NDLI: Analysis of carbon/carbon fragments from the columbia tragedy

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Analysis of carbon/carbon fragments from the columbia tragedy

Content Provider	NASA Technical Reports Server (NTRS)
Author	Jacobson, Nathan S. Tallant, David R. Simpson, Regina L.
Copyright Year	2005
Description	The extensive investigation following the Space Shuttle Orbiter Columbia accident of February 1, 2003 determined that hot gases entered the wing through a breach in the protective reinforced carbon/carbon (RCC) leading edge. In the current study, the exposed edges of the recovered RCC from the vicinity of the breach are examined with scanning electron microscopy and Raman spectroscopy. Electron microscopy of the exposed edges revealed regions of pointed carbon fibers, characteristic of exposure to high temperature oxidizing gases. The Raman technique relates the observed 1350 and 1580 to 1600 cm(-1) bands to graphitic dom ains and their corresponding temperatures of formation. Some of the regions showed evidence of exposure temperatures beyond 2700 ?C during the accident.
File Size	16085380
Page Count	28
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20060004788
Archival Resource Key	ark:/13960/t24b8206s
Language	English
Publisher Date	2005-12-01
Access Restriction	Open
Subject Keyword	Space Transportation And Safety Carbon-carbon Composites Scanning Electron Microscopy Carbon Fibers Wings Oxidation High Temperature Gases Electron Microscopy Space Shuttle Orbiters Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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