Abstract: This application describes a thermal interface material, and preparation and application thereof. Specifically, a thermal interface material is described. The thermal interface material is obtained by bending and folding, optional horizontal pressing and optional high-temperature treatment of a laminated structure. Two-dimensional high-thermal-conductivity nano-plates on the upper surface and the lower surface of the thermal interface material have a horizontal stack structure. Two-dimensional high-thermal-conductivity nano-sheets located between the upper surface and the lower surface of the thermal interface material have both a vertical stack structure and a curved stack structure. Also described are a preparation method and application of the thermal interface material.

Abstract: A Cr—Mn—N austenitic heat-resistant steel is provided. The heat-resistant steel comprises, in weight percentage, carbon 0.20% to 0.50%, silicon 0.50% to 2.00%, manganese 2.00% to 5.00%, phosphorus less than 0.04%, sulphur less than 0.03%, chromium 20.00% to 27.00%, nickel 6.00% to 8.00%, molybdenum less than 0.50%, niobium less than 0.60%, tungsten less than 0.60%, vanadium less than 0.15%, nitrogen 0.30% to 0.60%, zirconium less than 0.10%, cobalt less than 0.10%, yttrium less than 0.10%, boron less than 0.20%, with the balance iron. The heat-resistant steel has high temperature strength, high thermal conductivity, low thermal expansion coefficient, good dimensional stability, good ductility, heat resistance, impact resistance, and low production costs, and meets the requirements for high performance engines.

Abstract: This application describes a thermal interface material, and preparation and application thereof. Specifically, a thermal interface material is described. The thermal interface material is obtained by bending and folding, optional horizontal pressing and optional high-temperature treatment of a laminated structure. Two-dimensional high-thermal-conductivity nano-plates on the upper surface and the lower surface of the thermal interface material have a horizontal stack structure. Two-dimensional high-thermal-conductivity nano-sheets located between the upper surface and the lower surface of the thermal interface material have both a vertical stack structure and a curved stack structure. Also described are a preparation method and application of the thermal interface material.

Abstract: A Cr—Mn—N austenitic heat-resistant steel is provided. The heat-resistant steel comprises, in weight percentage, carbon 0.20% to 0.50%, silicon 0.50% to 2.00%, manganese 2.00% to 5.00%, phosphorus less than 0.04%, sulphur less than 0.03%, chromium 20.00% to 27.00%, nickel 6.00% to 8.00%, molybdenum less than 0.50%, niobium less than 0.60%, tungsten less than 0.60%, vanadium less than 0.15%, nitrogen 0.30% to 0.60%, zirconium less than 0.10%, cobalt less than 0.10%, yttrium less than 0.10%, boron less than 0.20%, with the balance iron. The heat-resistant steel has high temperature strength, high thermal conductivity, low thermal expansion coefficient, good dimensional stability, good ductility, heat resistance, impact resistance, and low production costs, and meets the requirements for high performance engines.