In what fields does silicon carbide work?

Human in 1905 found in the meteorite silicon carbide, now mainly from synthetic, Jiangsu silicon carbide has many uses, the industry span is large, can be used for monocrystalline silicon, polysilicon, potassium arsenide, quartz crystals, solar photovoltaic industry, semiconductor industry, piezoelectric crystal industry engineering processing materials.

The third generation of semiconductor materials with its excellent characteristics, the future application prospect is very broad. The research and development of silicon carbide chips in China is still in the initial stage, the application of silicon carbide chips in the sea is less, the development of silicon carbide material industry lacks the support of downstream application enterprises. When used as reinforcement materials, it is often used with carbon fiber or glass fiber, mainly reinforced metals (such as aluminum) and ceramics, such as brake pads for jet aircraft, engine blades, landing gear boxes and fuselage structural materials, etc., can also be used as sporting goods, and its short fiber can be used as high temperature furnace materials.

The coarse silicon carbide material has been supplied in large quantities, but the application of nano-scale silicon carbide powder with very high technical content cannot form economies of scale in a short time. Silicon carbide materials may have breakthroughs in the application of photovoltaic inverters. The third generation of semiconductor materials is wide band gap semiconductor materials, also known as high temperature semiconductor materials, mainly including silicon carbide, gallium nitride, aluminum nitride, zinc oxide, diamond and so on.


In the field of photovoltaic applications

Photovoltaic inverter is very important for photovoltaic power generation, not only has the direct AC conversion function, but also has the function of the solar cell function and system fault protection function to a large extent. It has automatic operation and shutdown function, high-power tracking control function, anti-separate operation function (for grid-connected systems), automatic voltage adjustment function (for grid-connected systems), DC detection function (for grid-connected systems), DC grounding detection function (for grid-connected systems), and so on.

Applications in the field of aviation

Silicon carbide is made into silicon carbide fiber, silicon carbide fiber is mainly used as high temperature resistant materials and reinforcement materials, high temperature resistant materials include heat shielding materials, high temperature resistant conveyor belts, filter cloth for high temperature gas or molten metal. This kind of material has a wide band gap (band gap width greater than 2.2ev), high thermal conductivity, high breakdown electric field, high radiation resistance, high electron saturation rate and other characteristics, suitable for high temperature, high frequency, radiation resistance and high-power device production. Develop close and intimate cooperation in personnel training and technology research and development; Strengthen the communication between enterprises, especially actively participate in international exchange flow, promote the development level of enterprises; Pay attention to the enterprise brand building, and strive to create the fist products of the enterprise.

The application of new technologies and new devices by domestic inverter manufacturers is still too little, and the inverter with silicon carbide as a power device has begun to be applied in large quantities. The internal resistance of silicon carbide is very small, and the efficiency can be very high, the switching frequency can reach 10K, and LC filters and bus capacitors can also be saved.

Applications in the semiconductor field

Silicon-carbide one-dimensional nanomaterials are expected to be an important component of the third generation of wide-band gap semiconductor materials because of their microscopic morphology and crystal structure, which make them have more unique excellent functions and more extensive application prospects.


Post time: Jul-24-2023