Thermal barrier systems and methods for access delay
Scott H. Brooks · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2025
Protective barrier includes a soft metal that inhibits or delays thermal or grinding attack tool penetration. The soft metal, which may be disposed between other layers and otherwise delays thermal attack by expanding or “puffing” during attack. The soft metal can inhibit mechanical attack by rapid ablation and wear of a cutting wheel or blade. The protective barrier may additionally include an oxide or carbide layer.