(brazing of inserts, metallization and glue technology)

High-performance ceramics for demanding industries

Technical ceramics based on aluminum oxide (Al₂O₃) have become the standard for applications where reliability, durability, and precision are essential. Especially Al₂O₃ 99.5% and 99.7% combine very high purity with outstanding mechanical, electrical, and thermal properties, which makes these materials highly suitable for use in a Sub-Assembly

Key material benefits

• Excellent electrical insulation at high temperatures

• High mechanical strength and wear resistance for long-lasting performance

• Gas- and vacuum-tightness thanks to known 0 porosity

• Thermal resistance above 1600 °C

Metal-to-ceramic joining: three proven techniques

1. Metallization

Using metallization, the ceramic surface is coated with an adhesion layer.

Advantage: reliable, corrosion-resistant interfaces for electronics, insulators, and vacuum technology.

2. Brazing process

With brazing, ceramic and metal are permanently joined using a molten alloy.

Advantage: robust, hermetic joints for critical systems.

3. Integration of inserts (Stainless Steel & Molybdenum)

For mechanical or thermal loads, inserts can be integrated into the ceramic.

• Stainless steel inserts allow for threaded connections and provide excellent mechanical stability.

• Molybdenum inserts are used at high temperatures and in vacuum environments thanks to their excellent thermal and electrical properties, and their low coefficient of thermal expansion, closely matching that of ceramics.

Sub-Assembly: added value for the customer

Beyond single components, we also supply fully integrated sub-assemblies. Besides single parts Gimex also deliveres fully integrated sub-assemblies.  This means you receive one ready-to-install unit in which ceramics, stainless steel or molybdenum inserts, and metallization layers are already combined.

• Less assembly steps at your site → reduced production costs and shorter lead times

• Consistent quality → joints are created under controlled conditions

• One contact → no need to coordinate multiple suppliers

The result: a partner who delivers not just parts, but complete, ready-to-use solutions that fit seamlessly into your system.

Typical applications

• Semiconductor industry: hermetic feedthroughs, insulators, and carriers for precision processes

• Medical technology: biocompatible housings and hermetically sealed packages for active implants

• Energy & vacuum technology: feedthroughs, sensor housings, insulators, and couplings for demanding environments

Why choose Al₂O₃ 99.5% – 99.7%?

• Highest material purity for optimal performance

• Compatible with metallization, brazing, and integration of stainless steel and molybdenum inserts

• Available as complete sub-assemblies, ready for system integration

• Combines precision with proven reliability in complex systems

• Broad applicability: from high-tech electronics to medical devices

Conclusion

With Al₂O₃ ceramics in 99.5% and 99.7% purity, you choose not only a material with outstanding properties, but also a sub-assembly partner that goes beyond components supply. By offering metallization, stainless steel and molybdenum inserts, and the option of complete sub-assemblies, we deliver ready-to-use components that guarantee reliability and efficiency in every high-tech application.

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