Processing and Properties of Particle Reinforced MoSi2 Composites for High temperature Applications in Corrosive Atmospheres

  1. Prof. Dr. P. Neumann5,
  2. Dr. D. Allen6 and
  3. Prof. Dr. E. Teuckhoff7
  1. Ricarda Rix1,
  2. Volker Güther1,
  3. Roland Scholl2,
  4. Alexander Böhm2,
  5. Stefan Lohfeld3,
  6. Franz Dettenwanger3,
  7. Michael Schuetze3,
  8. Clemens Korhammer4 and
  9. Ullrich V. Wendorff4

Published Online: 5 JAN 2006

DOI: 10.1002/3527606181.ch56

Steels and Materials for Power Plants, Volume 7

Steels and Materials for Power Plants, Volume 7

How to Cite

Rix, R., Güther, V., Scholl, R., Böhm, A., Lohfeld, S., Dettenwanger, F., Schuetze, M., Korhammer, C. and Wendorff, U. V. (2000) Processing and Properties of Particle Reinforced MoSi2 Composites for High temperature Applications in Corrosive Atmospheres, in Steels and Materials for Power Plants, Volume 7 (eds P. Neumann, D. Allen and E. Teuckhoff), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606181.ch56

Editor Information

  1. 5

    Max-Planck-Institut für Eisenforschung, Max-Planck-Str. 1, 40237 Düsseldorf, Germany

  2. 6

    ABB Asltom Power UK Ltd., Cambridge Road, Whetstone, Leicester LE9 GLH, United Kingdom

  3. 7

    Siemens AG, Postfach 3240, 91050 Erlangen, Germany

Author Information

  1. 1

    GfE Metalle und Materialien GmbH, Research and Development, Nuernberg, Germany

  2. 2

    FhG Institut fuer Angewandte Materialforschung, Dresden, Germany

  3. 3

    Karl-Winnacker-Institut der Dechema e.V., Frankfurt am Main, Germany

  4. 4

    Nabertherm GmbH+Co. Industrieofenbau KG, Bremen, Germany

Publication History

  1. Published Online: 5 JAN 2006
  2. Published Print: 27 JUN 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301959

Online ISBN: 9783527606184

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Keywords:

  • steels for power plants;
  • materials for power plant;
  • processing;
  • properties;
  • particle reinforced MoSi2 composites;
  • high temperature applications in corrosive atmospheres

Summary

A new powder metallurgical processing route for the preparation of particle reinforced MoSi2-composites and the resulting properties are presented. Stoichiometric blends of Mo-powder, Si-powder and different reinforcement particles (oxides, carbides, borides) are activated by high energy ball milling in order to control the MoSi2 phase formation during sintering. The powder has been granulated and compacted by different techniques. Nearly full densification up to 97 % of theoretical density can be achieved by a simple sintering process in an inert atmosphere. Thermomechanical properties at elevated temperatures are improved by particle reinforcements. The corrosion resistance depends strongly on the reinforcement particles. It has been demonstrated, that SiC and Y2O3 have no negative influence at temperatures up to 1600 °C, whereas composites containing borides show poor oxidation behaviour.