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  4. Preparation of Y-doped zirconia by emulsion technique
 
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1989
Conference Paper
Title

Preparation of Y-doped zirconia by emulsion technique

Abstract
Spherical Y-doped zirconia powders have been prepared from water in oil-emulsions of acid stabilized aqueous sols. The precipitation of hydroxides inside the droplets was achieved by an ion exchange process between the aqueous phase and an anion exchange resin, using a phase transfer catalyst as a carrier for the anions through the organic solvent. Azeotropic distillation of the water caused a densification to spherical amorphous particles. Filtration, drying and calcination led to the formation of a tetragonal zirconia powder. Isostatically pressed powder compacts sintered at 1650 degree C to theoretical density.
Author(s)
Rinn, G.
Schmidt, H.
Mainwork
Ceramic Powder Processing Science  
Conference
International Conference of Ceramic Powder Processing Science 1988  
Language
English
Fraunhofer-Institut für Silicatforschung ISC  
Keyword(s)
  • ceramic powder

  • powder processing

  • zirconia powder

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