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Ceramic Types

Ceramics are generally separated into the following categories. We will tell you some detail about each category and the good points as well.

    Metallic Oxides

  • Abundant and easily fabricated.
  • Good strength and hardness.
  • Wear and Temperature Resistant.
  • Good electrical insulators.
  • Low dielectric loss.

    Glass Ceramic

  • Low, medium or high thermal expansion depending on composition type
  • Good electrical insulators.
  • Transparent
  • One can be machined with steel tools.

    Nitrides and Carbid

  • High strength and oxidation resistant
  • Good electrical insulators
  • High hardness and low density
  • Best abrasion resistance of any ceramic
  • Low strength at high temperatures
  • Used for tool tips
  • Excellent hardness and mechanical strength
  • Good thermal conductivity
  • Good wear and abrasion resistance


  • Good resistance to thermal shock
  • Large range of special optical characteristics
  • Transperent
  • Low thermal expansion and high dielectric strength
  • Good chemical resistance

    Carbon and Graphite

  • Poor strength except when produced as fibre
  • Good electrical and thermal conductivity
  • Creep resistant at high temperatures in non-oxidizing conditions
  • Self-lubricating.
  • Good refractoriness and thermal shock resistance
  • Low density and chemically inert


  • Good chemical and thermal resistance
  • High density, strength, resistivity and dielectric strength
  • Good thermal shock, wear and hot strength
  • Chemically inert

    Ceramic Fibers

  • Oxides spun to fiber and bulked to felt.
  • Used for high temperature insulation including former applications of asbestos