Abstract
Future space travel needs ultra-lightweight and robust structural materials that can 10 withstand extreme conditions with multiple entry points to orbit to ensure mission reliability. This is unattainable with current inorganic materials, while ultra-highly stable carbon fibre reinforced polymers (CFRP´s) have shown susceptibility to environmental instabilities and electrostatic discharge, thereby limiting the full lightweight potential of CFRP. To improve space travel and structural engineering further, a robust CFRP is required. Here, we address these 15 challenges and present a superlattice nano-barrier enhanced CFRP (SNBE-CFRP) with a density of ~3.18 [g/cm 3 ] that blends within the mechanical properties of the CFRP, thus becoming part of the composite itself. We demonstrate composites with enhanced radiation resistance coupled with electrical conductivity (3.2x10-8 Ωm), while ensuring ultra-dimensionally stable physical properties even after temperature cycles from 77 to 573 K. 20