Aluminum oxide - high-performance material from Doceram, available from Megatron AG
Aluminium oxide has firmly established itself as a high-performance technical material - particularly due to the trend towards miniaturization of components. This development requires materials with adaptable properties and high processing quality. Aluminum oxide meets these requirements to a high degree: it is extremely hard, extremely wear-resistant and exhibits outstanding corrosion resistance. This makes it highly versatile.
Chemically speaking, aluminum oxide (Al₂O₃) is the oxygen compound of the element aluminum. The raw material is bauxite ore, which is broken down into aluminum hydroxide using caustic soda. Through calcination and complex grinding processes, a high-quality, high-purity aluminum oxide is produced.
The aluminum oxide developed by Doceram, which you can obtain from Megatron AG, impresses with its excellent corrosion resistance and high dielectric strength - ideal prerequisites for use as insulation material.
Aluminium oxide is also characterized by its extreme hardness and high resistance to abrasion and wear. Compared to many other technical ceramics, it also has very good thermal conductivity.
Zirconium oxide - top technical ceramics from Doceram, available from Megatron AG
Zirconium oxide is one of the high-performance materials among oxide ceramics. As an inorganic, non-metallic material, it offers exceptional mechanical properties - especially when stabilized with yttrium oxide. Its high strength and excellent crack and impact resistance are outstanding.
Thanks to its low friction compared to steel and its excellent polishability, zirconium oxide is ideal for precise guides, stops and sliding components. It is used wherever high dimensional accuracy and extreme resilience are required at the same time.
The zirconium oxide ceramic developed by Doceram, which you can obtain from Megatron AG, is particularly resistant to thermal, chemical and mechanical influences.
It is not without reason that zirconium oxide is often referred to as "ceramic steel" due to its toughness and resistance - a material that combines the advantages of ceramics with the properties of classic structural materials.
Silicon nitride - high-temperature ceramic from Doceram, available from Megatron AG
Silicon nitride (Si₃N₄) is a high-performance material from the nitride class - a compound of silicon and nitrogen that is characterized by exceptional physical and thermal properties.
The high mechanical strength and low coefficient of thermal expansion are particularly noteworthy. This combination makes silicon nitride ideal for applications with high thermal shock loads. Even at temperatures of up to 1,000 °C, the material remains dimensionally stable and can reliably transmit high forces.
The silicon nitride components developed by Doceram, available from Megatron AG, are frequently used in extreme applications such as soldering and welding - wherever thermal resistance, resilience and reliability are required.
Thanks to its resistance to thermal shock, its hardness and its low density, silicon nitride is a convincing alternative to metallic materials in high-temperature technology.
Cerazur® - partially stabilized zirconium oxide from Doceram, available from Megatron AG
Cerazur® is a high-performance ceramic developed by Doceram on the basis of partially stabilized zirconium oxide. This non-metallic material was specially designed for industrial applications where precision, durability and process reliability are paramount.
With its high flexural strength and hardness, Cerazur® offers a reliable alternative wherever conventional materials such as carbides reach their limits. Thanks to its resistance to mechanical stress, Cerazur® is ideal for demanding manufacturing and machining processes - for example in mechanical engineering, welding technology or forming technology.
The striking blue ceramic impresses with its dimensional stability, wear resistance and resistance to extreme conditions. Cerazur® is available from Megatron AG in various designs - from simple locating pins and high-precision positioning pins to complex component geometries such as test plugs.
Cerazur® provides a reliable and durable solution when technical processes require maximum stability and precision.
EvoCera® - Ceramic innovation from Doceram, available from Megatron AG
EvoCera® is a new type of high-performance material that combines the advantages of modern technical ceramics with the ductile properties of steel. Developed by Doceram and available from Megatron AG, EvoCera® opens up new possibilities in safety-critical areas where metallic materials have dominated until now.
In contrast to conventional industrial ceramics, EvoCera® has an extremely low scatter in material strength - thanks to a significantly increased Weibull modulus (> 50). This makes it possible for the first time to precisely calculate and design ceramic components using FEM (finite element method) - a process that was previously used almost exclusively for steel materials.
EvoCera® remains dimensionally stable and fracture-resistant even under continuous cyclic loading. Thanks to its plastic-ductile properties, the material cannot fail abruptly under overload, but exhibits predictable, transformation-controlled deformation behavior. This "residual reserve" makes EvoCera® ideal for safety-relevant constructions.
| Material | Unit | EvoCera® | Industrial ceramics (MgO-PSZ) |
| Density | g/cm³ | 5,9 | > 5,7 |
| Flexural strength σₑ (yield strength) | MPa | 400 | 500 |
| Bending strength σₘ | MPa | 600 | 500 |
| Weibull module | 50 | 15 | |
| Plastic deformation ε | % | 0,8 | / |
Typical properties at a glance:
Plastically deformable, without brittle fracture behavior
Non-magnetizable, electrically insulating
High flexural strength and dimensional stability
Abrasion, corrosion and temperature resistant
FEM-based design possible
Significantly lower strength variation compared to conventional ceramics such as zirconium oxide
Doceram has been developing and manufacturing industrial advanced ceramics for over 20 years. Ceramic Materials:
An expert engineering team is constantly researching new materials and manufacturing processes to contribute to the technological requirements of future applications.
