Application of silicon carbide nanomaterials

Byadmin

Aug 31, 2023

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Silicon carbide is a nanomaterial that has many outstanding properties. These include high thermal resistance, strong thermal stability (oxidation and chemical corrosion resistant), low thermal expansion coefficients, high thermal resistance, good chemical resistance, and a wide range of mechanical and electrical properties. Silicon carbide single-crystal devices are widely applicable in special environments, such as aerospace and radar communications, automobiles, oil exploration, and high temperatures radiation environments. Its optical, electrical and mechanical properties, as well as its uniqueness, have a wide range of potential applications. 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 and chemical industry, as well as automobiles, ships and aerospace 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 composite materials improves the heat resistance of the ceramics as well as their original brittleness.

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 a 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 primarily due to the following: 1) high heat resistance and thermal conductivity; 2) high chemical stability; 3) strong mechanical strength; not easily broken; 4) comparatively low thermal expansion.

3. Field emission properties nano-silicon carbide

SiC Nanowire Array has low turn-on and threshold voltages, high current densities, stable field emissions performance and is ideal for field emission cathode materials. Moreover, it is widely used for microelectronic devices due to its chemical stability, high-temperature and high pressure resistance, corrosion resistant and other properties.

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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