Here you may see the bill of materials of the 50 kN VTOL jet engine. In case the max temperature of carbom fiber composite is crossed also some other composite materials with higher max temperature could be used.

Main materials:

Carbon fiber composite: Dencity 1,75 kg/cm^2 (108,2 lb/ft^3), max temperature 200 C (392 F)

Nickel alloy: Dencity 8,253 kg/cm^2 (515,2 lb/ft^3), max temperature 1115 C (2039 F)

BOM kg

BOM lb