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Degradation of Optical Fibers at Carbon-Carbon Pyrolysis Temperatures

  • Jeffrey S. Schoenwald
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

The value of having a sensor capable of monitoring the progress of carbon-carbon fabrication has been previously discussed and continues to be an attractive objective [1, 2]. Acoustic emission, when correlated with gas evolution and temperature profile, has been shown to give a strong indication of the internal stresses produced during pyrolysis and the path taken to achieve stress relief under varying process conditions. A challenging aspect of the process is the high temperature at which in situ sensors must function. Distributed physical proximity to the part under fabrication is critical to insure that the data reflects the material condition in real-time.

Keywords

Acoustic Emission Fresnel Reflection Coated Fiber Acrylate Coating Laser Precision 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    R. C. Addison, “Measurement of Carbon-Carbon Electrical Conductivity During Pyrolysis,” Review of Progress in QNDE Bowdoin College, Brunswick, ME, July 23–28, 1989.Google Scholar
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Jeffrey S. Schoenwald
    • 1
  1. 1.Rockwell International Science CenterThousand OaksUSA

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