EVOCERA® - AN EVOLUTION IN HIGH-PERFORMANCE CERAMIC


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DOCERAM Technology Team
+49 (0) 231 / 92 50 25-871
email to technik@doceram.com

EvoCera is a totally innovative material combining the properties of the latest high-performance ceramic with the ductility of steel. Parts from EvoCera can be designed and manufactured based on the finite element method (FEM). This was only typical for steel materials up until now.

Construction elements made of EvoCera retain their uniquely high strength and dimensional stability even under continuous cyclic loads. They are therefore also suitable for critical areas of applications thanks to their innovative ductile properties. This enables the design of safety-relevant components in ceramic quality for the first time.

EVOLUTIONARY ADVANTAGES

Flexibility and plastic ductility
Non-magnetisable and electrically insulating qualities
Outstanding strength and dimensional stability
Calculation and design in accordance with the FEM
High abrasion, corrosion and temperature resistance
Significantly lower strength distribution

THE CERAMIC ALTERNATIVE: FOR SPECIAL APPLICATIONS.

While conventional ceramic materials can break in the event of overloading, EvoCera is predictably ductile in accordance with the FEM calculation. This innovative plastic behaviour based on elastic elongation gives EvoCera an important reserve for safety-relevant components.

In addition, analyses show that components made of EvoCera have a significantly lower material strength variation (Weibull modulus > 50) than conventional industrial ceramic, such as zirconium oxide (ZrO₂).

Material Unit EvoCera® Industrial ceramic
(MgO-PSZ)
Density g/cm3 5,9 > 5,7

Flexural strength σ
(yield stress) 

MPa 400 500
Flexural strength σm MPa 600 500
Weibull modulus   50 15
Plastic deformation ε % 0,8 /

 


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A: Spread of values: EvoCera shows a significant lower spread of strength than industrial ceramic (ZrO2).

B: The slight curve shows a plastic behaviour due to the transformation controlled failure behaviour (contrary to industrial ceramic).


AS STRONG AS CERAMIC. AS RELIABLE AS STEEL.

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The plasticity and strength of EvoCera allow the simulation and design of components in accordance with the FEM, which was only possible up until now with other materials, such as steel or special plastics.

This means: when designing components and parts, you can now take advantage of the unique advantages of industrial high-performance ceramic with EvoCera, even in safetycritical areas of application.


Requirement EvoCera® Industrial steel
(St52)
Corrosion resistance   X

Abrasion resistance

   X
Design based on the FEM    
Chemical resistance   X
Hardness   X
Thermal expansion = =
No electrical conductivity   X
No magnetisability   X
No thermal conductivity   X
Ductility    

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