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  4. Colour of gas-pressure-sintered silicon nitride ceramics. Part 1 : Experimental data
 
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2001
Journal Article
Title

Colour of gas-pressure-sintered silicon nitride ceramics. Part 1 : Experimental data

Abstract
Gas-pressure sintering is the most widely used process for manufg. high-performance silicon nitride ceramics. The interaction between the sintering atm. and the silicon nitride ceramics is often featured by an inhomogeneous gray coloration of the near surface area and a gray coloration of the bulk material. In Part I of this work the dependence of the color of the material on the sintering parameters was investigated exptl. It was shown that silicon inclusions having sizes ranging from a few nm up to several .mu.m cause the coloration of the material. Gas pressure, temp. and sintering time influence the formation of the inhomogeneous gray coloration.
Author(s)
Herrmann, M.
Goeb, O.
Journal
Journal of the European Ceramic Society  
DOI
10.1016/S0955-2219(00)00205-3
Language
English
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Keyword(s)
  • silicon nitride ceramic

  • gas pressure

  • sintering

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