silicon carbide
Definition
Noun: An extremely hard, blue-black crystalline compound with the chemical formula SiC. It occurs naturally as the rare mineral moissanite but is typically produced synthetically. Its primary uses are as an abrasive material due to its hardness and as a refractory material due to its high thermal stability. Certain crystal forms can also function as semiconductors.
Usage Examples
- Silicon carbide is a key material for manufacturing grinding wheels and cutting tools.
- The furnace lining was made from silicon carbide to withstand extreme temperatures.
- Research into silicon carbide semiconductors focuses on their efficiency in high-power electronics.
Advanced Usage
- In materials science, silicon carbide is often referred to by its abbreviation SiC when discussing its semiconductor properties, especially in the context of wide-bandgap semiconductors for electric vehicles and power grids.
- The synthetic gemstone form of silicon carbide is known as synthetic moissanite, used in jewelry as a diamond simulant.
Variants and Related Words
- Carborundum: A trademarked name for silicon carbide, historically and sometimes still used generically, especially concerning abrasive products.
- Moissanite: The name for the natural mineral form of silicon carbide.
- SiC: The standard chemical formula abbreviation.
Synonyms
- Abrasive compound
- Refractory compound
- (In specific contexts) Synthetic moissanite
Related Phrases and Compounds
- Silicon carbide ceramic: A monolithic ceramic material made from sintered silicon carbide, known for its hardness and chemical inertness.
- Silicon carbide fiber: A high-strength fiber used in composite materials for aerospace and automotive applications.
- Silicon carbide wafer: A thin slice of single-crystal silicon carbide used as a substrate for manufacturing semiconductor devices.
Noun
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an extremely hard blue-black crystalline compound (SiC) used as an abrasive and a heat refractory material; crystals of silicon carbide can be used as semiconductors