Using the materials aluminum oxide, zirconium oxide and silicon nitride , Doceram manufactures standard ceramic components as well as complex prototypes, series parts and individual assemblies.
| Property | A-132 | A-141 | Z-141 | Cerazur | Volcera 141 | EvoCera |
|---|---|---|---|---|---|---|
| Material | Al₂O₃ >99.7% | Al₂O₃ >99.99% | ZrO₂ Y-PSZ | ZrO₂ Y-PSZ | Si₃N₄ | - |
| Farbe / Color | ivory / ivory | white / white | white / white | blue / blue | gray, black / grey, black | - |
| Density (g/cm³) | 3.9 | 3.9 | >6.04 | 6.0 | 3.2 | 5.9 |
| Flexural strength (MPa) | 390 | 390 | 1200 | 1300 | 1000 | 400 |
| Compressive strength (MPa) | 3900 | 3900 | 3000 | 3000 | 2500 | 3000 |
| E-module / Modules of Elasticity (GPa) | 390 | 390 | 205 | 205 | 320 | 218 |
| Fracture Toughness (MPa√m) | 5.2 | 5.2 | 8 | 12 | 6.4 | - |
| Weibull module | 12 | 12 | 12 | 25 | 14 | 50 |
| Vickers Hardness / Vickers Hardness (HV 0.5) | 2000 | 2000 | 1300 | 1150 | 1650 | 1047 |
| Thermal expansion / Thermal expansion coefficient (10-⁶K-¹) | 5,5-8,4 | 5,5-8,4 | 10 | 10 | 3.4 | 11.1 |
| Thermal conductivity / Thermal conductivity (W/mK) | 28 | 28 | <2 | <2 | 22 | 3.55 |
| Thermal shock resistance (ΔT°C) | 120 | 180 | 290 | 280 | 830 | - |
| Maximum operating temperature / Maximum use temperature (°C) | 1700 | 1700 | 1000 | 1000 | 1200 | - |
| Spez. Widerstand bei 20°C / Volume Resistivity at 20°C (Ω cm) | >10¹⁷ | >10¹⁵ | >10¹⁰ | >10¹⁰ | >10¹¹ | - |
| Dielectric strength (kV/mm) | 22 | 30 | - | - | 20 | - |
However, Doceram also works intensively, reliably and precisely on solutions for challenging workpieces in a wide variety of industries.
We use technical ceramics in mechanical and plant engineering as well as in the pump industry, welding technology and other sectors.
Megatron as the representative in Switzerland will be pleased to advise you on the use of ceramics in your application. Find out in detail about the three most important materials for the production of advanced ceramics for industrial applications on the following pages.
Doceram's ceramic materials are used in various branches of industry. They are high-quality solutions and include a wide range of products such as wear parts, cutting tools and components.
Doceram wear parts are available in various designs and are valued in the industry for their durability and wear resistance.
Doceram cutting tools are specially designed for precise machining of workpieces and offer high cutting speed and accuracy.
Doceram's components are used in electronic devices and are characterized by their high heat resistance and electrical insulation properties.
Doceram also offers customized solutions because the company works closely with its customers to develop tailor-made ceramic components.
Doceram's ceramic materials are widely used in industry and are applied in areas such as automotive, mechanical engineering and electronics.
The products are characterized by their high quality, reliability and performance because Doceram invests in innovative technologies and manufacturing processes to provide its customers with high-quality ceramic solutions.
The company attaches great importance to research and development in order to continuously improve its products and meet the changing requirements of the industry.
Overall, Doceram's ceramic materials are indispensable components for modern industrial applications because they offer high precision and durability and help optimize processes. They are thus an essential basis for efficient and reliable processes in industry.
The diverse applications of Doceram ceramic materials are a testament to their versatility and ability to meet the specific needs of different industries.
By working closely with customers and developing customized solutions, Doceram helps companies to improve their performance and strengthen their competitiveness in the market.
The continuous development of Doceram's ceramic materials is an indication of the company's commitment to responding to the needs of the industry and offering innovative solutions.
This makes Doceram a reliable partner for the industrial future.
Gas nozzle: VOLCERA after 100 coats in continuous continuous operation and copper after 1 coat.
Centering pin: CERZAUR with 40 times the service life compared to steel.
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