41. Constituent Properties Determination and Model Verification for Ceramic Matrix Composite Systems

  1. Edgar Lara-Curzio
  1. G. Ojard1,
  2. K. Rugg1,
  3. L. Colby1,
  4. M. Colby1,
  5. L. Riester2 and
  6. Y. Gowayed3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291221.ch41

Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2

Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2

How to Cite

Ojard, G., Rugg, K., Colby, L., Colby, M., Riester, L. and Gowayed, Y. (2005) Constituent Properties Determination and Model Verification for Ceramic Matrix Composite Systems, in Mechanical Properties and Performance of Engineering Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 2 (ed E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291221.ch41

Author Information

  1. 1

    Pratt & Whitney 400 Main Street East Hartford, CT 06108

  2. 2

    Oak Ridge National Labs Bethel Valley Road Oak Ridge, TN 37831

  3. 3

    Auburn University Auburn, AL 36849

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982329

Online ISBN: 9780470291221

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Keywords:

  • ceramic matrix composites;
  • pcGina model system;
  • alumina silicate;
  • elastic properties;
  • tow testing

Summary

The increased interest in ceramic matrix composites requires the knowledge and models to manufacture them for their intended use. Prediction of the elastic moduli of composites requires estimates of the in situ properties of each of the phases of the material: fiber, matrix, and interface. Fiber tow testing was done to determine the elastic modulus of fibers. This was followed by nano-indentation of the fibers in the actual composite systems. Nano-indentation was also done on the matrix to determine its elastic properties. The influence of the interface was modeled through its effect on the fiber transverse and shear moduli. All of these properties were entered into the PcGina model system to predict the elastic properties of the CMC systems. The result of the model was compared to a series of mechanical tests to determine the key elastic properties of the composite. This work was performed on the MI SiC/SiC system, the SiC/SiNC system and on an Oxide/Oxide system.