Chapter 30. Potential of the Acousto–Ultrasound Method to Characterize the Strength of Hot Gas Filter Materials

  1. Hau-Tay Lin and
  2. Mrityunjay Singh
  1. P. Pastila1,
  2. A.-P. Nikkila1,
  3. T. Mantyla1,
  4. W. Ellingson2,
  5. E. R. Koehl2 and
  6. D. Sandberg2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294758.ch30

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

How to Cite

Pastila, P., Nikkila, A.-P., Mantyla, T., Ellingson, W., Koehl, E. R. and Sandberg, D. (2002) Potential of the Acousto–Ultrasound Method to Characterize the Strength of Hot Gas Filter Materials, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294758.ch30

Author Information

  1. 1

    Tampere University of Technology Institute of Materials Science P.O. Box 589 33101 Tampere Finland

  2. 2

    Argonne National Laboratory Energy Technology Division Building 212 9700 South Cass Avenue Argonne, IL 60439–4838

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375792

Online ISBN: 9780470294758

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Keywords:

  • combustion;
  • filter materials;
  • power plants;
  • cycle technology;
  • gasification atmosphere

Summary

The objective of this work was to assess the potential of acousto-ultrasonic non-destructive evaluation method to characterize the strength of clay-bonded SiC and alumina/mullite based hot gas filter materials. Samples were exposed to high temperature water vapor environments, the stress wave factor (SWF) number was determined by acousto-ultrasound method and the hoop strength was obtained by internal burst testing. The samples were further analysed microstructurally using electron microscopy and x-ray diffraction. Density and porosity were obtained using the Archimedes method. A correlation of hoop strength with averaged SWF was seen. The variation in SWF data and strength along the samples are discussed in terms of density and porosity.