Technical
The Plasma-Facing Materials Suite
The armour and heat sinks that survive facing the plasma.
- Pair
- Tungsten + CuCrZr
Plasma-facing components pair refractory armour (tungsten) with copper-alloy heat sinks (CuCrZr), bonded by processes like HIP, rated for 1.97 MW/m2 on the breeder. On the burner, a reflective liner is the deciding plasma-facing choice.
These surfaces are designed for inspection and replacement.
Common questions
What is in the plasma-facing materials suite?
Tungsten armour on precipitation-strengthened copper-alloy heat sinks, rated for the breeder's 1.97 MW/m2 first-wall load — chosen for heat tolerance, low erosion and low fuel retention.
Are these permanent?
No — they are consumables designed for remote inspection and replacement, because they live in the machine's harshest environment.