Ceramic material is an inorganic non-metallic material made of natural or synthetic compounds through sintering and high-temperature sintering. It is characterized by high hardness, high wear resistance, and oxidation resistance. It is commonly used in current decoration. So what types of ceramic materials, which properties of ceramic materials? Xiao Bian inventory for everyone under it!
What are the types of ceramic materials
1. Ordinary ceramic materials
Ordinary ceramic materials are composed of natural raw materials, such as feldspar, clay and quartz, which are typical silicate materials, which are sintered. Ordinary ceramic materials have rich sources, low cost, and mature technology. They can be divided into daily-use ceramics, building ceramics, and chemical ceramics according to performance characteristics and uses.
2. Special ceramic materials
This material is mainly made of high-purity synthetic raw materials, formed by precise control process forming and sintering. It has certain special properties to meet various needs. Its main components are oxide ceramics, nitride ceramics, and cermets. Wait.
3. Nano ceramic
At present, the grains of advanced ceramics no matter the raw materials used or the grains after finishing are micrometers, so they are also called micrometer ceramics. When the grains of raw materials and finished materials reach the nanometer scale, they will be the preparation science, ceramics, ceramics The process brings mutations, thereby opening up a wider range of uses for ceramic materials.
What are the properties of ceramic materials
1. Thermal performance
The main performance of ceramic materials is thermal properties, usually with a very high melting point (mostly above 2000 ℃), and has a strong chemical stability at high temperatures. At the same time, ceramic is also a good thermal insulation material. Its linear expansion coefficient is lower than that of metal. Even when the temperature changes, its stability is also very good.
2. Electrical performance
Most ceramic materials have good electrical insulation, so they are often used to make insulating devices of various voltages. Ferroelectric ceramics have a high dielectric constant and can be used to make capacitors. Under the action of an external electric field, ferroelectric ceramics can also change shape and convert electrical energy into mechanical energy (with the characteristics of piezoelectric materials), which can be used as record players and ultrasonic Instrument, medical spectrometer, etc.
3. Chemical properties
The chemical properties of ceramic materials are also very good, it is not easy to oxidize at high temperatures, and it has good corrosion resistance to acids, alkalis and salts.
4. Optical performance
Ceramic materials also have unique optical properties, and are now commonly used as solid laser materials, optical fiber materials, optical reservoirs, etc. Transparent ceramics can be used for high-pressure sodium lamps. The application of magnetic ceramics in audio tapes, records, and large computer memory components has a broad future.
These are the small series of ceramic materials to introduce to the types of content which performance ceramic materials have, I do not know whether we understand it? Ceramic materials used are common in the present life, so information about it can be more about the next .
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