On the Application of Acoustic Emission Analysis to Evaluate the Integrity of Protective Coatings on High-Temperature Alloys

  • H. Jonas
  • D. Stöver
  • R. Hecker
Conference paper
Part of the Mikrochimica Acta Supplementum book series (MIKROCHIMICA, volume 11)


Protective coatings extend the range of applications for materials. Surface properties can be selectively adapted for each problem. Thus bare high-temperature alloys for heat exchanging units used e.g. in high-temperature systems for producing substitute natural gas do not have sufficient protection against undesirable tritium permeation from the helium primary gas into the substitute natural gas generated. A chromium oxide coating, on the other hand, of only a few µm in thickness ensures a barrier effect combined with an inhibitive factor H = 10001.


Acoustic Emission Protective Coating Hydrogen Permeation Permeation Measurement Permeation Barrier 
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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • H. Jonas
    • 1
  • D. Stöver
    • 1
  • R. Hecker
    • 1
  1. 1.Institut für ReaktorentwicklungKernforschungsanlage Jülich GmbHJülichFederal Republic of Germany

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