Comparison of oxidation behaviour of sintered ceramics produced from various silicon nitride powders

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Abstract

Sintered ceramics produced from two kinds of silicon nitride powder were oxidized at 1000 and 1400°C. The density, the mechanical properties and the phase composition of the oxide layer and the internal region (without the oxide scale) of one material were compared with those of the other. It was found that the difference in the starting powder properties caused differences in the oxide layer thickness, and the phase composition and the mechanical properties of the internal part.

Original languageEnglish
Pages (from-to)101-104
Number of pages4
JournalMaterials Science and Engineering A
Volume263
Issue number1
Publication statusPublished - Apr 30 1999

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Silicon nitride
silicon nitrides
Powders
Oxides
ceramics
Phase composition
Oxidation
oxidation
oxides
mechanical properties
Mechanical properties
silicon nitride

Keywords

  • Mechanical properties
  • Oxidation
  • Phase composition
  • Silicon nitride
  • Surface oxide layer

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

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AB - Sintered ceramics produced from two kinds of silicon nitride powder were oxidized at 1000 and 1400°C. The density, the mechanical properties and the phase composition of the oxide layer and the internal region (without the oxide scale) of one material were compared with those of the other. It was found that the difference in the starting powder properties caused differences in the oxide layer thickness, and the phase composition and the mechanical properties of the internal part.

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KW - Phase composition

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KW - Surface oxide layer

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