Hard nanocomposite coatings: Thermal stability, oxidation resistance and toughness

► Enhanced hardness and thermal stability of nanocomposites ► X-ray amorphous coatings thermally stable above 1000 °C ► Protection of the substrate by coating against oxidation up to ~ 1500 °C ► Hard coatings composed of nanograins dispersed in an amorphous matrix ► Hard coatings with enhanced toughness and enhanced resistance to cracking