[Useful Information] Alumina Alternative Composite Material SA701
To customers struggling with large alumina parts - that problem can be solved with ceramic composite materials.
With the expansion of the semiconductor manufacturing equipment market, procurement issues related to ceramics have arisen. In particular, large alumina components have limited suppliers, and extended lead times are impacting equipment development schedules. The ceramic-metal composite material SA701 has slightly lower Young's modulus and bending strength compared to alumina, but it has high fracture toughness and is less prone to cracking, making it easy to handle. Its density is about 3/4 that of alumina, and it can be machined for direct threading, eliminating the need for metal bushings and enabling weight reduction. We encourage you to consider the adoption of metal-ceramic composite materials, which excel in producing larger components compared to alumina. *For more details, please refer to the materials available for download via the PDF button. We also welcome any questions or inquiries through the contact button.*
basic information
SA701 is a composite material made by impregnating aluminum into a porous SiC ceramic, consisting of 70% SiC and 30% aluminum. <Available Sizes> - 1600mm x 1400mm x 60mm <Properties> - Density: 3.0 g/cm^3 - Flexural Strength: 340 MPa - Young's Modulus: 260 GPa - Specific Stiffness: 86.7 N·m/kg - Fracture Toughness: 8 MPa·m^(1/2) - Coefficient of Thermal Expansion: 7.0 x 10^-6 /K - Thermal Conductivity: 160 W/m·K - Volume Resistivity: >1×10^-5 <Features> - Lightweight and high rigidity - High toughness and resistant to cracking - Easy to scale up parts - High thermal conductivity and low thermal expansion - Good vibration damping properties - Capable of direct screw machining, allowing for weight reduction by eliminating the need for metal bushings.
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Applications/Examples of results
●Semiconductor and LCD manufacturing and inspection equipment ・Movable stage ・Guide/Rail ・Arm/Carrier ・Holder ・Table/Tray ・Heater ・Temperature control plate
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