Composite ceramic superconducting wires for electric-motor applications. Annual report No. 2, 1 July 1989-30 June 1990
Several types of HTSC wire have been produced and two types of HTSC motors are being built. Hundreds of meters of Ag- clad wire were fabricated from YBawCu3O7x (Y-123) and Bi2Ca2Sr2Cu3O10 (BiSCCO). The DC homopolar motor coils are not yet completed, but multiple turns of wire have been wound on the coil bobbins to characterize the superconducting properties of coiled wire. Multifilamentary conductors were fabricated as cables and coils. The sintered polycrystalline wire has self-field critical current densities (Jc) as high as 2800 A/sq cm, but the Jc falls rapidly with magnetic field. To improve Jc, sintered YBCO wire is melt textured with a continuous process which has produced textures wire up to 0.5 meters long with 77K transport Jc above 11, 770 A/sq cm2 in self field and 2100 A/sq cm2 at 1 telsa. The Emerson Electric DC homopolar HTSC motor has been fabricated and run with conventional copper coils. A novel class of potential very powerful superconducting motors have been designed to use trapped flux in melt textures Y-123 as magnet replicas in an new type of permanent magnet motor. The stator element and part of the rotor of the first prototype machine exist, and the HTSC magnet replica segments are being fabricated.
- Research Organization:
- Ceramics Process Systems Corp., Milford, MA (USA)
- OSTI ID:
- 6219899
- Report Number(s):
- AD-A-225859/8/XAB; CPS-90-020; CNN: N00014-88-C-0512
- Country of Publication:
- United States
- Language:
- English
Similar Records
Composite ceramic superconducting wires for electric-motor applications. Quarterly report No. 3, 31 January 1989-31 March 1989
Composite ceramic superconducting wires for electric-motor applications. Annual report No. 1, 30 June 1988-30 June 1989
Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTING MOTORS
DESIGN
SUPERCONDUCTING WIRES
FABRICATION
BARIUM OXIDES
BISMUTH OXIDES
CALCIUM OXIDES
CERAMICS
CLADDING
COPPER
COPPER OXIDES
DIRECT CURRENT
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
PERMANENT MAGNETS
POLYCRYSTALS
PROCESSING
PROGRESS REPORT
SINTERING
STATORS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
TEXTURE
TRAPPING
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTALS
CURRENTS
DEPOSITION
DOCUMENT TYPES
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRIC MOTORS
ELECTRICAL PROPERTIES
ELEMENTS
MAGNETS
METALS
MOTORS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
SUPERCONDUCTING DEVICES
SUPERCONDUCTORS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WIRES
YTTRIUM COMPOUNDS
426001* - Engineering- Superconducting Devices & Circuits- (1990-)