What is silicon carbide and what material is silicon carbide?

Sic, what's there to explain about this thing. You're talking about the use, right?

Silicon carbide - inorganic non-metallic material.

Emery, also known as silicon carbide (SiC), is made of quartz sand, petroleum coke (or coal coke), wood chips (salt needs to be added to the production of green silicon carbide) and other raw materials through a resistance furnace at high temperature. Silicon carbide is also found in nature as a rare mineral, moissanite.

Silicon carbide is also known as moissanite. Among the contemporary non-oxide high-tech refractory raw materials such as C, N, and B, silicon carbide is the most widely used and economical one, which can be called gold steel sand or refractory sand. At present, China's industrial silicon carbide is divided into black silicon carbide and green silicon carbide, both of which are hexagonal crystals, with a specific gravity of 2840 3320kg mm2.

Silicon carbide is a kind of carbide accidentally discovered by the American Acheson in the laboratory during the fused diamond experiment in 1891, and it was mistakenly thought to be a mixture of diamond, so it was named emery.

In 1893, Acheson developed the method of industrial smelting of silicon carbide, which is often called the Acheson furnace, which has been used to this day, using carbonaceous materials as the core of the resistance furnace, and heating the mixture of quartz SiO2 and carbon to generate silicon carbide.

Silicon carbideAlso known as moissineEmeryIt is one of the representatives of the third generation of semiconductor materials, which is an inorganic substance and is usedQuartz sand, petroleum coke (or coal coke), wood chips (salt needs to be added when producing green silicon carbide) and other raw materials are smelted at high temperature through resistance furnaces.

Using silicon carbide with corrosion resistance, high temperature resistance, high strength, good thermal conductivity, impact resistance and other characteristics, silicon carbide can be used for various smelting furnace linings, high-temperature furnace structure modification parts, silicon carbide plates, liners, supports, sagger, silicon carbide crucibles, etc.

On the other hand, it can be used for non-ferrous metal smelting Piwei industry's high-temperature indirect heating materials, such as vertical tank distillation furnaces, rectification furnace trays, aluminum electrolytic cells, copper melting furnace combustion and training linings, and zinc powder.

Arc plates and thermocouples for furnaces.

protective tubes, etc.; used to make wear-resistant, corrosion-resistant, high-temperature resistant, etc. It is also possible to make rocket nozzles, gas turbine blades, etc.

Types of silicon carbide

There are two commonly used basic varieties of silicon carbide, black silicon carbide and green silicon carbide, both of which belong to -SiC.

1. Black silicon carbide contains about 95% SiC, and its toughness is higher than that of green silicon carbide, which is mostly used to process materials with low tensile strength, such as glass, ceramics, stone, refractories, cast iron and non-ferrous metals.

2. Green silicon carbide contains more than 97% SiC, has good self-sharpening, and is mostly used for processing cemented carbide.

Titanium alloys and optical glasses are also used for honing cylinder liners and finely grinding HSS tools. In addition, there is cubic silicon carbide, which is a yellow-green crystal made by a special process, and is used to make abrasives suitable for superfinishing bearings.

Hello, no. The difference between the two: silicon carbide is an inorganic substance, which is smelted at high temperature by a resistance furnace with raw materials such as quartz sand, petroleum coke, and wood chips.

Industrial silicon, also known as metalloid silicon, is a product smelted by silica and carbonaceous reducing agent in a submerged arc furnace. The use of both: silicon carbide is mainly used in non-ferrous metal smelting, in the iron and steel industry, in the metallurgical beneficiation industry, in building materials and ceramics, in the grinding wheel industry, and in the application of energy saving.

Industrial silicon is used as a deoxidizer and alloying agent in the steelmaking industry, as an inoculant and nodularizing agent in the iron casting industry, and as a reducing agent in the production of ferroalloys.

