Composite-ceramic superconducting filaments for superconducting cable. Interim progress report, 16 October-15 December 1987

Technical Report · Mon Jan 05 04:00:00 EST 1987

OSTI ID:7246498

Halloran, J W

This is the second progress report of a five-month program to demonstrate the feasibility of manufacturing superconducting wires from YBa/sub 2/Cu/sub 3/0/sub 7/-x, consisting of a small ceramic core with a copper cladding. The ceramic core is to be produced from a dry-spun ceramic fiber, sintered to create a <010> fiber texture to enhance critical current. The sintered fiber is to be clad with copper by electroplating. The sintering and microstructure development of YBa/sub 2/Cu/sub 3/0/sub 7/-x was characterized for as-calcined and milled powder, both as undoped and doped with 5wt% CuO. The undoped powder reaches 94% density, with fully recrystallized grains after 15 hours at 955 C. The CuO doped material sinters to full density at temperatures as low as 925 C, with extensive recrystallization. The resistivity was measured as a function of temperature for nearly dense and relatively porous undoped material.

• Research Organization: Ceramics Process Systems Corp., Cambridge, MA (USA)
• OSTI ID: 7246498
• Report Number(s): AD-A-190701/3/XAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
&amp; Refractories-- Preparation &amp; Fabrication
420201* -- Engineering-- Cryogenic Equipment &amp; Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CABLES
CERAMICS
CHALCOGENIDES
CLADDING
CONDUCTOR DEVICES
COPPER COMPOUNDS
COPPER OXIDES
DENSITY
DEPOSITION
DOCUMENT TYPES
ELECTRIC CABLES
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRODEPOSITION
ELECTROLYSIS
ELECTROPLATING
EQUIPMENT
FABRICATION
FIBERS
FILAMENTS
LYSIS
MANUFACTURING
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLATING
POROUS MATERIALS
POWDERS
PROGRESS REPORT
RECRYSTALLIZATION
SINTERING
SUPERCONDUCTING CABLES
SUPERCONDUCTIVITY
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES