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  4. High Temperature Properties of mixed alpha/beta-SIALON Materials
 
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1998
Journal Article
Title

High Temperature Properties of mixed alpha/beta-SIALON Materials

Abstract
The mechanical behavior of mixed alpha/beta-SIAlON materials was studied at elevated temperatures. The high temperature properties of the materials studied was strongly influenced by the chemical composition (alpha-content and grain boundary phase) of the SIAlON's. A high content of alpha-SIAlON was beneficial in terms of creep behavior of the materials. The same materials, however were characterized by a considerably degradated fracture behavior at elevated temperatures in air because of a crack growth process enhanced by the poor oxidation resistance of these materials.
Author(s)
Klemm, H.
Herrmann, M.
Reich, T.
Schubert, C.
Frassek, L.
Wötting, G.
Gugel, E.
Nietfeld, G.
Journal
Journal of the American Ceramic Society  
Language
English
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Keyword(s)
  • creep

  • grain boundary phase

  • oxidation resistance

  • silicon nitride

  • slow crack growth

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