Reinforced aluminium conductor for cryogenic applications
Conference
·
· IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:5646955
- Alcoa Lab., Alcoa Center, PA (US)
Extreme purity aluminum has very attractive electrical properties at temperatures below 25 K which makes it competitive with conventional superconductors for cryogenic applications. Besides its inherently low density, its resistivity decreases by several orders of magnitude over its room temperature value thus making it suitable for use in lightweight high current density devices. This paper describes the fabrication of a 99.999% aluminum conductor reinforced by a powder metallurgy (P/M) processed Al-Fe-Ce alloy. Long continuous lengths of composite conductors consisting of 1, 4 and 19 Al filaments have been produced by streamline die hot extrusion and cold working by conventional wire drawing or cold hydrostatic extrusion. Microstructural observations and some limited electrical resistivity and mechanical property data are presented along with an analysis of the contamination of high purity Al conductors by diffusion during annealing.
- OSTI ID:
- 5646955
- Report Number(s):
- CONF-9004136--
- Conference Information:
- Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
360104* -- Metals & Alloys-- Physical Properties
661210 -- Cryogenics-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
ALUMINIUM ALLOYS
ANNEALING
CERIUM ALLOYS
COLD WORKING
CRYOGENIC STORAGE DEVICES
CRYOGENICS
CRYSTAL STRUCTURE
CURRENT DENSITY
DIFFUSION
ELECTRICAL PROPERTIES
FABRICATION
HEAT TREATMENTS
IRON ALLOYS
MATERIALS
MATERIALS TESTING
MATERIALS WORKING
MECHANICAL PROPERTIES
MEMORY DEVICES
METALLURGY
MICROSTRUCTURE
PHYSICAL PROPERTIES
POWDER METALLURGY
RARE EARTH ALLOYS
REINFORCED MATERIALS
TECHNOLOGY UTILIZATION
TESTING
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
360104* -- Metals & Alloys-- Physical Properties
661210 -- Cryogenics-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
ALUMINIUM ALLOYS
ANNEALING
CERIUM ALLOYS
COLD WORKING
CRYOGENIC STORAGE DEVICES
CRYOGENICS
CRYSTAL STRUCTURE
CURRENT DENSITY
DIFFUSION
ELECTRICAL PROPERTIES
FABRICATION
HEAT TREATMENTS
IRON ALLOYS
MATERIALS
MATERIALS TESTING
MATERIALS WORKING
MECHANICAL PROPERTIES
MEMORY DEVICES
METALLURGY
MICROSTRUCTURE
PHYSICAL PROPERTIES
POWDER METALLURGY
RARE EARTH ALLOYS
REINFORCED MATERIALS
TECHNOLOGY UTILIZATION
TESTING