Excelentes propiedades y campos de aplicación de las cerámicas de carburo de silicio
Excelentes propiedades y campos de aplicación de las cerámicas de carburo de silicio
As a high-performance structural ceramic material, silicon carbide ceramics have excellent comprehensive properties that are unmatched by structural materials such as metals:
(1) Resistencia a altas temperaturas, Pequeña fluencia a alta temperatura, Adecuado para diversos entornos de alta temperatura.
(2) Bajo coeficiente de expansión térmica, Alta conductividad térmica, y excelente resistencia al choque térmico.
(3) Alta estabilidad química y excelente resistencia a la corrosión.
(4) Alta dureza, Bajo coeficiente de fricción, Excelente resistencia al desgaste.
(5) Baja densidad, Alto módulo elástico.
(6) The resistivity characteristics can be tailored and can be used as semiconductor characteristics, so it can be widely used in many fields.
Carburo de silicio ceramics are usually used as high-temperature kiln furniture materials in roller kilns, tunnel kilns, and shuttle kilns in high-grade daily ceramics, sanitary porcelain, high-voltage electric porcelain, glass and other industries.
Silicon carbide ceramics have outstanding high temperature strength, excellent high temperature creep resistance and thermal shock resistance, and are one of the main materials for heat engine components in rockets, aircraft, automobile engines and gas turbines.
Por ejemplo, the AGT100 automotive ceramic gas turbine developed by General Motors uses silicon carbide ceramics as high-temperature components such as combustion chamber rings, combustion chamber cylinders, guide vanes and turbine rotors.
Silicon carbide ceramics are also considered to be one of the most promising high-performance bulletproof armor materials. The hardness of silicon carbide is second only to diamond and boron carbide.
En los últimos años, silicon carbide ceramic bulletproof armor has been more and more widely used in armor protection fields such as individual soldier equipment, army armored weapon platforms, armed helicopters, police and civilian special vehicles.
Silicon carbide ceramic materials have excellent mechanical, termal, chemical and physical properties. They are not only widely used in traditional industrial fields, but also in high-tech fields such as semiconductors, energía nuclear, and national defense. The application is also expanding, and the application prospect is very broad.