Materials

We produce tehnical and industrial ceramics from very high quality materials:

  • Aluminium oxide ceramics Al203 according to DIN EN 60672-3 standard.
  • Zirconium oxide ceramics ZrO2:
    • stabilisied with magnesium ZrO2+MgO
    • stabilised with ytrium ZrO2+Y2O3
  • Composite ceramics Al203+ZrO2
  • Composite ceramics Al2TiO5 (Al203+TiO2) (Aluminium Titanate)

TYPICAL PROPERTIES OF CERAMIC MATERIALS; ACCORDING TO EN-DIN 60672-3

CHARACTERISTICS UNITS C110/C120 C220/C221 C410 C530 C610 C786 C795 C799 ZIRCONIA
HARD PORCELAIN STEATITE CORDIERITE CORDIERITE - AR-SILIKAT MULLITE HIGH ALUMINIUM CERAMICS STABILISED WITH Y-TZP STABILISED WITH Mg-PSZ
Nominal composition % Al2O3 SiO2 MgOSiO2 2Mg02Al2O35SiO2 78 62 92 95 99,7 ZrO2 + Y2O3 ZrO2 + MgO
Specific density g/cm3 2,3 2,7 2,1 2,5 2,7 3,63 3,68 3,8 - 3,9 6 5,5
Water absorption % 0 0 0,5 8 - 12 0 0 0 0 0 0
Hardness Mohs       6 8 9 9 9 8 - 9 8
Modulus of elasticity, min. GPa 60 110 - - 100 240 280 300 200 200
Compresive strength MPa 400 850 300 - 550 2000 2300 3000 2800 2500
Flexural strength MPa 50 140 60 30 120 250 280 300 1000 350
Thermal expansion (20 - 1000C) 10-6K-1 4-6 8 2-4 4-6 6 6-8 6-8 7-8 10-11 10
Thermal conductivity (20 - 1000C) W/MK 1,4 2-3 1,2-2 1,5-2 3-5 14-23 17-25 20-30 2,2 3
Resistance to thermal schock °C 150-160 100-150 250 350 150 140 140 150 210-230 180-190
Max. working temperature °C - 1200 1200 1450 1500 1500 1550 1650 1300-1400 1100-1200
Dielectric strenght KV/mm 20 20 10 - 17 15 15 17 9 -
Dielectric constant (20deg. 1Mhz) - 5,5 6 5 5 6 8 8,5 9,5 15-17 -
Dissipation factor at 20 deg., 48-60Hz 10-3 25 1,5 25 - - 0,5 0,5 0,2 0,001-0,002 -

Thanks to a wide range of different materials we can produce articels with following properties:

  • High resistance on abrasion
  • Resistance on high temperature
  • High hardness
  • Resistance on chemicals (base, acids...)
  • Good electro-isolation characteristics
  • Low electrical conductivity

High quality of our ceramic products has enabled us to be present and recognised throughout the world.

Our technologies ( isostatic and mechanic press, extruding, injection moulding and casting) allow us to produce very complicated and dimensionally different products as shown on the following chart.

Modern materials

We make industrial ceramics from high quality materials.

Aluminium Oxide
Ceramic

Zirconium Oxide
Ceramic

Aluminium Oxide
+
Zirconium Oxide
Ceramic

Aluminium Oxide
+
Titanium Oxide
Ceramic

Contact info

AVTO G d.o.o., Šlandrova ulica 4, 1231 Ljubljana, Slovenia

info@avtog.com +386 1 237 35 10