What are the advantages of structural ceramics?
Structural ceramic manufacturers believe that materials are the basis of information and energy, the material basis of human production and life, and the symbol of human progress and civilization. With the development of computer, electronic information, communication, new energy, new light source, aerospace, marine biological engineering and other emerging industries. Higher requirements are placed on materials. Advanced ceramic materials that can meet the needs of these emerging industries have emerged and are playing an increasingly important role in these industries
According to performance and usage, ceramics can be divided into functional ceramics and structural ceramics . The function of ceramics is mainly based on the special functions of materials, with electrical properties, magnetic properties, biological properties, thermal sensitivity and optical properties, etc., mainly including insulating and dielectric ceramics, ferroelectric ceramics, piezoelectric ceramics, semiconductors and their sensitive ceramics etc. Structural ceramics are mainly based on the mechanical and structural uses of materials, and have the characteristics of high strength, high hardness, high temperature resistance, corrosion resistance, and oxidation resistance. They mainly include oxide ceramics, nitride ceramics, carbide ceramics, and boride ceramics.
The properties of structural ceramics are mainly influenced by the crystal structure of chemical bonds and crystal defects. In terms of crystal structure, the bonding force between atoms of ceramic materials is ionic bond, covalent bond, etc. These chemical bonds have the performance advantages of high structural strength and strong directionality. A notable feature of structural ceramics is the heterogeneity and complexity of their microstructures.
(1) Compared with other metal materials, the advantages of structural ceramics are mainly manifested in: excellent high-temperature mechanical properties, chemical corrosion resistance, high-temperature oxidation resistance, wear resistance, etc. It is precisely because of these performance advantages that they have gradually replaced the status of expensive metal resources in various fields, and are of great value to the development of saving scarce resources.
(2) Structural ceramics are one of the more suitable materials in industrial materials in terms of stiffness and hardness. Conventional structural ceramic materials have a high melting point and can maintain good chemical stability at high temperatures, while the thermal conductivity of ceramic materials is lower than other metal materials, so it is also a good heat insulation material.
(3) Most structural ceramics have good electrical insulation properties, therefore, they are mostly used as insulating electrical devices at various voltages.
(4) Ceramic materials have special chemical properties and can be used as solid-state laser materials, optical fiber materials, optical storage, etc. It also has high application value in many aspects such as audio tapes, records, and computer storage components.
Structural ceramic materials are mainly used in the industrial field, and are widely used in the automobile manufacturing industry due to their own performance advantages and stability. In recent years, structural ceramics have gradually occupied a place in the high-tech field, and their importance has continued to increase.
With the rapid development of China's economic level, infrastructure construction has been strengthened. Structural ceramics, as the main application materials in the machinery industry, are also facing increasingly fierce market competition in the process of rapid development. At present, the most common application materials in various fields in our country are metals, which have a history of hundreds of years. Although it has been improved repeatedly, due to the limitation of its own conditions, it gradually fails to meet the requirements of wear resistance and corrosion resistance, which seriously affects the operation stability of various application systems. Structural ceramics have obvious performance advantages and will become the main application materials in various fields in the future, with good development prospects.