We provide expert advice in the selection of materials and supply you with engineering ceramics for the most diverse applications. Among the oxide ceramics, the most commonly used material for high temperature and wear applications is alumina, but we also have zirconia in various grades on offer. In addition, we also supply silicon carbide, silicon nitride, SiAlON, aluminium nitride and other materials on request.

Sheet Gammatec Engineering ceramics

Aluminium oxide (Al2O3) is characterised by high hardness and resistance to abrasive wear, excellent chemical resistance and heat resistance. Its excellent price-performance ratio makes it attractive for many applications.

Zirconia stabilised with yttria (ZrO2/Y2O3) has high strength and toughness at low temperatures. Because the thermal expansion is similar to that of steel, it is often used as a shrink-fit insert in steel tools.

Silicon carbide (SiC) is extremely hard and wear resistant even at high temperatures.

Silicon nitride (Si3N4) has excellent thermal shock resistance and is resistant to liquid aluminium. Its extremely low coefficient of friction makes it suitable as a material for high-quality ball bearings.

SiAlON are a specialist class of high-temperature refractory materials, with high strength at ambient and high temperatures, good thermal shock resistance and exceptional resistance to wetting or corrosion by molten non-ferrous metals. They have found extensive use in non-ferrous molten metal handling.

Aluminium nitride (AlN) offers itself as a material for heat sinks in electronics due to its high thermal conductivity.

COMMON SHAPES AND DIMENSIONS

  • Plates up to 300 mm width and length, max. thickness 10 mm
  • Discs up to 350 mm diameter and up to 10 mm thickness
  • Tubes with 1 or more bores up to 4 m length
  • Trays and boats
  • Crucibles and bowls
  • Slurries for spraying and brush application