Hydrostatic extrusion of in situ process superconductive wire for use in NMR magnets
Conference
·
· Adv. Cryog. Eng.; (United States)
OSTI ID:6019225
In the investigation reported here, a total of 33 Cu-Nb billets were hydrostatically extruded, a safe extrusion range was characterized by use of the extrusion ratio, and die semi-cone angle was mapped. Billet preparation, the preparation and insertion of the Sn-Cu core, and billet extrusion for the alloy Sn-5 wt% Cu are described. For drawing purposes, a billet that had been extruded at a 7-degree semi-cone die angle and 74% reduction in area was cold drawn without intermediate anneals from the extruded diameter of 0.192 in. to the final diameter of 0.0204 in. During drawing there were no signes of wire instability. The wires were successfully heat treated, and yielded an in situ superconductor with critical current densities comparable to that of smaller wires prepared from the same Cu-Nb ingot. Micrographs are provided.
- Research Organization:
- Intermagnetics General Corporation, Guilderland, NY
- OSTI ID:
- 6019225
- Report Number(s):
- CONF-810835-
- Conference Information:
- Journal Name: Adv. Cryog. Eng.; (United States) Journal Volume: 28
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comparison of cold hydrostatic extrusion with wire drawing as a method of manufacturing Nb/sub 3/Sn superconducting wires
Technical report on manufacture of Nb/sub 3/Sn superconducting wire by cold hydrostatic extrusion
COLUMBIUM $sub 4$H$sub 4$ SECTION PROGRAM. PHASE I. EXTRUSION. PHASE II. DRAWING. Interim Report I, July 1, 1963-October 1, 1963
Technical Report
·
Wed Dec 31 23:00:00 EST 1980
·
OSTI ID:5557831
Technical report on manufacture of Nb/sub 3/Sn superconducting wire by cold hydrostatic extrusion
Technical Report
·
Sun Dec 31 23:00:00 EST 1978
·
OSTI ID:6722761
COLUMBIUM $sub 4$H$sub 4$ SECTION PROGRAM. PHASE I. EXTRUSION. PHASE II. DRAWING. Interim Report I, July 1, 1963-October 1, 1963
Technical Report
·
Fri Oct 30 23:00:00 EST 1964
·
OSTI ID:4110227
Related Subjects
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
COPPER ALLOYS
CRYOGENICS
EXTRUSION
FABRICATION
HEAT TREATMENTS
HYDROSTATICS
IN-SITU PROCESSING
MAGNETIC RESONANCE
MATERIALS WORKING
NIOBIUM ALLOYS
NUCLEAR MAGNETIC RESONANCE
PROCESSING
RESONANCE
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TIN ALLOYS
WIRES
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
COPPER ALLOYS
CRYOGENICS
EXTRUSION
FABRICATION
HEAT TREATMENTS
HYDROSTATICS
IN-SITU PROCESSING
MAGNETIC RESONANCE
MATERIALS WORKING
NIOBIUM ALLOYS
NUCLEAR MAGNETIC RESONANCE
PROCESSING
RESONANCE
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TIN ALLOYS
WIRES