Overview of silicon carbide black
Silicon Carbide (SiC), also known as carborundum, is a synthetic ceramic compound made up of silicon and carbon atoms. Known for its exceptional hardness, thermal conductivity, and resistance to chemical reactions and wear, SiC is a versatile material widely used in high-performance applications that demand superior physical and electronic properties. Its unique crystal structure, which can exist in several polytypes, contributes to its multifaceted utility across various industries.
Features of silicon carbide black
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Exceptional Hardness: Silicon carbide ranks just below diamond and boron carbide in hardness, making it an ideal abrasive material.
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High Thermal Conductivity: It is an excellent heat conductor, capable of dissipating heat rapidly, which is crucial for high-power electronic and semiconductor devices.
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Chemical Stability: Resistant to most acids, alkalis, and salt solutions, SiC maintains its properties even under harsh chemical environments.
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Wide Bandgap Semiconducting Material: As a wide bandgap semiconductor, it operates at higher temperatures and frequencies than conventional semiconductors like silicon.
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Mechanical Strength and Wear Resistance: Offers high mechanical strength and excellent wear resistance, suitable for mechanical seals, bearings, and pump components.
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Thermal Shock Resistance: Can withstand rapid temperature changes without cracking or degrading, important for applications involving cyclic heating and cooling.
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Parameters of silicon carbide black
Silicon carbide (SiC) is a nonreactive metal that is characterized by high melting and boiling points, excellent heat resistance, and good chemical stability under various conditions. It is widely used in various industries as an impolymer, a catalyst, and a highly resistant material for industrial applications.
The physical properties of SiC include:
– High melting and boiling points: SiC has a melting point of around 3085°C at 1962 mbar and boiling point of around 4705°C at 2315 mbar.
– Excellent heat resistance: SiC can withstand temperatures up to 400°C, making it suitable for heating.
– Good chemical stability under different conditions: SiC has low viscosities, good tensile strength, and high thermal conductivity. It can also be moderately heat resistant.
– Use in the automotive industry: SiC is commonly used as an impolymer in modern vehicles due to its highyield power and improved mechanical performance.
In addition to these physical properties, SiC also has several other applications, such as:
– Sawing and materials: SiC is often used as a substrate for cutting and shaping materials like metals, composites, and glass.
– Construction materials: SiC is used as an adhesive in the construction of ceramic, hardenable, and granular concrete.
– Metal processing: SiC is a key material in the production of new materials like semiconductors and quantum computing devices.
– Medical applications: SiC is used in the development of advanced medical devices like brain implants, insulin delivery systems, and cardiovascular devices.
Overall, SiC has a wide range of applications across various industries and has become increasingly popular in recent years due to its strong physical and chemical properties and versatility.
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Applications of silicon carbide black
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Semiconductor Devices: Used in high-voltage, high-frequency, and high-temperature power electronics, such as MOSFETs, Schottky diodes, and power modules.
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Abrasive Materials: As an abrasive grain in grinding wheels, sandpapers, and cutting tools due to its hardness and wear resistance.
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Refractories and Furnace Linings: In high-temperature furnaces and kilns because of its outstanding thermal stability and resistance to corrosion.
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Ceramic Armor: In lightweight armor systems due to its combination of hardness, toughness, and low density.
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Chemical Process Equipment: For pumps, valves, and seals in corrosive chemical environments where metals would corrode.
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Wire Sawing: As the abrasive medium in wire saws for slicing silicon wafers in the semiconductor industry and gemstones.
Company Profile
MyCarbides is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality carbides and relative products.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality carbide materials and relative products, please feel free to contact us or click on the needed products to send an inquiry.
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FAQs of silicon carbide black
Q: How is silicon carbide black produced?
A: silicon carbide black is primarily synthesized through the Acheson process, which involves heating a mixture of silica sand and carbon (usually in the form of coke) in an electric furnace at high temperatures.
Q: Is silicon carbide black conductive?
A: Yes, silicon carbide black is a semiconductor material with unique electronic properties, including high breakdown voltage and thermal conductivity, making it suitable for power electronics.
Q: Can silicon carbide black be used in extreme environments?
A: Absolutely, SiC’s high temperature stability, resistance to radiation damage, and ability to withstand thermal shocks make it ideal for applications in space, nuclear reactors, and deep-well drilling.
Q: What gives silicon carbide black its unique properties?
A: The covalent bond structure of silicon carbide black, along with its tight crystal lattice, contributes to its hardness, high melting point, and resistance to wear and corrosion.
Q: Is silicon carbide black biocompatible?
A: Ssilicon carbide black has been investigated for biomedical applications due to its biocompatibility, inertness, and durability, with potential uses in orthopedic implants and surgical instruments.
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