Al2O3 Alumina Ceramic Vacuum Relay Casing

Product detail

Aluminum oxide ceramics have excellent high-frequency dielectric properties, high-temperature resistance, corrosion resistance, do not melt under the influence of electric arcs, exhibit good electrical insulation properties, and can achieve vacuum tightness. They are an ideal insulating material for manufacturing high-voltage, high-current electronic components.

After metallization with nickel on the ceramic surface, aluminum oxide ceramics can be soldered to metals using Ag-Cu alloys or pure Ag and pure Cu solder, creating high-strength and hermetic connections, creating a vacuum environment. This protects electronic components for safe operation in high-voltage environments, reduces damage to relay contacts, and extends the lifespan of relays.

This product is produced using 96% aluminum oxide combined with nanometallization technology and is suitable for soldering to different materials such as copper and aluminum. It is widely used in vacuum electronic components, hermetic sealing of components such as thyristors, and electrode leads for vacuum equipment or sealed containers.

Critical parameters：

Gas leakage coefficient（Pa.m³/s）: ≤10^-8

Volume resistivity（Ω.cm）: ≥10^15

Combined strength（MPa）: ≥60

Operating temperature（℃）: 600~1000

Material Data Sheet

Packing & Shipment

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