FRIALIT-DEGUSSIT Technical Ceramics


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Ceramic-metal Seals

Electrical Feedthroughs, Insulating Tubes and brazed ceramic-to-metal components

With around 150 years experience in the manufacture of ceramics for demanding applications, Friatec have been manufacturing FRIALIT brazed ceramic-to-metal assemblies for almost 50 years and in that time have gained unparalleled experience in the field.  Working closely with customers, for every application's requirements, our experts develop the optimum solution based on high-performance materials.

Technically advanced applications place exceptional demands on the material used: demands that often push metal, glass and plastics to their limits.  This is when FRIALIT-DEGUSSIT oxide ceramics come to the fore.  They are extremely resistant to heat, corrosion and chemical influences, whilst fully retaining shape and wear-resistance.  Our high-performance ceramic components retain full functionality, regardless of the demands placed upon them.

Our ceramic-to-metal components are widely used, especially in the highly-demanding fields of electrical and medical technology and are vital components for accelerators and particle sources. Renowned institutes throughout the world rely on our high-performance materials.  Special ceramic components with individual design and state-of-the-art technology are the answer to the problems of researchers and developers.

From high-vacuum and pressure resistant electrical feedthroughs and insulating tubes, produced in series or custom- designed and manufactured according to specific application requirements, the application fields have developed and now include:

  • x-ray tubes and image intensifiers for medical computerised tomography and radiography

  • kicker chambers and accelerator components for particle physics

  • down-hole instrumentation devices for oil exploration and production

  • high-voltage and high-current connectors for off-shore power supplies

  • nuclear reactor instrumentation

Components for Medical Technology

Components for Particle Research

Vacuum applications


Precise diagnosis and optimal treatment - FRIALIT-DEGUSSIT Oxide Ceramics in Medical Technology

The X-ray tube lies at the very heart of computerised tomography. It enables doctors to reach a precise diagnosis while keeping patient radiation exposure to a minimum.

The key components indispensable for modern X-ray diagnostics are the X-ray tube and X-ray image intensifier components made of FRIALIT- DEGUSSIT Oxide Ceramics.

Our oxide ceramic products are the result of decades of experience combined with intensive research and development and customer-focused product implementation. The X-ray image intensifier made by FRIATEC is an outstanding example of successful and sustainable cooperation with our customers. Tried and tested over many years, the product has been well-proven in practice and is now used in the field of radiology throughout the world.

The Heidelberg Ion-Beam Therapy Centre (HIT), designed as the first German institute for clinical radiation therapy, and currently the only therapy unit for heavy ions in Europe, rely on our oxide ceramics.

Kicker chambers made of FRIALITDEGUSSIT Oxide Ceramics are fundamental components of the accelerator. They ensure optimum therapeutic results while at the same time minimizing the radiation dose for the patient

The X-ray tube, the heart of computerised tomography. The use of oxide ceramics guarantees a long lifetime and high thermal resistance, thus making CT scanning a standard procedure for quick and reliable diagnostics. The X-ray image intensifier for radiography enables precise diagnoses to be made while at the same time minimizing the radiation dose. The kicker chamber of the particle accelerator ensures optimum therapeutic results with maximum conservation of healthy tissue.

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High-Tech Materials for Particle Research

Vacuum chambers made of FRIALIT-DEGUSSIT Oxide Ceramics are used in accelerator units. In fast-pulsed bending magnets they also serve the purpose of injecting and extracting particles.

Demands on components made of oxide ceramics are extremely high during operation. High mechanical strength and loading capacity ensure reliability during operation. Components made of ceramic-to-metal compounds boast numerous exceptional properties: They provide maximum electrical insulation, remain fully tight under extreme pressure or vacuum conditions, are exceptionally corrosion-resistant and even withstand temperatures exceeding 350 C.

