The development of ceramic matrix composite materials in my country continues to improve, with aerospace being its main application field.

Ceramic matrix composite materials are a type of composite materials produced by combining silicon nitride, silicon carbide and other ceramics as a matrix with various fibers. They have the characteristics of wear resistance, high temperature resistance, corrosion resistance, high hardness, high strength, light weight and good reliability. , high consistency, low thermal conductivity, low thermal expansion coefficient and other advantages, it can be divided into two categories: continuous reinforced composite materials and discontinuous reinforced composite materials.

Ceramic matrix composite materials can be produced by gas infiltration method, powder dispersion method, sol-gel method, chemical vapor infiltration method, reactive melt infiltration method, etc., and are mainly used in national defense, medical care, nuclear energy, photovoltaics, aerospace, transportation, electrical and electronics and other fields.

The molding process of ceramic matrix composite materials is relatively complex, requires high equipment, and has high preparation costs and long cycle times, so it is commonly used in high-precision fields. Aerospace is the main application area of ​​ceramic matrix composites. SiCf/SiC ceramic matrix composite materials have become a new generation of high-temperature resistant materials for aeroengines and are the key to improving aeroengine performance.

According to the “2023-2028 Ceramic Matrix Composite Materials Industry Market In-depth Research and Investment Prospect Forecast Analysis Report” released by the Industrial Research Center , the combustion chamber, nozzle, high-pressure turbine, low-pressure turbine, etc. are high-temperature components of aeroengines. In the past, they were mainly made of high-temperature alloys with a temperature resistance limit of about 1100°C. SiCf/SiC ceramic matrix composite materials can improve the temperature resistance of high-temperature components. The limit is raised to about 1350℃. In addition, compared with alloys, components made of ceramic matrix composite materials are lighter, which can effectively reduce fuel consumption during flight, increase flight capacity, and enhance green economic benefits. In recent years, my country’s aerospace industry has developed rapidly, and the demand for ceramic matrix composite materials has increased, which has promoted the rapid development of the ceramic matrix composite industry.

In addition, C/C-SiC ceramic matrix composite materials can be used in the field of brake disc manufacturing to create carbon brake discs that are lighter than metal brake discs, have better temperature resistance, high specific heat capacity, and long service life; C/C ceramic matrix composite materials It can be used in the field of biomedical materials to manufacture pelvises, bone spicules, skeleton plates, artificial tooth roots and other products; ceramic matrix composite materials can also be used in the field of environmental protection to produce ceramics with high temperature resistance, high filtration efficiency, long service life and good high temperature catalytic activity. Fiber composite functional membranes are used in high-temperature gas purification in fields such as coking, incineration, and biomass power generation. As the application technology of ceramic matrix composite materials in brake disc manufacturing, biomedical materials, environmental protection and other fields continues to mature, the industry will achieve further development.

Industrial analysts said that currently, the most widely used ceramic matrix composite materials on the market in my country are SiCf/SiC and Cf/SiC. Categories. Compared with developed countries such as Europe and the United States, the research on ceramic matrix composite materials in my country started late, but has developed rapidly. In recent years, breakthroughs have been achieved in the technical fields of preparation, processing, connection, and application of ceramic matrix composite materials. In the future, as the government continues to increase its support for new materials, the development of ceramic matrix composite materials in my country will continue to improve.