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Tabular alumina
Tabular aluminas

The tabular aluminas are produced with the sinter from calcinated alumina at approximately 1.850°C. The end product contains large and plate-like crystals of alpha-calcinated alumina, which gives it the name of tabular alumina. The basic principle for the production of tabular alumina is to produce a thermal-stable and controllable microstructure. This transformation is obtainable after several thermal physical steps.

Tabular alumina has the following typical characteristics:

  • high chemical purity
  • high solidity
  • high melting point – 2,040°C
  • good resistance to thermal shock 
  • high electrical resistance
  • low shrinkage point
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