Application of silicon carbide nanomaterials

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 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, stable chemical characteristics, and lightweight. It has found wide application 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 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 better performance when used as a carrier for catalysts due to the excellent material performance. Comparing SiC to traditional carrier materials such as alumina or silicon oxide, its superiority is mostly reflected in these aspects: 1) High thermal conductivity and strong heat resistance; (2) High chemical stability; (3) High mechanical strength; Not easily broken; 4) Low thermal expansion rate.

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. A wide range of properties such as its chemical stability, high temperature, high pressure, and corrosion resistance make it a popular choice in the microelectronics field.

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 make light emitting diodes that look blue. 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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