Knowledge What Kind of Solid is SiC? 5 Key Properties and Applications You Need to Know
Author avatar

Tech Team · Kintek Solution

Updated 2 months ago

What Kind of Solid is SiC? 5 Key Properties and Applications You Need to Know

Silicon Carbide (SiC) is a ceramic material composed of silicon and carbon.

It is known for its exceptional mechanical and thermal properties.

SiC is characterized by high hardness, high thermal conductivity, low thermal expansion, and excellent thermal shock resistance.

This makes it suitable for a wide range of applications including abrasives, refractories, and semiconductor manufacturing.

5 Key Properties and Applications You Need to Know

What Kind of Solid is SiC? 5 Key Properties and Applications You Need to Know

Composition and Structure

SiC is a compound of silicon and carbon, with a chemical formula of SiC.

It exists in various crystalline forms, the most common being α-SiC and β-SiC.

The α-SiC form, with multiple polytypes such as 6H, 4H, and 15R, is prevalent in industrial applications and is stable at high temperatures.

β-SiC, with a cubic crystal structure, is stable at temperatures below 1600°C and transforms into α-SiC at higher temperatures.

Mechanical and Thermal Properties

High Hardness: SiC has a hardness approaching that of diamond, making it an excellent abrasive material.

High Thermal Conductivity: With values ranging from 120 to 270 W/mK, SiC efficiently conducts heat, which is crucial for applications like heating elements and heat exchangers.

Low Thermal Expansion: Its thermal expansion coefficient of 4.0x10-6/°C ensures minimal dimensional changes with temperature fluctuations, enhancing its thermal shock resistance.

Excellent Thermal Shock Resistance: This property allows SiC to withstand rapid temperature changes without cracking, making it ideal for high-temperature environments.

Applications

SiC is used in various industries due to its unique properties.

Semiconductor Industry: SiC ceramics are used in grinding discs and fixtures for silicon wafer production, benefiting from their high hardness and thermal compatibility with silicon.

Power Electronics: SiC devices are preferred in power semiconductors due to their wide band gap, high thermal conductivity, and high breakdown electric field, outperforming traditional materials like silicon and gallium arsenide.

Abrasives and Refractories: SiC's abrasive nature and resistance to high temperatures make it suitable for grinding wheels and refractory materials.

Preparation

Industrial SiC is primarily synthesized, with methods including the Acheson method, silicon dioxide low-temperature carbothermal reduction, and silicon-carbon direct reaction.

These processes yield SiC powders that are then used to manufacture various SiC products.

In summary, SiC is a versatile ceramic material with outstanding mechanical strength and thermal properties, making it indispensable in modern industrial applications, particularly in high-temperature and abrasive environments.

Continue Exploring, Consult Our Experts

Discover the pinnacle of ceramic engineering with KINTEK's premium Silicon Carbide products.

From semiconductor manufacturing to power electronics, rely on our SiC materials for unmatched hardness, thermal conductivity, and resistance.

Elevate your industry's performance with KINTEK solutions – explore our range today and experience the power of SiC!

Related Products

Silicon Carbide (SiC) Sputtering Target / Powder / Wire / Block / Granule

Silicon Carbide (SiC) Sputtering Target / Powder / Wire / Block / Granule

Looking for high-quality Silicon Carbide (SiC) materials for your lab? Look no further! Our expert team produces and tailors SiC materials to your exact needs at reasonable prices. Browse our range of sputtering targets, coatings, powders, and more today.

Silicon Carbide (SIC) Ceramic Plate

Silicon Carbide (SIC) Ceramic Plate

Silicon nitride (sic) ceramic is an inorganic material ceramic that does not shrink during sintering. It is a high-strength, low-density, high-temperature-resistant covalent bond compound.

Silicon Carbide (SIC) Ceramic Sheet Wear-Rresistant

Silicon Carbide (SIC) Ceramic Sheet Wear-Rresistant

Silicon carbide (sic) ceramic sheet is composed of high-purity silicon carbide and ultra-fine powder, which is formed by vibration molding and high-temperature sintering.

silicon carbide(SiC) heating element

silicon carbide(SiC) heating element

Experience the advantages of Silicon Carbide (SiC) Heating Element: Long service life, high corrosion and oxidation resistance, fast heating speed, and easy maintenance. Learn more now!

High Purity Silicon (Si) Sputtering Target / Powder / Wire / Block / Granule

High Purity Silicon (Si) Sputtering Target / Powder / Wire / Block / Granule

Looking for high-quality Silicon (Si) materials for your laboratory? Look no further! Our custom-produced Silicon (Si) materials come in various purities, shapes, and sizes to suit your unique requirements. Browse our selection of sputtering targets, powders, foils, and more. Order now!

Silicon Carbide (SIC) Ceramic Sheet Flat / Corrugated Heat Sink

Silicon Carbide (SIC) Ceramic Sheet Flat / Corrugated Heat Sink

Silicon carbide (sic) ceramic heat sink not only does not generate electromagnetic waves, but also can isolate electromagnetic waves and absorb part of electromagnetic waves.

Silicon Nitride (SiN) Ceramic Sheet Precision Machining Ceramic

Silicon Nitride (SiN) Ceramic Sheet Precision Machining Ceramic

Silicon nitride plate is a commonly used ceramic material in the metallurgical industry due to its uniform performance at high temperatures.

Titanium Silicon Alloy (TiSi) Sputtering Target / Powder / Wire / Block / Granule

Titanium Silicon Alloy (TiSi) Sputtering Target / Powder / Wire / Block / Granule

Discover our affordable Titanium Silicon Alloy (TiSi) materials for laboratory use. Our custom production offers various purities, shapes, and sizes for sputtering targets, coatings, powders, and more. Find the perfect match for your unique needs.

High Purity Silicon Dioxide (SiO2) Sputtering Target / Powder / Wire / Block / Granule

High Purity Silicon Dioxide (SiO2) Sputtering Target / Powder / Wire / Block / Granule

Looking for Silicon Dioxide materials for your lab? Our expertly tailored SiO2 materials come in various purities, shapes, and sizes. Browse our wide range of specifications today!

Cobalt Silicide (CoSi2) Sputtering Target / Powder / Wire / Block / Granule

Cobalt Silicide (CoSi2) Sputtering Target / Powder / Wire / Block / Granule

Looking for affordable Cobalt Silicide materials for your laboratory research? We offer tailored solutions of different purities, shapes, and sizes, including sputtering targets, coating materials, and more. Explore our range now!

Titanium Carbide (TiC) Sputtering Target / Powder / Wire / Block / Granule

Titanium Carbide (TiC) Sputtering Target / Powder / Wire / Block / Granule

Get high-quality Titanium Carbide (TiC) materials for your lab at affordable prices. We offer a wide range of shapes and sizes, including sputtering targets, powders, and more. Tailored to your specific needs.

Infrared Silicon / High Resistance Silicon / Single Crystal Silicon Lens

Infrared Silicon / High Resistance Silicon / Single Crystal Silicon Lens

Silicon (Si) is widely regarded as one of the most durable mineral and optical materials for applications in the near-infrared (NIR) range, approximately 1 μm to 6 μm.

CVD Diamond coating

CVD Diamond coating

CVD Diamond Coating: Superior Thermal Conductivity, Crystal Quality, and Adhesion for Cutting Tools, Friction, and Acoustic Applications


Leave Your Message