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Journal of Materials Science

, Volume 29, Issue 14, pp 3759–3766 | Cite as

SIMS, EDX, EELS, AES, XPS study of interphases in nicalon fibre-LAS glass matrix composites

Part I Composition of the interphases
  • M. Lancin
  • C. Ponthieu
  • C. Marhic
  • M. Miloche
Article

Abstract

Secondary ion mass spectrometry (SIMS) and energy dispersive X-ray spectroscopy (EDX) were used to analyse interphases which develop at the fibre—matrix interface during fabrication of SiC nicalon fibre—LAS (Li2O, Al2O3, SiO2) or LAS+Nb2O5 glass matrix composites. SIMS was performed on fibres extracted from composites by dissolution of the matrix in hydrofluoric acid (HF). The composition of the interphases which remain on the fibre periphery was studied using sputter-depth profiling. EDX analysis of the interphases was performed on nicalon-LAS+Nb2O5 composite cross-sections. These investigations show that in both composites the reaction products at the fibre—matrix interface consist of a carbon layer and a silicate phase, rich in oxygen, located between the carbon layer and the fibre core. The analyses also demonstrate the efficiency of SIMS for analysing compositional changes in the near surface of fibres of small diameter.

Keywords

Al2O3 Nb2O5 Li2O Hydrofluoric Acid Carbon Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • M. Lancin
    • 1
  • C. Ponthieu
    • 2
  • C. Marhic
    • 2
  • M. Miloche
    • 2
  1. 1.Physique CristallineIMNNantes-cedex 03France
  2. 2.Physique des MatériauxCNRSMeudon-cedexFrance

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