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Comparative plasma SNMS and AES measurements on ceramic powders and fibres

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Abstract

SNMS depth profiles of layers of 0.4–0.8 μm sized Si3N4, BN and partly SiC-coated B4C powder particles and of 10 μm sized SiC fibres are obtained without great expenditure on time and specimen preparation. Close contact with Au foil provides for electrical conductivity. Averaged depth profiles of a great number of particles or fibres are obtained. AES serves as a comparative method; the carrier-gas heat extraction (inert gas fusion) technique is used for the semiquantification of OH signals in SNMS. Esterification of surface OH with ethanol during suspension is not detectable. Hydrolyzation or oxidation reactions having penetrated through the bulk of BN particles cause qualitatively different depth profiles than found on Si3N4 particles carrying a nm thin “natural” (hydr-)oxidic layer. The effects of preparative surface reactions like additive coating (SiC on B4C particles), etching and oxidation (of SiC fibres) can be monitored. Quantification attempts yield standard deviations between 10 and 50%.

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Authors and Affiliations

  1. Institut für Spektrochemie und angewandte Spektroskopie (ISAS), Bunsen-Kirchhoff-Strasse 11, Postfach 10 13 52, D-W-4600, Dortmund 1, Federal Republic of Germany

    Holger Jenett & Susanne Bredendiek-Kämper

  2. Laboratorium für Reinststoffanalytik, Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Bunsen-Kirchhoff-Strasse 13, Postfach 10 13 52, D-W-4600, Dortmund 1, Federal Republic of Germany

    Jan Sunderkötter

Authors
  1. Holger Jenett
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  2. Susanne Bredendiek-Kämper
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  3. Jan Sunderkötter
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Presented on the 15. Kollquium über Werkstoffanalytik, Vienna, May 27–29, 1991

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Jenett, H., Bredendiek-Kämper, S. & Sunderkötter, J. Comparative plasma SNMS and AES measurements on ceramic powders and fibres. Mikrochim Acta 110, 13–22 (1993). https://doi.org/10.1007/BF01243980

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  • DOI: https://doi.org/10.1007/BF01243980

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