Copper Alloys in Fusion

High-conductivity alloys that carry heat away behind the armour.

Use

Heat sinks

Alloy

CuCrZr

Copper alloys such as CuCrZr combine excellent thermal conductivity with enough strength to serve as actively-cooled heat sinks beneath plasma-facing armour. They are standard in divertor and first-wall heat-removal structures.

On the burner side, copper's reflectivity is also relevant to the liner, traded against activation.