In contrast to metallic parts, ceramic components avoid the shielding of the rapidly changing external magnetic fields. Ceramic material is not heated by eddy currents. The additional coating on the inner surfaces of the ceramic chambers, e.g. Ti or TiN, ensures the reliable discharge of image current and prevents secondary electron emission.

The kicker chamber made of FRIALIT-DEGUSSIT Oxide Ceramics is not heated by magnetic fields and ensures rapid and precise control of the beam.
215 x L 400 mm
Vacuum chambers for particle accelerators made of FRIALIT-DEGUSSIT Oxide Ceramics: The Ti or TiN coating ensures reliable discharge of image current.
150 x L 300 mm
In the high-voltage accelerator the particles are pre-accelerated directly after the ion / electron source and then led into the ring accelerator.
350 x L 560 mm

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Precision Equipment for Research

In close cooperation with scientists, FRIATEC develops customized solutions of the highest technological standard. For this purpose FRIATEC carefully selects the best ceramic-to-metal compound for each application.  A wide variety of compounds can be implemented either by traditional methods using metalized ceramics or by active welding.

A wide variety of magnetic and nonmagnetic metals are here available.  Due to their exceptional properties and the individual approaches offered, accelerator units made of FRIALIT-DEGUSSIT Oxide Ceramics are the products of choice in renowned German institutes. These include the German Electron-Synchrotron Foundation (DESY) based in Hamburg and Zeuthen, the Jlich Research Centre (FZJ), the Helmholtz Centre for Heavy-Ion Research (GSI) in Darmstadt and the Karlsruhe Institute of Technology (KIT).

Also at international level many institutes rely on accelerator units made of FRIALIT-DEGUSSIT Oxide Ceramics: the Large Hadron Collider (LHC) at CERN, the European Organization for Nuclear Research in Switzerland, Cornell University, Ithaca, USA, and the Budker Institute of Nuclear Physics (BINP) at Nowosibirsk in Russia.

These high-voltage insulators for electron sources consist of layers of brazed ceramics and metal electrode rings with welded CF flanges
560 x L 450 mm
In order to increase insulation the  insulators and high-voltage feedthroughs are fitted with ribs. Glazing provides for a dirt-resistant surface.
340 x L 585 mm
Individual vacuum chambers made of FRIALIT-DEGUSSIT Oxide Ceramics are produced in close cooperation with the customer.
215 x L 400 mm

The ultra-high vacuum places new demands on conventional materials and joining techniques. Components made of FRIALIT-DEGUSSIT Oxide Ceramics are able to fully meet these challenges and show their strengths in the vacuum.

Minimum outgassing and leakage rates combined with optimum electrical insulation and thermal resistance guarantee an excellent level of reliability. Electrical feedthroughs made of ceramic-to-metal components allow transmission of the smallest measurement signals between the vacuum chamber and the outside. Insulation tubes provide reliable separation of areas with different potentials. With crucibles made of FRIALIT-DEGUSSIT Oxide Ceramics materials can be reliably evaporated in the vacuum. Capillaries, tubes and insulating beads ensure perfect electrical insulation in vacuum chambers. Focusing units in electron microscopes require tolerances of just a few μm. Only this enables the most varied products from research and technology to be examined at maximum resolution and depth of field. The lowest leakage and desorption rates are decisive for the functionality of the microscope.

Due to their shape stability and outstanding electrical insulation properties, components made of FRIALIT-DEGUSSIT Oxide Ceramics guarantee excellent measurement results.

Single and multiple feedthroughs for ultra high-vacuum applications using FRIALIT-DEGUSSIT Oxide Ceramics ensure maximum electrical insulation with minimum outgassing and leakage rates. FRIATEC insulation tubes provide maximum insulation and remain tight at extreme pressure and vacuum conditions and even resist temperatures exceeding 350 C. Whether high current, high voltage or measurement signals, FRIATEC manufactures tailor-made and standard components to customer specifications.

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Last modified:
Tuesday, 08 January 2013