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Silicon Carbide Beta Nanoparticles/Nanopowder and Their Applications

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Silicon carbide is an important non-oxide ceramic which has diverse industrial applications. Silicon carbide has exclusive properties such as high hardness and strength, chemical and thermal stability, high melting point, oxidation resistance, high erosion resistance, etc. All of these qualities make silicon carbide a perfect candidate for high power, high temperature electronic devices as well as abrasion and cutting applications.

As mentioned above silicon carbide is a promising ceramic for various industrial applications thanks to its excellent properties. Silicon carbide is a binary compound semiconductor consisting of carbon and silicon, where each atom is sp3 -hybridized and forms four bonds to four other atoms of the opposite kind. On the other hand, the crystal structure gives rise to polytypism, which is a one-dimensional polymorphism. Unlike most other semiconductors, which only occur in one or two different crystal structures each, silicon carbide exists in over 250 known polytypes. The difference among the polytypes is the stacking sequence along the с-axis of the lattice. The cubic polytype is referred to as β-SiC, whereas the hexagonal and rhombohedral structures are referred to as α-SiC.

Due to the low stacking-fault energy, it is easy to form different silicon carbide polytypes, making it possible to obtain silicon carbide crystals with different properties for various applications. Properties and applications silicon carbide has been widely studied for various applications because of its high Young’s modulus and hardness, excellent oxidation and corrosion durability, high strength at elevated temperatures, and good thermal shock resistance. Moreover, silicon carbide is a promising semiconducting material for application in areas of high temperature, high power, high frequency and harsh environments.

As we mentioned cubic polytype of silicon carbide is named as beta-silicon carbid which is shown as β-SiC. Beta silicon carbide nanoparticles/nanopowder can be used various applications. For example since SiC (Silicon Carbide) Beta Nanoparticles (99.5+% , 790 nm ) can be used in sintered ceramic parts and in abrasive applications such as high performance brake parts. 


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