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What is the best material to withstand the nominal current of 10Amps (1000Amps peak) between two contacts with no solder?

You would want to choose a material with the lowest specific resistivity, the highest melting point that does not form an oxide [this would no doubt interfere with the electrical contact]. Realize however that there is a BIG difference between 10 amps and 1000 amps because the electrical energy goes as the current squared, so 1000 amps produces 10,000 times the heat as 10 amps.

Vince Calder

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