Silicon Carbide Ceramic

Silicon carbide ceramic is an advanced and reliable solution for a variety of industrial applications. These materials provide superior performance in comparison to traditional steel, aluminum and other alloys. Learn more about silicon carbide ceramics right here.

History of Silicon Carbide Ceramics

Silicon carbide ceramic is a type of ceramic made with a mixture of silicon and carbon. This material was first discovered in 1891 by American Acheson during a diamond-fusing experiment, though it was mistakenly thought to be a mix of diamonds. In 1893, Acheson developed an industrial smelting method to produce silicon carbide, also known as the Acheson furnace. This method involves using electric heat and carbonaceous material in a resistance furnace to melt quartz SiO2 and carbon, forming silicon carbide.

What is Silicon Carbide Ceramic?

Silicon carbide ceramic (SiC) is a material composed of silicon and carbon, synthesized in the form of a very hard ceramic. It was first mass produced in 1893 for use as an abrasive material and can be found naturally as the mineral moissanite. SiC grains are bonded together through sintering, resulting in incredibly durable ceramic products that can serve a variety of uses.

SiC ceramics are becoming a popular material for various technical applications due to their excellent mechanical and thermal properties. This material is used in the production of nuclear fuel, aerospace components, and marine engineering products. It is also used in automotive applications as well as other modern industries which have increasingly high requirements for materials.

They are widely used due to their superior characteristics in many areas, such as automobile, mechanical and chemical industries, environmental protection, space technology, information electronics, energy and more. These ceramic products are highly resistant to wear and temperature change and deliver minimal thermal expansion coefficient as well as excellent hardness and resistance to chemical corrosion. In conclusion, silicon carbide has become a multifunctional structural ceramic with numerous benefits in various industrial fields.

SiC ceramic are high-tech materials known for their wear and corrosion resistance, excellent thermal conductivity and low electrical conductivity. These properties make SiC ceramics ideal components in various industrial applications such as tube liners, heat exchangers, mechanical seal parts, and burner nozzles. The aerospace and automotive industries are especially keen to use SiC ceramic products in their production processes due to their reliable performance.

Physical properties

Silicon carbide (SiC) ceramics have a density of around 3.20 g/mm³ and are known for their exceptional hardness and strength, with Mohs hardness of 9.5, Knoop hardness between 2670 and 2815 kg/mm, and thermal shock resistance that is much higher than that of corundum abrasive materials. SiC ceramics also boast excellent thermal conductivityand low coefficient of thermal expansion, making them the ideal refractory material.

Chemical properties

Silicon carbide ceramic products are renowned for their high heat resistance, as well as for their ability to resist chemical degradation in extreme environments. At temperatures of 1300℃ and above, a protective layer of silicon dioxide forms on the surface of Silicon carbide crystals, forming a strong barrier against further chemical reactions. These ceramics can withstand strong acidity levels but do not fare well in alkaline conditions due to the lack of silica protection.

Electrical properties

Silicon carbide ceramics are materials highly valued for their diversity of uses in a wide range of industrial and technological applications. Silicon carbide ceramic products have attractive properties such as high thermal conductivity, high electrical conductivity, low thermal expansion, excellent heat endurance and corrosion resistance. They are known for their wide temperature range and excellent mechanical strength at hot temperatures.

Excellent hydrophilicity

Silicon Carbide (SiC) is a highly durable ceramic material with strong covalent bonds and low electronegativity. With its high hardness, large elastic modulus, and great wear resistance, SiC ceramic products have a wide range of applications. Also, its oxidation rate is low due to the protective silicon dioxide layer that forms on the surface upon oxidation.

Silicon carbide is an extremely hard and durable ceramic material, making it ideal for many commercial and industrial applications. Products made from silicon carbide ceramics can be fitted with high-temperature seals and used as components in furnaces, kilns, engines, and turbines, as well as in cutting tools, bearing systems, and protective wear. Silicon carbide ceramic products provide excellent corrosion resistance and exceptional strength-to-weight ratios.

Thanks for your reading. If you want to know more about SiC ceramic material and the advanced range of ceramic products we offer, we would like to advise you to visit CSCERAMIC for more information.