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Selection and testing of high current contact materials for tokamak devices

Conference · · Nucl. Technol./Fusion; (United States)
OSTI ID:6184182
Materials for potential use in tokamak first wall high current connectors were selected and tested under conditions that might be encountered in tokamak devices. Disk-shaped specimens of promising metal mixtures were subjected to current densities approaching 23 kA/cm/sup 2/ (150 kA/in/sup 2/) in 8 ms pulses, closing pressures ranging from .07 to 2.1 MPa (10 to 300 psi), and a vacuum of 1.3 X 10/sup -1/ Pa (10/sup -3/ Torr). Contact welding occurred at moderate to low pressure and moderate currents. The resulting welds were very weak, failing at 18-31 N (4-7 lb) in shear.
Research Organization:
McDonnell Douglas Astronautics Company, St. Louis Div., P.O. Box 516, St. Louis, MO 63166
OSTI ID:
6184182
Report Number(s):
CONF-830406-
Conference Information:
Journal Name: Nucl. Technol./Fusion; (United States) Journal Volume: 4:2
Country of Publication:
United States
Language:
English