Ceramic-to-Metal Seals and Feedthroughs for High-Temperature Systems

The Advantage of Ceramic-to-Metal Technology

When environments exceed the limits of glass, ceramic-to-metal seals become the gold standard for thermal and electrical isolation. These seals are engineered to withstand extreme temperatures, voltages, and vacuum pressures without degradation—making them indispensable in aerospace propulsion, particle physics, and medical imaging systems.

High-Performance Applications

Ceramic-to-metal feedthroughs are used in high-voltage power transmission, RF systems, X-ray machines, and vacuum processing chambers. Their excellent dielectric strength ensures signal stability while maintaining full hermetic integrity.

Engineering and Design Excellence

Complete Hermetics produces custom ceramic-to-metal seals using alumina ceramics bonded to stainless steel, Kovar, or titanium through metallization and brazing. Each joint undergoes ultrasonic inspection, helium testing, and dimensional analysis to confirm long-term sealing reliability.

Benefits Over Traditional Glass Seals

Compared with glass, ceramics provide higher breakdown voltage, improved heat resistance, and lower leakage. This makes them ideal for applications exceeding 500 °C or operating under continuous voltage loads.

Collaborative Development Process

From prototype to production, Complete Hermetics works directly with customers to optimize designs for performance, manufacturability, and cost efficiency. Engineers can tailor electrode geometry, pin diameter, and insulation thickness to meet exact system needs.

Contact Complete Hermetics

Choose Complete Hermetics for high-reliability ceramic-to-metal seals and feedthroughs proven in extreme operating environments.

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Ceramic-to-Metal Seals and Feedthroughs for Harsh Conditions

Why Choose Ceramic-to-Metal Seals

Ceramic-to-metal seals provide exceptional performance in environments where high temperatures, high voltages, and extreme pressures are present. Compared to glass-to-metal alternatives, ceramic-to-metal feedthroughs are designed for applications that demand the highest durability and reliability.

Applications of Ceramic-to-Metal Feedthroughs

Industries that depend on ceramic-to-metal feedthroughs include:

  • Aerospace and defense systems
  • High-voltage and power equipment
  • Vacuum and semiconductor chambers
  • Medical devices and diagnostic systems

These seals ensure maximum protection against leaks, electrical breakdown, and environmental damage.

Advantages of Ceramic-to-Metal Technology

Unlike glass seals, ceramic-to-metal hermetic seals can withstand harsher environments for longer periods. Their resistance to electrical stress and thermal shock makes them ideal for applications where standard sealing methods may fail. While production is more labor-intensive, the results deliver unmatched strength and durability.

Complete Hermetics Ceramic-to-Metal Solutions

Complete Hermetics specializes in custom ceramic-to-metal seals and feedthroughs, offering solutions built to precise customer specifications. Their expertise in engineering and materials ensures each product performs reliably, even in the most demanding conditions.

Applications include high vacuum feedthroughs, electrical feedthroughs, and advanced power or defense-related systems where precision sealing is critical.

Contact Complete Hermetics

As a trusted hermetic seal manufacturer, Complete Hermetics provides custom ceramic-to-metal seals and feedthroughs for industries worldwide. Our team will design and manufacture components to meet your exact requirements for performance and reliability.

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