Environmental aging degradation in continuous fiber ceramic composites

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The thermal stability of two-continuous fiber ceramic composites (CFCC`s) has been assessed. A Nicalon/CaO-Al{sub 2}O{sub 3}-SiO{sub 2} (CAS) glass-ceramic composite has been subjected to unstressed, oxidation heat treatments between 375 and 1200{degrees}C, after which the material was tested in flexure at room temperature. The static fatigue behavior of a chemical vapor infiltrated (CVI) Nicalon/SiC ceramic matrix composite has been assessed in air, between 425 and 1150{degrees}C, both with and without protective seal coating. Severe property degradation was observed due to oxidation of the graphite fiber/matrix interlayer in both CFCC`s.

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8 p.

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Plucknett, K. P.; Lin, H. T.; Braski, D. N. & Becher, P. F. December 31, 1995.

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Description

The thermal stability of two-continuous fiber ceramic composites (CFCC`s) has been assessed. A Nicalon/CaO-Al{sub 2}O{sub 3}-SiO{sub 2} (CAS) glass-ceramic composite has been subjected to unstressed, oxidation heat treatments between 375 and 1200{degrees}C, after which the material was tested in flexure at room temperature. The static fatigue behavior of a chemical vapor infiltrated (CVI) Nicalon/SiC ceramic matrix composite has been assessed in air, between 425 and 1150{degrees}C, both with and without protective seal coating. Severe property degradation was observed due to oxidation of the graphite fiber/matrix interlayer in both CFCC`s.

Physical Description

8 p.

Notes

OSTI as DE96010665

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  • 10. international conference on composite materials, Vancouver (Canada), 14-18 Aug 1995

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  • Other: DE96010665
  • Report No.: CONF-950833--7
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 238341
  • Archival Resource Key: ark:/67531/metadc672703

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  • December 31, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Oct. 3, 2017, 1:05 p.m.

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Plucknett, K. P.; Lin, H. T.; Braski, D. N. & Becher, P. F. Environmental aging degradation in continuous fiber ceramic composites, article, December 31, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc672703/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.