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Technical Ceramics

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Al2O3 Aluminum Oxide Alumina Ceramic Pin

Alumina ceramic (Aluminum Oxide or Al2O3) is the most widely used addvanced ceramic material with near limitless manufacturing capabilities. They are grouped together based on purity levels, as the purity of Alumina’s increases, wear and corrosion resistance also increases.
  • Density :

    3.65 - 3.90 g/cm3
  • Max. Service Temp. :

    1500 - 1800 degree C
  • Thermal Conductivity :

    20 - 30 W/m.K
  • Dielectric Strength :

    15 - 20 KV/mm
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Product Detail

Material Introdution


Alumina (Al2O3) is one of the most widely specified, general-purpose technical ceramics. All aluminas are very hard and wear resistant, with high compressive strength even against extreme temperatures and corrosive environments. Aluminas are also excellent electrical insulators and are gas tight. Aluminum Oxide Ceramic is produced by firing a tightly packed powder form of Al2O3 which includes some binder material. Commercially available grades range from 90% up to 99.8% with the higher purity generating somewhat higher hardness. It is possible to machine alumina using diamond grinding techniques. Polishing is also possible, with the degree attainable affected by alumina grain size and production technique, whether pressed or extruded.


  High Hardness
  Low Coefficient of Thermal Expansion
  Excellent Electrical Insulator
  Mechanically Stable at High Temperature
  Good Thermal Shock Resistance
  High density, non-porous and vacuum tight
  Resists Abrasive Wear and Chemical Attack
  ......


Materials' Properties


ALUMINA CERAMIC MATERIAL PROPERTIES

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