Abstract
Copper is an important component to produce a stable and protected superconducting magnet.
The electrical properties of commercially available copper under magnetic field and mechanical force are discussed.
The resistivity of OFHC copper under magnetic field more than 10kG increases steadily with a gradient of about 4.5×10-10Ω-cm/kG. The gradient is independent of the amount of cold work.
The resistivity ratio (ρ300°K/ρ4.2°K) of Electrolytic tough pitch copper is better than OFHC copper.
The resistivity ratios of commercially available ETP copper are 150-350 and those of OFHC copper are 120-250.
