“…The concept of MBTBCs greatly depends on the fundamental demand of low thermal conductivity, which deviates from the understanding of conventional metals, which are generally regarded as good conductors. Metallic glasses, accordingly, have come into sight owing to their high defect density originating from their disordered structure, which can scatter heat carriers intensively and result in abnormally low thermal conductivity. ,,− In this group, Fe-based amorphous alloys preferably satisfy engineering needs in view of their combination of a relatively high glass-forming ability and crystallization temperature, excellent wear resistance, and obvious cost efficiency. − Some Fe-based amorphous coatings prepared by high-frequency induction plasma spraying (IPS), high-velocity oxygen-fuel spraying (HVOF), atmospheric plasma spraying (APS), and wire-arc spraying (AS) present the expected low thermal conductivities in the range of 2–3 W/mK, − , thus making them proper candidates for MBTBCs.…”