Chapter 11. Chemical Characterization of Materials for Pyrochemical Applications

  1. John B. Wachtman Jr.
  1. David F. McLaughlin

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314272.ch11

A Collection of Papers on Engineering Aspects of Fabrication of Ceramics: Ceramic Engineering and Science Proceedings, Volume 14, Issue 11/12

A Collection of Papers on Engineering Aspects of Fabrication of Ceramics: Ceramic Engineering and Science Proceedings, Volume 14, Issue 11/12

How to Cite

McLaughlin, D. F. (1993) Chemical Characterization of Materials for Pyrochemical Applications, in A Collection of Papers on Engineering Aspects of Fabrication of Ceramics: Ceramic Engineering and Science Proceedings, Volume 14, Issue 11/12 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314272.ch11

Author Information

  1. Westinghouse Science and Technology Center Pittsburgh, PA 15235

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1993

ISBN Information

Print ISBN: 9780470375280

Online ISBN: 9780470314272

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Keywords:

  • metallographic;
  • phenomena;
  • plutonium;
  • pyrochemical;
  • neutron

Summary

Pyrochemical (molten salt) processing of special nuclear materials combines severe operating temperatures, simultaneous exposure to aggressive oxidizing and reducing species, and critical product purity requirements, leading to stringent demands on new candidate materials requiring careful chemical characterization. Thermochemical modeling of chemical equilibria and carefully designed corrosion testing combined with modern instrumental analytical techniques (including SEM, EDS, WDS/microprobe, Auger, metallographic analysis, X-ray diffraction, and ICP spectroscopy) can be used to evaluate such phenomena as mechanisms of corrosive failure, selective leaching of alloy components, formation of insoluble phases, loss of thermal shock resistance, and intercalation.