Composite ceramic superconducting wires for electric-motor applications. Annual report No. 1, 30 June 1988-30 June 1989

Technical Report · Fri Jul 07 00:00:00 EDT 1989

OSTI ID:5572636

Holloran, J W

This report describes progress on developing Y-123 wire for an HTSC motor. The wire development involves synthesis of Y-123 powder, spinning polymer-containing green fiber, heat treating the fiber to produce metallized superconducting filaments, and characterizing the electrical properties. A melt spinning process was developed for producing 125-micron-diameter green fiber containing 50 vol% Y-123. This fiber can be braided for producing transposed multifilamentary wire. A process was developed to coat green fiber with silver alloys which can be continuous sintering. A second process for multifilamentary ribbon wire is also being developed. The Y-123 filaments have 77 deg self-field Jc values up to 2600 A/sq cm, but Jc is reduced to 10 A/sq cm at 800 G. Preliminary data are presented on mechanical properties. A DC homopolar motor with an iron magnetic circuit is being designed to operate with early HTSC wire.

• Research Organization: Casazza, Schultz and Associates, Inc., Arlington, VA (USA)
• OSTI ID: 5572636
• Report Number(s): AD-A-210345/5/XAB; CPS-89-009
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
36 MATERIALS SCIENCE
CERAMICS
WIRES
ELECTRIC MOTORS
COMPOSITE MATERIALS
ELECTRICAL PROPERTIES
FIBERS
FILAMENTS
IRON
MAGNETIC CIRCUITS
MECHANICAL PROPERTIES
PROGRESS REPORT
SILVER ALLOYS
SINTERING
ALLOYS
DOCUMENT TYPES
ELEMENTS
FABRICATION
MATERIALS
METALS
MOTORS
PHYSICAL PROPERTIES
TRANSITION ELEMENTS
420201* - Engineering- Cryogenic Equipment & Devices
360204 - Ceramics
Cermets
& Refractories- Physical Properties