Application of silicon carbide nanomaterials

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Silicon carbide is a nanomaterial that has many outstanding properties. These include high thermal conductivity; strong thermal stability; oxidation resistance and chemical corrosion resistance. It also has a large bandgap and small Dielectric constant. Silicon carbide single-crystal devices are widely applicable in many special environments, including aerospace, radar communications and automobiles. They also have applications in high-temperature radiation and high temperatures. It’s optical, electrical, excellent mechanical properties, as well as its uniqueness, have wide-ranging potential in many fields. 1. The mechanical properties and application of nanosilicon carbide composite materials

Silicon carbide whiskers possess excellent properties, including high strength and hardness, as well as heat resistance, corrosion resistant, and stable chemical characteristics. It is used widely in the chemical, aerospace and automobile industries. It is also called “King of Whiskers”. Scientists are able to calculate and measure the mechanical properties of one whisker at a microscopic level. Studies have shown the linear silicon-carbide ceramics are superior to bulk silicon-carbide ceramics in terms of tensile and bend strength. The carbide silicon nanowires have excellent performance and can be used to reinforce high molecular materials such as ceramics, metals, and polymers.

The use of silicon carbide in ceramic composites can enhance the heat resistance of the ceramics as well as their strength.

2. Nano silicon carbide as a catalyst carrier

It has always been important to examine the high specific surface areas of the carrier catalyst. High specific surface area silicon carbide has better performance when used as a carrier for catalysts due to the excellent material performance. Comparing SiC to traditional carriers alumina, silica oxide, etc. the SiC material’s superiority is mainly shown in the following: 1) high heat resistance and thermal conductivity; 2) high chemical stability; 3) strong mechanical strength; not easily broken; 4) low rate of thermal expansion.

3. Field emission properties nano-silicon carbide

SiC Nanowire Array has low turn on voltage and threshold, high current, stable field emissions performance and is ideal for field emission cathode materials. The stable chemical properties of SiC nanowire array, along with its high-temperature and high pressure resistance, corrosion resistant and other properties, makes it widely used for microelectronic device applications.

4. Nano-Silicium Carbide: Optoelectronic Properties

The luminescent properties of silicon carbide were also discovered earlier. In a low-temperature environment, silicon carbide can emit blue light. Silicon carbide’s wide bandgap is used by people to create blue-like light emitting diodes. The low luminous efficiency and weak blue light of silicon carbide are due to the indirect bandgap properties. In order to increase the luminous efficacy of silicon carbide, many improvements were devised. This includes the preparations of amorphous silica carbide as well as porous single crystal silicon carbide.

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