Crystal Clear Sic Moissanite Original Material

Introduction of Sic

Pure silicon carbide can be made by the Lely process, in which SiC powder is sublimed into high-temperature species of silicon, carbon, silicon dicarbide (SiC2), and disilicon carbide (Si2C) in an argon gas ambient at 2500 °C and redeposited into flake-like single crystals,[20] sized up to 2×2 cm, at a slightly colder substrate. This process yields high-quality single crystals, mostly of 6H-SiC phase (because of high growth temperature).

A modified Lely process involving induction heating in graphite crucibles yields even larger single crystals of 4 inches (10 cm) in diameter, having a section 81 times larger compared to the conventional Lely process

Cubic SiC is usually grown by the more expensive process of chemical vapor deposition (CVD). Homoepitaxial and heteroepitaxial SiC layers can be grown employing both gas and liquid phase approaches. Pure silicon carbide can also be prepared by the thermal decomposition of a polymer, poly(methylsilyne), under an inert atmosphere at low temperatures. Relative to the CVD process, the pyrolysis method is advantageous because the polymer can be formed into various shapes prior to thermalization into the ceramic.

Brand: Hmois

Name: moissanite rough

product: rough moissanite

others: moissanite white

Hot sale product: Synthetic uncut gemstone raw material

Supply Ability: 100 Kilogram/Kilograms per Month

Packaging Details: pp bag

Keywords: White Rough Moissanite

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