Aleksander I Braginski

45759278, Mar 18, 1986

Jul 29, 1983

6/518597

Aleksander I. Braginski - Pittsburgh PA
Alan T. Male - Murrysville PA

Westinghouse Electric Corp. - Pittsburgh PA

H01L 3912
H01L 3924

29599

A submicron-particle ductile superconductor and method of fabricating the same wherein the submicron particles (e. g. , 300 Angstroms) of a superconductor (e. g. , NbC) are encapsulated in a metal tube (e. g. , copper) and then fabricated down to fine wire in the absence of sintering of reaction annealing. Because of the fluid-like properties of the unsintered submicron-particle powdered core, the composite fabricated wire retains ductility and resistance to fracture while exhibiting superconducting properties approaching those of the bulk material in the core. Multifilamentary composites are obtained by bundling and fabricating the bundle down in a required number of steps.

39797376, Sep 7, 1976

Sep 20, 1974

5/508003

Aleksander I. Braginski - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

G11C 1114
G11C 1142

340174TF

A magnetic film is incorporated in a device suitable for use with a computer; the film is capable of supporting magnetic bubble domains of two different sizes corresponding to stable hysteresis states which exist simultaneously under the same external magnetic field bias. When densely packed in an array, the bistable magnetic bubble domains form the basis for binary coded data storage. Single crystal garnet and amorphous intermetallic compounds may be employed as bistable bubble domain materials.

44119593, Oct 25, 1983

Aug 17, 1981

6/293537

Aleksander I. Braginski - Pittsburgh PA
Alan T. Male - Murrysville PA

Westinghouse Electric Corp. - Pittsburgh PA

H01B 1200

428558

A submicron-particle ductile superconductor and method of fabricating the same wherein the submicron particles (e. g. , 300 Angstroms) of a superconductor (e. g. , NbC) are encapsulated in a metal tube (e. g. , copper) and then fabricated down to fine wire in the absence of sintering of reaction annealing. Because of the fluid-like properties of the unsintered submicron-particle powdered core, the composite fabricated wire retains ductility and resistance to fracture while exhibiting superconducting properties approaching those of the bulk material in the core. Multifilamentary composites are obtained by bundling and fabricating the bundle down in a required number of steps.

44370806, Mar 13, 1984

Feb 14, 1983

6/465942

John W. Ekin - Boulder CO
John R. Gavaler - Pittsburgh PA
Aleksander I. Braginski - Pittsburgh PA

The United of America as represented by the Secretary of Commerce and
the Secretary of the Air Force - Washington DC
The United States of America as represented by the Secretary of the Air
Force - Washington DC

H01F 722

335216

Method and apparatus are disclosed utilizing superconducting elements with extended strain operating range capabilities. The superconducting element is formed from a crystalline compound superconductive material that does not exhibit appreciable critical current degradation in the presence of high elastic strains imposed on the element. Such a crystalline compound superconductive material is selected from materials in the B1 and C15 crystal structure classes. The thus formed superconducting element is particularly useful in electromagnets requiring high magnetic fields for operation in the intended manner.

48638048, Sep 5, 1989

Nov 29, 1985

6/802900

Graham A. Whitlow - Murrysville PA
Alan T. Male - Murrysville PA
Aleksander I. Braginski - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

H01L 3924

428555

Superconductor wire, and methods of constructing same, including one or more filaments formed of submicron-particle superconductor powder each surrounded by an encapsulating sheath having a composite wall. The composite wall includes a ductile outer skin surrounding a relatively harder, higher yield strength inner wall portion. The harder, higher strength inner wall portion improves dimensional uniformity of the filaments as the wire is fabricated, with the potential for enhanced superconducting performance, while the ductile outer skin enhances metallurgical bonding between the outer skins of adjacent filaments, to ensure a homogenous, thermally conductive and normally electrically conductive matrix.