The role of silicon carbide in three fields

2022-06-22
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The role of silicon carbide in three fields

silicon carbide was first discovered in meteorites in 1905. Now it mainly comes from artificial synthesis. Silicon carbide has many uses and a wide range of industries. It can be used as engineering processing materials for monocrystalline silicon, polycrystalline silicon, potassium arsenide, quartz crystal, etc., solar photovoltaic industry, semiconductor industry and piezoelectric crystal industry

applications in the semiconductor field

silicon carbide one-dimensional nano materials have more unique excellent properties and wider application prospects due to their own micro morphology and crystal structure. They are generally considered to be an important component of the third generation broadband gap semiconductor materials

the third generation semiconductor materials, namely wide band gap semiconductor materials, also known as high-temperature semiconductor materials, mainly include silicon carbide, gallium nitride, aluminum nitride, zinc oxide, diamond, etc. This kind of material has the characteristics of wide band gap (band gap greater than 2.2ev), high thermal conductivity, high breakdown electric field, high radiation resistance, high electron saturation rate and so on. It is suitable for the manufacture of high temperature, high frequency, radiation resistance and high power devices. The third generation semiconductor materials have broad application prospects in the future because of their excellent properties

application in photovoltaic field

photovoltaic inverter plays a very important role in photovoltaic power generation. It not only has the function of direct AC conversion, but also has the function of maximizing the performance of solar cells and system fault protection. To sum up, it has the functions of automatic operation and shutdown, maximum power tracking control, anti separate operation (for parallel system), automatic voltage adjustment (for parallel system), DC detection (for parallel system), DC grounding detection (for parallel system), etc

domestic inverter manufacturers are still too few to apply new technologies and devices. Inverters with silicon carbide as the power device have started to be applied in large quantities. Silicon carbide has little internal resistance, so the efficiency can be very high. The switching frequency can reach 10K, and LC filter and bus capacitance can also be saved. Silicon carbide materials may have a breakthrough in the application of photovoltaic inverter gb/t 3098.1 ⑵ 000 fasteners mechanical properties bolts, screws and studs

application in aviation field

silicon carbide is made into silicon carbide fiber. Silicon carbide fiber is mainly used as high-temperature resistant material and reinforcing material. High temperature resistant materials include heat shielding material, high-temperature resistant conveyor belt, filter cloth for filtering high-temperature gas or molten metal, etc. When used as reinforcing materials, they are often used with carbon fiber or glass fiber, mainly reinforced metal (such as aluminum) and ceramics, such as the brake pads, engine blades, landing gear boxes and fuselage structural materials of jet aircraft. They can also be used as sporting goods, and their chopped fibers can be used as high-temperature furnace materials

silicon carbide raw materials can be supplied in large quantities, but the application of nano silicon carbide powder with high technical content is unlikely to form economies of scale in a short time. The research and development of silicon carbide chips in China is still in its infancy. Silicon carbide chips are rarely used in China. The development of silicon carbide material industry lacks the support of downstream application enterprises. Carry out close cooperation on talent training and technology research and development; Strengthen the exchange between enterprises, especially the once secluded experimental machine industry. When going out of purdah, it is necessary to actively participate in international exchange activities and improve the development level of enterprises; Pay attention to the brand building of the enterprise, and strive to build the fist products of the enterprise

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