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Your Current Location :Home » News » Industry  » The role of silicon carbide in three major areas

The role of silicon carbide in three major areas

Source: Time:2017-09-18 10:27:40 views:

        The first time in 1905, found in the meteorite silicon carbide, now mainly from the synthetic, silicon carbide has many uses, industry span, can be used for monocrystalline silicon, polysilicon, potassium arsenide, quartz crystal, solar photovoltaic industry, Semiconductor industry, piezoelectric crystal industry engineering processing materials.


碳化硅


In the field of semiconductor applications

        Silicon carbide one-dimensional nanomaterials are widely considered to be an important constituent element of the third generation of wide bandgap semiconductor materials because of their own micro-morphology and crystal structure to provide more unique and excellent performance and wider application prospects.

        The third generation of semiconductor materials that wide bandgap semiconductor materials, also known as high temperature semiconductor materials, including silicon carbide, gallium nitride, aluminum nitride, zinc oxide, diamond and so on. This material has a wide bandgap width (bandgap width greater than 2.2ev), high thermal conductivity, high breakdown electric field, high anti-radiation ability, high electron saturation rate and other characteristics, suitable for high temperature, high frequency , Anti-radiation and high-power device production. The third generation of semiconductor materials with its excellent characteristics, the future prospects of application is very broad.

In the field of photovoltaic applications

        PV inverter is very important for the role of photovoltaic power generation, not only has a direct current conversion function, but also to maximize the performance of the solar cell function and system fault protection. (With grid system), automatic voltage adjustment function (for network connection), DC detection function (for network connection), DC grounding detection (for network connection), automatic power control function Function (with the network system) and so on.

        Domestic inverter manufacturers on the application of new technologies and new devices is still too small to silicon carbide power devices for the inverter, and began to mass applications, silicon carbide internal resistance is very small, you can do a high efficiency, switching frequency Can reach 10K, you can also save LC filter and bus capacitance. Silicon carbide materials in the application of photovoltaic inverter or a breakthrough.

In the field of aviation applications

        Silicon carbide made of silicon carbide fiber, silicon carbide fiber is mainly used for high temperature materials and reinforced materials, high temperature materials, including thermal shielding materials, high temperature conveyor belt, filter high temperature gas or molten metal filter cloth and so on. Used as a reinforcement material, often with carbon fiber or glass fiber in combination to enhance the metal (such as aluminum) and ceramic-based, Harvatek made of jet aircraft brake pads, engine blades, landing gear box and body structure materials, Can also be used as sporting goods, the chopped fiber can be used as high-temperature furnace and so on.

        Silicon carbide coarse material has been able to supply a large number, but the high technological content of nano-grade silicon carbide powder application for a short time can not form economies of scale. Silicon carbide chip in China is still in the initial stage of research and development, silicon carbide chip in the domestic application of less, the development of silicon carbide materials industry, the lack of support for downstream applications. To strengthen the exchanges between enterprises, in particular, to actively participate in international exchange activities to enhance the level of enterprise development; focus on corporate brand building, and strive to build enterprises of the fist products.


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