Recently, the Chief Minister of Odisha graced the ground-breaking ceremony of India's first silicon carbide manufacturing facility to be set up in Odisha at an investment of Rs 620 crore.
About Silicon Carbide:
It was discovered by the American inventor Edward G. Achesonin 1891.
Its chemical formula is SiC and it is the most widely used non-oxide ceramic.
Properties
It is an exceedingly hard, synthetically produced crystalline compound of silicon and carbon.
In addition to hardness, silicon carbide crystals have fracture characteristics that make them extremely useful in grinding wheels and in abrasive paper and cloth products.
It has high thermal conductivity and high-temperature strength, low thermal expansion, and resistance to chemical reaction which makes it valuable in the manufacture of high-temperature bricks and other refractories.
It is also classed as a semiconductor, having an electrical conductivity between that of metals and insulating materials.
This property, in combination with its thermal properties, makes SiC a promising substitute for traditional semiconductors such as silicon in high-temperature applications.
Applications
It is used in refractory linings and heating elements for industrial furnaces, in wear-resistant parts for pumps and rocket engines.
In semiconducting substrates for light-emitting diodes.
Its primary application is as an abrasive because of its high hardness, which is surpassed only by diamond, cubic boron nitride and boron carbide.
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