AES investigations on starting powders for high performance ceramics |
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| Authors: | Holger Jenett Henning Bubert Ralf Riedel Heinz Stadelmann |
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| Affiliation: | (1) Institut für Spektrochemie und angewandte Spektroskopie (ISAS), Bunsen-Kirchhoff-Strasse 11, D-4600 Dortmund 1, Federal Republic of Germany;(2) Pulvermetallurgisches Laboratorium, MPI für Metallforschung, Institut für Werkstoffwissenschaft, Heisenbergstrasse 5, D-7000 Stuttgart 80, Federal Republic of Germany |
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| Abstract: | AES depth profiles on ceramic powders (untreated/hydrolyzed/oxidized/ (Al, Y)2O3 coated Si3N4, [BaO, SiO2] coated Al2O3) are feasible on thin, homogeneous layers or  m sized agglomerations prepared on an Au foil. By means of the depth profiles one can qualitatively characterize the coating around the particles. Factor analysis of the depth profiles on the differently treated Si3N4 powders suggests the existence of an Si2N2O phase on the oxidized sample.Dedicated to Professor Günther Tölg on the occasion of his 60th birthday |
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| Keywords: | ceramics composite powders Si3N4, Si2N2O, Al2O3 Auger factor analysis |
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