Materials scientists at the Russian National University of Science and Technology have developed a hafnium cyanide ceramic that can theoretically withstand high temperatures of 4200 degrees Celsius. Related research results were published in the journal "International Ceramics". The high temperature resistance and high hardness of this new material have been confirmed by computer modeling prediction.
Prior to this, the world's most recognized high temperature resistant and most difficult to melt man-made substance was tantalum hafnium carbide.
In an interview with reporters, Dmitry Moskovsky, director of the Research Center for Structural and Ceramic Nanomaterials of the National University of Science and Technology, said: "In order to obtain new materials, we have adopted a hafnium-carbon-nitrogen triple complex system, which is self-diffusion. The high-temperature synthesis method obtained hafnium cyanide, which is nitrogen-rich hafnium carbide. "
According to the report, scientists believe that this new high temperature resistant material will be used to manufacture aerospace equipment and special military technical equipment. When the aircraft is flying at hypersonic speeds or penetrating the atmosphere, its engines, airfoils and fairings must withstand high temperatures above 2,000 degrees Celsius, and must be able to withstand the effects of the external environment. The surface of these devices is generally covered with a strong and refractory ceramic composite thermal insulation protective layer.