Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1988-08-02
1990-04-10
Morgenstern, Norman
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
505729, 505732, 505742, 427 62, 4272552, 4272553, 4272557, 156614, B05D 512, C23C 1600
Patent
active
049161148
ABSTRACT:
With the method a layer-like composition of an oxide-ceramic superconducting material with a high transition temperature and great current carrying capacity on the basis of a materials system containing metallic components and oxygen can be prepared. The method is to be improved in the direction that layers with great current-carrying capacity can be formed also on non-monocrystalline substrates. It is provided for this purpose that a multi-layer layer of the superconductive material is applied on a fine-crystalline substrate by first making successive layers of individual films with a respective film thickness under 10 nm, and then this multilayer structure is converted into the desired superconducting phase by means of supplying oxygen and at a temperature below 400.degree. C. For developing each individual film, the metallic components of the system are applied to the substrate that may be available, by means of a physical deposition process and while oxygen is being supplied, at a temperature below 400.degree. C., and by means of short thermal pulses a column structure is generated which comprises columns tightly packed with c-axes at least approximately perpendicular to the respective underlayer.
REFERENCES:
patent: 4316785 (1982-02-01), Suzuki et al.
de Lima et al, App. Phys. Lett., vol. 51, No. 5, 3 Aug. 87, 369-370.
Escudero, Jap. J. of Appl. Phys. Lett., vol. 26, No. 6, Jun. 87, L1019-1020.
Robinson, Science, 5 Jun. 1987, p. 1189.
Politis et al, MRS Conference, Apr. 23-24, 1987, pp. 141-144.
Phys. Rev. Lett., vol. 58, No. 5, Jun. 22, 1987, pp. 2684-2686.
Japanese Journal of Applied Physics, vol. 26: No. 2, 2/2/87, pp. L123-L124; No. 4, Apr. 1987, pp. L377-L379; No. 5, May 1987, L815-L817; No. 6, Jun. 1987, pp. L923-L925, and No. 7, Jul. 1987, pp. L1248-L1250.
Europhys. Lett., 3 (12), pp. 1301-1307 (1987).
Frankfurter Allgemeine Zeitun, No. 166, 7/22/87, Part: Natur und Wissenschaft, pp. 21 and 22.
J. Am. Chem. Soc. 1987, 109, pp. 2838-2849.
Izvestija Akademii Nauk SSSR, Ser. Fiz., vol. 39, No. 5, 5/57, pp. 1080-1083.
Can. J. Phys., vol. 63, 1985, pp. 881-885.
MRS Symp of High Temperature Superconductors, Anaheim, Calif., Apr. 1987, by R. H. Hammon et al.
Eaton Corp., Danvers, Mass.: "ROA-400 Rapid Thermal Processor".
Peak Systems, Inc., Freemont, Calif., "ALP 6000 Rapid Thermal Processing".
"Anistropy of the Superconducting Magnetic Field H.sub.c2 of a Single Crystal of TmBa.sub.2 Cu.sub.3 O.sub.7 ", by H. Noel et al.
Bueker Margaret
Morgenstern Norman
Siemens Aktiengesellschaft
LandOfFree
Method for producing a layer-like composition of oxide-ceramic s 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 producing a layer-like composition of oxide-ceramic s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing a layer-like composition of oxide-ceramic s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2299174