-L803.
Hikita et al., Jap. J. of App. Phys. Letters, vol. 26, No. 5, May 1987; pp. L615-L616.
Farrell, D. E. et al.; "Weak Field Magnitization of Superconducting Y.sub.2 Ba.sub.2 Cu.sub.3 O.sub.x ", Relationship to Microstructure; American Physical Society; Physical Review B1, vol. 35, No. 16; Jun. 1987; pp. 8797-8799.
McCollum R. W. et al.; "Problems in the Production of YB.sub.a 2Cu30x Superconducting Wire", Advanced Ceramic Materials-Ceramic Superconductors, vol. 2, No. 3B, Jul. 1987; pp. 388-400; Acers, Westerville, Ohio, U.S.
Hayaski; K. et al.; "Preparation and Characterization of Ba-Y-Cu- single crystals"; Japanese Journal of Applied Physics; vol. 26, No. 7, Jul. 87; pp. L1240-L1243; p. L1740, column 2, lines 18-23.
EP-A-O 281474 (Sumitomo) (Abstract, lines 8-12).
Kurisu, M., "Effect of Hydrostatic Pressure on the Superconducting Transition Temperature of (La.sub.1, -xB.sub.ax).sub.2 CuO.sub.4-y with X=0.075", Journal of Applied Physics, Apr. 1987 pp. L361-362.
Maas, J. Vander et al.; "Improved low contact resistance in high-T.sub.c Y-Ba-Cu-O ceramic superconductors", Nature vol. 32A; Aug. 13, 1987.
Tzeng, Y.; "High performance silver ohmic controls to YBa.sub.2 Cu.sub.3 O.sub.6+x superconductors"; Appl. Phys. Lett. 52(2); Jan. 11, 1988; pp. 155-156.
Orlando, T. P. et al., "Upper Critical Fields and Anistropy Limits of High T.sub.c Superconductor RE.sub.1 Ba.sub.2 Cu.sub.3 O.sub.7-y where RE=Nd, Eu, Gd, Dy, Ho, Er, and Tm and YBa.sub.2 Cu.sub.3 O.sub.7 -y"; Phys Rev. Lett; May 22, 1987.
Wu, X. D. et al.; "Epitaxial ordering of oxide superconductor thin films on (100) SrT.sub.1 O.sub.3 prepared by pulsed laser evaporation", Applied Physics Letters; vol. 51, No. 11; Sep. 14, 1987; (p. 861, column 2, lines 2-4).
EP-A-O 290 331 (Sumitomo) (Abstract; p. 3), lines 58-65; p. 10, lines 51-53.
Maissel et al.; Handbook of Thin Film Tech; (McGraw-Hill, N.Y.); c. 1970; pp. 749-752 and 23-12.
Nelson et al.; Chemistry of High-T Superconductors (ACS-Aug. 1987) pp. 308-312.
Jin, S. et al.; "Low-resistivity contacts to bulk high T.sub.c superconductors" Appl. Phys. Lett. 54(25); Jun. 19, 1989; pp. 2605-2607.
Ginley, D. S. et al.; "Grain Boundary Superconductivity in the YBa CuO System" Ex Abs High Temperature Superconductors, Proceedings Materials Research Society Spring Meeting; Apr. 23-24 1987; pp. 201-204.
Aoki, Haruyoshi, High-T.sub.c Superconductors Ba.sub.0.5 Y.sub.0.5 CuOx-Upper Critical Field and Phases; National Research Institute for Metals, Tokyo; Apr. 25, 1987; Japanese Journal of Applied Physics; May 1987; pp. L711-L713.
Ekin, J. W., "Method for Making low-resistivity contacts to high T.sub.c superconductors" Appl. Pys. Lett. 52(4); Jan. 25, 1988; pp. 331-333.

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

High T.sub.c superconducting unit having low contact surface res does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High T.sub.c superconducting unit having low contact surface res, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High T.sub.c superconducting unit having low contact surface res will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1068376

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