Chapter 33. Tensile and Interlaminar Shear Evaluation of Du Pont Lanxide CMCS

  1. John B. Wachtman Jr.
  1. Michael R. Effinger1,
  2. Dennis S. Tucker2 and
  3. Terry R. Barnett3

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch33

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

How to Cite

Effinger, M. R., Tucker, D. S. and Barnett, T. R. (2008) Tensile and Interlaminar Shear Evaluation of Du Pont Lanxide CMCS, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314876.ch33

Author Information

  1. 1

    NASA/MSFC EH32 MSFC, AL 35812

  2. 2

    NASA/MSFC ES75 MSFC,AL 35812

  3. 3

    Southern Research Institute Birmingham, AL 35211

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375433

Online ISBN: 9780470314876

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Keywords:

  • high-temperature ceramics;
  • heat engines;
  • tensile and interlaminar shear data;
  • ramjet nozzle;
  • integrated combustion chamber

Summary

Mechanical strength properties of high-temperature ceramics are important to their future utilization in heat engines. Tensile and interlaminar shear data are reported for Du Pont Lanxide's* C/SiC and enhanced SiC/SiC ceramic matrix composites (CMCs). Data were generated for specimens with respect to temperature up to 1,650 °C. C/SiC tensile test showed a constant strength of 530 MPa to 815 °C in an air atmosphere. At 1,650 °C, 74-percent strength was maintained. SiC/SiC reached a maximum tensile strength of 286 MPa at 980 °C, while decreasing to 180 MPa at 1,480 °C. Both materials had good modulus retention with increasing temperature. Interlaminar shear results of the SiC/SiC material exhibited increasing strength up to 1,200 °C in an inert atmosphere. Average shear strength of 40 MPa was obtained at 1,540 °C. Average shear strength for C/SiC increased to a maximum of 66 MPa at 1,650 °C.