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About Ceramic
Advanced ceramic / Fine ceramic materials
Advanced ceramic materials are widely used in various high-tech fields due to their excellent physical and chemical properties. The main advanced ceramic materials include Silicon Carbide/SiC, Zirconia dioxide/ZrO2, Aluminum Oxide/Al2O3, Silicon Nitride/Si3N4, and Aluminum Nitride /AlN), boron nitride (Boron Nitride/BN) and magnesium oxide (Magnesium oxide/MgO), and discuss their characteristics, advantages, applications and maximum temperature resistance.
Characteristic:
Silicon carbide is a ceramic material with extremely high hardness and high thermal conductivity. Its hardness is second only to diamond, and it has excellent wear resistance and oxidation resistance.
Advantage:
1. Extremely high hardness and wear resistance.
2. Excellent thermal conductivity makes it perform well in high temperature applications.
3. Good oxidation resistance and corrosion resistance.
Application:
Silicon carbide is widely used in semiconductor manufacturing, mechanical seals, cutting tools, and high-temperature furnace tubes.
Maximum temperature resistance:
The maximum temperature resistance of silicon carbide can reach approximately 1600°C.
Zirconia dioxide/ZrO2 (more)
Characteristic:
Zirconia is a ceramic material with high strength and toughness. It has excellent mechanical properties at room temperature and remains stable in high temperature environments.
Advantage:
1. High strength and toughness, suitable for structural materials.
2. Good wear resistance and crack propagation resistance.
3. Low thermal conductivity, making it an excellent thermal insulation material.
Application:
Zirconia is commonly used in the manufacture of cutting tools, medical implants, fuel cells, and high-temperature furnace linings.
Maximum temperature resistance:
The maximum temperature resistance of zirconia can reach approximately 1600°C.
Aluminum Oxide/Al2O3 (more)
Characteristic:
Aluminum oxide is a common and affordable ceramic material that has good hardness, corrosion resistance, and electrical insulation properties.
Advantage:
1. High hardness and wear resistance.
2. Excellent electrical insulation properties.
3. Good corrosion resistance and stability.
Application:
Aluminum oxide is widely used in electronic components, abrasives, cutting tools and biomedical equipment.
Maximum temperature resistance:
The maximum temperature resistance of alumina can reach approximately 1700°C.
Silicon Nitride/Si3N4 (more)
Characteristic:
Silicon nitride is a ceramic material with high strength, high hardness and low density. It performs well in high temperature environments and has good thermal shock resistance.
Advantage:
1. High strength and hardness, suitable for high load applications.
2. Excellent thermal shock resistance.
3. Low density, making it a lightweight structural material.
Application:
Silicon nitride is commonly used in the manufacture of bearings, turbocharger rotors, cutting tools and electronic components.
Maximum temperature resistance:
The maximum temperature resistance of silicon nitride can reach approximately 1400°C.
Aluminum Nitride/AlN (more)
Characteristic:
Aluminum nitride is a ceramic material with high thermal conductivity and good electrical insulation. It is widely used in electronics and semiconductor fields.
Advantage:
1. Extremely high thermal conductivity, effective heat dissipation.
2. Excellent electrical insulation properties.
3. Good mechanical strength and corrosion resistance.
Application:
Aluminum nitride is mainly used in the manufacture of electronic substrates, heat sinks, microwave components and LED packaging.
Maximum temperature resistance:
The maximum temperature resistance of aluminum nitride can reach approximately 2200°C.
Boron Nitride/BN(more)
Characteristic:
Boron nitride is a ceramic material with a unique structure, divided into cubic boron nitride (c-BN) and hexagonal boron nitride (h-BN). c-BN has diamond-like hardness, while h-BN has excellent lubrication properties.
Advantage:
1. c-BN has extremely high hardness and is suitable for use in super-hard cutting tools.
2. h-BN has good lubrication properties and thermal stability.
3. Excellent electrical insulation properties.
Application:
Boron nitride is commonly used in the manufacture of cutting tools, lubricants, high-temperature furnace linings and electronic components.
Maximum temperature resistance:
The maximum temperature resistance of cubic boron nitride can reach about 2000°C, while hexagonal boron nitride can reach about 900°C.
Magnesium oxide/MgO (more)
Characteristic:
Magnesium oxide is a ceramic material with good fire resistance and electrical insulation. It is stable in high temperature environments and has excellent corrosion resistance.
Advantage:
1. Excellent fire resistance.
2. Good electrical insulation properties.
3. High melting point and stable chemical properties.
Application:
Magnesium oxide is mainly used to make refractory materials, high-temperature furnace linings, electrical insulators and catalyst carriers.
Maximum temperature resistance:
The maximum temperature resistance of magnesium oxide can reach about 2800°C.
Porous Ceramics/PC (more)
Characteristic:
Microporous ceramic is a ceramic material with a porous structure, which gives it excellent filtration performance and gas permeability.
Advantage:
1. Excellent filtration performance, can effectively remove tiny particles.
2. Good gas permeability, suitable for gas separation.
3. Lightweight and possessing certain mechanical strength.
Application:
Microporous ceramics are widely used in fields such as water treatment, gas separation, catalyst carriers and biomedical filtration.
Maximum temperature resistance:
The maximum temperature resistance of microporous ceramics varies according to different material compositions, and generally can reach about 1200°C to 1500°C.
Anti-Static Ceramic/ATC (more)
It is a special ceramic material that inhibits the accumulation of static electricity.
Characteristic:
High insulation performance, volume resistivity as high as 10^14Ω·cm, good dielectric properties, suitable for making dielectric components such as capacitors, high temperature resistance, and can withstand long-term high temperature environments above 300°C.
Advantage:
1. Avoid damage caused by electrostatic discharge (ESD) and protect sensitive electronic equipment
2. Prevent dust accumulation and keep it clean and beautiful
3. High insulation resistance to ensure electrical safety
Application:
Non-metallic structural parts such as electronic product casings and panels, insulation layers of precision instruments and electronic circuit boards, and insulation components of medical equipment.
Resistor value sorting
The surface resistance of antistatic ceramics is usually between 10^6~10^12Ω. The lower the resistance value, the better the antistatic effect, but the insulation performance will be relatively reduced. Different applications need to balance the two and choose an appropriate resistance value range.
Bioceramics (more)
Bioceramic materials mainly include the following types:
1. Zirconia: It has high strength and toughness and is commonly used in dental implants and hip replacements.
2. Alumina: high hardness and good wear resistance, often used in artificial joints and dental repairs.
3. Hydroxyapatite: It has excellent compatibility with bone tissue and is often used for bone transplantation and bone repair.
4. Glass-Ceramics: The composition can be adjusted to achieve specific biological activity, often used in bone filling materials.
Advanced ceramic materials have wide applications in modern industry and technology due to their unique and excellent physical and chemical properties. From silicon carbide to microporous ceramics, each material demonstrates different advantages and meets the needs of various high-tech applications. As technology continues to advance, these advanced ceramic materials will play a greater role in the future and drive various industries forward.
