Comparison of cold hydrostatic extrusion with wire drawing as a method of manufacturing Nb/sub 3/Sn superconducting wires
The first objective was to assess the merits of cold hydrostatic extrusion as an alternative metal forming process and to compare it with conventional wire drawing. A series of Nb/sub 3/Sn monofilamentary wires was prepared by cold hydrostatic extrusion. Another series of conductors was prepared by wire drawing. These wires had identical materials, dimensions, bronze-to-niobium ratios and diffusion treatment as the extruded wires. A direct comparison showed that cold hydrostatic extrusion can serve as a good alternative to the wire drawing technique of manufacturing Nb/sub 3/Sn wires because cold hydrostatic extrusion reduces the number of processing steps, i.e., fewer passes and fewer intermediate anneals. The second objective was to evaluate important superconducting properties of the hydrostatically extruded samples. The effect of strain on critical current density, J/sub c/ at 4.2K and 8T was examined.
- Research Organization:
- Lehigh Univ., Bethlehem, PA (USA). Dept. of Metallurgy and Materials Engineering
- DOE Contract Number:
- AS02-79ER10367
- OSTI ID:
- 5557831
- Report Number(s):
- DOE/ER/10367-7; ON: DE82007533
- Resource Relation:
- Other Information: Thesis
- Country of Publication:
- United States
- Language:
- English
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Comparison of hydrostatic extrusion versus wire drawing as a method of producing Nb/sub 3/Sn superconducting wire
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
NIOBIUM COMPOUNDS
COLD WORKING
EXTRUSION
SUPERCONDUCTING WIRES
TIN COMPOUNDS
PERFORMANCE
SUPERCONDUCTIVITY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
MATERIALS WORKING
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
WIRES
360101* - Metals & Alloys- Preparation & Fabrication
420201 - Engineering- Cryogenic Equipment & Devices