Hi, Does anyone have experience of making very low resistance copper-graphite fixed connections ? Is there anything I should use to coat the interface to minimise the resistance ? I am just using "naked" graphite and OFHC copper, with screws to clamp a copper washer on top of the sandwich. At 350A, I am dropping around 300mV, which is around 1 milliOhm, with a contact area of around 2 sq inch (~1300 mm^2)
Is one milliohm good ?
Thanks for suggestions.
Steve