Al2 O3 – aluminium oxide

  • Excellent electrical
    insulation
  • Extremely high mechanical
    strength
  • Very high operating temperature

PSZ – zirconium oxide

  • High thermal expansion (E-modules similar to metal)
  • Very high fracture toughness
  • Oxygen ions (usable memory in the sensor)

ZTA – aluminium oxide-zirconium oxide

  • Optimizing the properties of alumina by zirconia
  • Higher flexural strength
  • Higher thermal expansion
    coefficients

Material Properties

Al2O3 PSZ ZTA
Types and Characteristics
Designation/Purity Aluminium Oxide >99% Zirconium Dioxide Al2O3 / ZrO2
Density [g/cm3] 3,7 – ›4,0 5,0 - 6,0 4,0 - 4,1
Max. Temperature [°C] 1400 - 1700 800 - 1600 1500 - 1600
Temperature-Change-Resistance good good good
Bending-Resistance [MPa] 300 - 580 500 - 1000 400 - 760
Elastic Modulus [GPa] 300 - 380 200 - 210 310 - 380
Hardness/HV10 [GPa] 17-23 11-13 16-17
Thermal Conductivity [W/mK] 19-30 1,5-3 15-23

Tailored Materials

Tailored ceramics for special requirements

In collaboration with the Bosch research campus in Renningen we provide the know-how of 1,500 developers to guarantee the perfect, tailor-made materials for your application. Whether high insulation values ​​or special functional ceramics are required, we will find the perfect material for you. Also composite materials are possible with us - contact us and we will develop an ideal solution for your product!

Functional ceramics of the future

Unexpected possibilities
through in-mold labeling and multi-component ceramics

Through so-called "in-mold labeling" functional layers can be incorporated into the ceramic component. This can be used to produce functional components such as sensors. Even two-component materials are possible, such as a combination of a dense and a porous ceramic material.

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