What is aluminum-based silicon carbide composite material

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Aluminum-based silicon carbide composites are an advanced type of metal matrix composites, fabricated by combining silicon carbide particles or fiber-reinforced phases with an aluminum alloy matrix. It combines the lightweight and easy-to-process characteristics of aluminum alloy with the high hardness, high rigidity and low coefficient of thermal expansion of silicon carbide. As a result, it performs outstandingly in terms of specific strength, specific rigidity, thermal conductivity and dimensional stability, and has become a key material in the high-end industrial field.

Product application fields
Aluminum-based silicon carbide composites are widely used in scenarios that require lightweight, high heat dissipation and stability:

• Aerospace: Satellite brackets, waveguides, aviation structural components.
• Electronic packaging: power module substrate, microwave housing, laser heat sink.
• Rail transit: Brake discs, pantograph components.
  Optical precision instruments: mirrors, stabilizing platforms.
• Automotive industry: Engine pistons, brake system components.
• Military equipment: Armored materials, missile structural components.

Core advantages of the product

1. Lightweight and high strength: Its density is only one-third that of steel, and its specific stiffness is higher than that of most metals.
2. High thermal conductivity: Excellent heat dissipation efficiency, suitable for high-power electronic devices.
3. Low coefficient of thermal expansion: Compatible with semiconductor materials to ensure connection reliability.
4. Wear and corrosion resistance: Suitable for high-speed friction and harsh environments.
5. Customizable processing: Supports post-processing such as CNC, grinding, and plating.

Customized service for specifications and dimensions
We offer comprehensive customized production solutions

• Customized reinforcing phase: The volume fraction of silicon carbide can be adjusted from 10% to 70%, and the forms include particles, fibers or whiskers.
• Flexible size: Supports processing of plates, bars and special-shaped parts, with the maximum production capacity of 1200mm × 800mm flat parts.
• Precision machining: We offer high-precision machining with a tolerance of ±0.01mm, surface metallization, nickel and gold plating, and other services.
• Batch adaptation: We can undertake everything from small-scale prototype trial production to large-scale mass production.

The key problem to be solved
Aluminum-based silicon carbide composites can effectively address the following industry pain points:

• Heat dissipation bottleneck: Address the overheating and failure issues of 5G base stations and IGBT modules.
• Lightweighting demand: To assist spacecraft in reducing weight and enhancing launch efficiency.
• Size mismatch: Eliminate solder cracking caused by thermal expansion differences in electronic packaging.
• Environmental tolerance: Extend the service life of components under high-temperature and corrosive working conditions.

Application Case (Anonymous）
Case A: A certain aerospace research institute selected our company’s AlSiC material with a SiC content of 55% for the satellite waveguide, achieving a 40% weight reduction while meeting the dimensional stability requirements under the cycle of -180℃ to 150℃.
Case B: A certain new energy vehicle manufacturer adopted our company’s customized AlSiC power module substrate, which increased the heat dissipation efficiency of the electric vehicle inverter by 50% and the power density by 30%.
Case C: A certain laser equipment manufacturer used our company’s high surface flatness AlSiC heat sink to solve the beam drift problem caused by thermal deformation of high-power lasers.

Aluminum-based silicon carbide composites, with their unique combination of properties, are driving the upgrading and innovation of high-end equipment. We are committed to providing customers with all-round solutions from materials to parts to help achieve breakthroughs in product performance.
Brudeze Ceramics supplies and sells a wide range of high-quality quartz glass, including alumina ceramics, zirconia ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, boron carbide ceramics, bioceramics, machinable ceramics, etc. We can meet the customization requirements of various ceramic products.