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  4. Silicon nitride-Nd2O3/Al2O3 powders prepared by precipitation of the oxide additives
 
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1994
Conference Paper
Title

Silicon nitride-Nd2O3/Al2O3 powders prepared by precipitation of the oxide additives

Other Title
Siliciumnitrid-Nd2O3/Al2O3 Pulver, hergestellt durch Fällung der oxidischen Additive
Abstract
Silicon nitride-Nd2O3/Al2O3 powder mixtures were prepared by in-situ precipitation of the sintering additives as hydroxides from an aqueous nitrate solution. It is shown that the surface charge characteristics of these powders are determined by the oxide additive layer. TEM studies verify the precipitation of nanosized oxide particles on Si3N4. The influence of organic additives on the surface charge properties of the suspended powder is discussed with respect to the preparation and the processing of aqueous slurries.
Author(s)
Richter, H.J.
Hermel, W.
Mainwork
Silicon Nitride 1993. International Conference on Silicon Nitride-Based Ceramics. Proceedings  
Conference
International Conference on Silicon Nitride-Based Ceramics 1993  
DOI
10.4028/www.scientific.net/KEM.89-91.693
Language
English
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Keyword(s)
  • Fällung

  • Oberflächenladung

  • Oberflächenmodifizierung

  • oxide additives

  • oxidische Additive

  • precipitation

  • processing

  • Siliciumnitrid

  • silicon nitride

  • surface charge

  • surface modification

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