Composite ceramic superconducting wires for electric-motor applications. Quarterly technical report No. 6, 1 October-31 December 1989

Technical Report · Wed Jan 31 00:00:00 EST 1990

OSTI ID:6819651

Halloran, J W

This report describes progress on developing YBa{sub 2}Cu{sub 3}O{sub 7-X} (Yttrium Barium Copper Oxide-X) wire for an High Temperature Superconductor motor. The wire development activity includes synthesis of Y-123 powder, spinning polymer-containing green fiber, heat treating the fiber to produce metallized superconducting filaments, and characterizing the electrical properties of the filaments. Green fiber is produced in lengths up to 1.5 kilometers. The green clad fiber is converted to silver-clad superconducting wire by a sintering operation. The sintered wire has a Amperes per centimeters squared (77 deg) up to 2800 Angstrom per centimeters in self field, dropping to low values in magnetic fields. Directional solidification efforts are underway to improve the critical current density. The construction of the first prototype HTSC homopolar motor is in progress. The design specifies a 575 ampere-turn HTSC coil. The current collection system has been tested in liquid nitrogen. Motor performance has been predicted based on actual Jc(B) behavior of wire samples. Motor power and losses have been calculated. The efficiency of this initial machine is limited by the magnetic fields obtainable from present HTSC wire coils.

• Research Organization: Ceramics Process Systems Corp., Milford, MA (USA)
• OSTI ID: 6819651
• Report Number(s): AD-A-219131/0/XAB; CPS-90-001
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
FABRICATION
COPPER OXIDES
SUPERCONDUCTING WIRES
YTTRIUM OXIDES
CERAMICS
CLADDING
COMPOSITE MATERIALS
CURRENT DENSITY
ELECTRIC MOTORS
ELECTRICAL PROPERTIES
FIBERS
FILAMENTS
HIGH TEMPERATURE
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
NITROGEN
OPERATION
POLYMERS
POWER
PROGRESS REPORT
SAMPLING
SINTERING
SOLIDIFICATION
SYNTHESIS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
DEPOSITION
DOCUMENT TYPES
ELEMENTS
MATERIALS
MOTORS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
WIRES
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
656100 - Condensed Matter Physics- Superconductivity