Chapter 42. Development of a Fiber Optic Sensor for Ceramic Materials Characterization

  1. John B. Wachtman Jr.
  1. M. A. El-Sherif1,
  2. W. Shih1,
  3. Z. Cai1,
  4. J. Radhakrishnan1,
  5. S. Hu1,
  6. F. K. Ko1,
  7. D. J. Roth2 and
  8. B. Lerch2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314500.ch42

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

How to Cite

El-Sherif, M. A., Shih, W., Cai, Z., Radhakrishnan, J., Hu, S., Ko, F. K., Roth, D. J. and Lerch, B. (1994) Development of a Fiber Optic Sensor for Ceramic Materials Characterization, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314500.ch42

Author Information

  1. 1

    Fibrous Materials Research Center, Drexel University, Philadelphia, PA

  2. 2

    NASA Lewis Research Center, Cleveland, OH

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375327

Online ISBN: 9780470314500

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Keywords:

  • sapphire;
  • waveguides;
  • perturbation;
  • intrinsic sensors;
  • sinusoidal;
  • emulsion

Summary

A novel sapphire optical waveguide has been developed for high temperature applications. A single crystal optical grade sapphire fiber was coated with two layers of alumina and SiC in order to construct an optical waveguide. Optomechanical tests were performed in order to examine the fiber response to external stresses. In this paper, the optical response of sapphire fibers to microbending is briefly presented and the development of a processing methodology to embed these optical fibers in alumina matrix is reported. Several coupons were successfully fabricated and examined by thermal cycling tests.