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Could high-entropy alloys—a combination of different metals in roughly equal concentration—turn out to be THE material for fusion reactors? That's the question materials physicists from the University of Helsinki (Finland) and the Oak Ridge National Laboratory (US) are investigating.

The concept behind the creation of these alloys is ten years old and was first proposed by metallurgists. But based on work done at Oak Ridge, where these new hybrid metals were being tested under the influence of radiation, researchers in Finland began running experiments and simulations using different mixtures with nickel.

High-entropy alloys appear to be much more resistant to radiation than pure alloys. To date, the labs at Oak Ridge and the University of Helsinki have just combined two, three or four elements, whereas millions of possible combinations exist.

See the report on the EUROfusion .