Silicon carbide (SiC) is a special semiconductor material composed of carbon and silicon elements. Due to its unique physical and chemical properties, silicon carbide has a wide range of applications in many fields. Here are some of the main uses of silicon carbide:

Power electronics: Silicon carbide is widely used to manufacture high-performance, high-temperature, high-power power electronic devices, such as rectifiers, inverters, MOSFETS, IGBTS, etc. Due to the high breakdown electric field strength and high thermal conductivity of silicon carbide, it can work stably under high temperature and high voltage environment, improving the efficiency and reliability of electronic devices.

Optoelectronics: Silicon carbide also has applications in the field of optoelectronic devices, such as in the manufacture of high-power laser diodes and photovoltaic cells. Silicon carbide can operate in high-temperature environments and has a wide range of light absorption, making it suitable for high-performance optoelectronic devices.

Radio Frequency (RF) and Microwave Applications: Due to its high electron mobility and low losses, silicon carbide is used in the RF and microwave fields to manufacture high-frequency devices such as microwave power transistors and high-frequency circuits.

In-vehicle electronics and e-mobility technology: The high-temperature properties of silicon carbide make it suitable for use in in-vehicle electronics and e-mobility technology, which can improve the efficiency and range of electric vehicles.

High Temperature Sensors and Electronics: Due to the high temperature stability of silicon carbide, it can be used to manufacture high temperature sensors and electronics for monitoring and controlling various applications in high temperature environments.

Chemical industry and high-temperature applications: Silicon carbide is also used in the chemical industry due to its corrosion resistance and high-temperature stability, such as in the manufacture of corrosion-resistant pipes, reactors, and stoves.

In conclusion, as a superior semiconductor material, silicon carbide is suitable for high-performance and special applications in many fields, especially in environments that require high temperature, high power, high frequency, etc.

Founded in 2010, Meiman Laser is the head enterprise of industrial-grade solid-state lasers in China, and its products have unique advantages in hard material processing, which can be used to provide complete solutions in the fields of carbon fiber plate cutting, silicon carbide wafer scribing, silicon wafer marking, aluminum-based silicon carbide hot sink etching, diamond processing, and precision cutting of aviation-grade carbon fiber plates.

1. Manufacturing abrasives: Silicon carbide has extremely high hardness and wear resistance, so it is often used in the manufacture of abrasives, such as grinding wheels, grinding heads, grinding discs, abrasive belts, etc., which are widely used in the grinding and processing of metal, glass, ceramics, stone and other materials.

2. Manufacturing ceramics: Because silicon carbide has high corrosion resistance and heat resistance, it is widely used in the manufacture of ceramics, such as the production of ceramic tubes, porcelain plates, porcelain parts, electrical ceramics, etc.

3. Manufacturing high-temperature materials: Silicon carbide has excellent high-temperature performance and can work stably for a long time at high temperatures, so it is widely used in the manufacture of high-temperature materials, such as high-temperature charges, high-temperature pipes, high-temperature heating elements, etc.

4. Manufacturing optical materials: Silicon carbide has low scattering and absorption characteristics, which can be used to manufacture optical materials, such as reflective spinal dermatoscopes, lenses, lasers, etc.

5. Manufacturing electronic components: Silicon carbide has excellent electrical conductivity and thermal conductivity, so it is widely used in the manufacture of electronic field components, such as semiconductor devices, power modules, lighting devices, etc.

1. Abrasives and abrasives are mainly used to make grinding wheels, sandpaper, abrasive belts, oil stones, grinding blocks, grinding heads, and grinding pastes.

2. The use of silicon carbide has the characteristics of corrosion resistance, high temperature resistance, high strength, good thermal conductivity, impact resistance, etc., on the one hand, silicon carbide can be used in various smelting furnace linings, high-temperature furnace components, silicon carbide plates, liners, supports, sagger, silicon carbide crucibles, etc.

3. Functional ceramics, using the characteristics of silicon carbide thermal conductivity, thermal radiation, and high thermal intensity, to manufacture thin plate kiln furniture.

4. Metallurgical raw material, silicon carbide hardness is second only to diamond, with strong wear resistance, is an ideal material for wear-resistant pipes, impellers, pump chambers, cyclones, and bucket lining, and its wear resistance is cast iron. 5-20 times the service life of rubber & def is also one of the ideal materials for aviation flight runways.