NDLI: Oxidation behavior of carbon fiber reinforced silicon carbide composites

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Oxidation behavior of carbon fiber reinforced silicon carbide composites

Content Provider	NASA Technical Reports Server (NTRS)
Author	Valentin, Victor M.
Copyright Year	1995
Description	Carbon fiber reinforced Silicon Carbide (C-SiC) composites offer high strength at high temperatures and good oxidation resistance. However, these composites present some matrix microcracks which allow the path of oxygen to the fiber. The aim of this research was to study the effectiveness of a new Silicon Carbide (SiC) coating developed by DUPONT-LANXIDE to enhance the oxidation resistance of C-SiC composites. A thermogravimetric analysis was used to determine the oxidation rate of the samples at different temperatures and pressures. The Dupont coat proved to be a good protection for the SiC matrix at temperatures lower than 1240 C at low and high pressures. On the other hand, at temperatures above 1340 C the Dupont coat did not seem to give good protection to the composite fiber and matrix. Even though some results of the tests have been discussed, because of time restraints, only a small portion of the desired tests could be completed. Therefore, no major conclusions or results about the effectiveness of the coat are available at this time.
File Size	267879
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19970003125
Archival Resource Key	ark:/13960/t1bk69b2g
Language	English
Publisher Date	1995-01-01
Access Restriction	Open
Subject Keyword	Composite Materials Microcracks Oxidation Resistance Carbon Fibers Low Pressure Thermogravimetry Fiber Composites Silicon Carbides Coating High Temperature High Strength Protection High Pressure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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