NDLI: Burn-resistant, strong metal-matrix composites

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Burn-resistant, strong metal-matrix composites

Content Provider	NASA Technical Reports Server (NTRS)
Author	Stoltzfus, Joel M. Tayal, Moti J.
Copyright Year	2003
Description	Ceramic particulate fillers increase the specific strengths and burn resistances of metals: This is the conclusion drawn by researchers at Johnson Space Center's White Sands Test Facility. The researchers had theorized that the inclusion of ceramic particles in metal tools and other metal objects used in oxygen-rich atmospheres (e.g., in hyperbaric chambers and spacecraft) could reduce the risk of fire and the consequent injury or death of personnel. In such atmospheres, metal objects act as ignition sources, creating fire hazards. However, not all metals are equally hazardous: some are more burn-resistant than others are. It was the researchers purpose to identify a burn-resistant, high-specific-strength ceramic-particle/metal-matrix composite that could be used in oxygen-rich atmospheres. The researchers studied several metals. Nickel and cobalt alloys exhibit high burn resistances and are dense. The researchers next turned to ceramics, which they knew do not act as ignition sources. Unlike metals, ceramics are naturally burn-resistant. Unfortunately, they also exhibit low fracture toughnesses.
File Size	86684
Page Count	1
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110024130
Archival Resource Key	ark:/13960/t8vb33j74
Language	English
Publisher Date	2003-08-01
Access Restriction	Open
Subject Keyword	Composite Materials Ceramic Matrix Composites Nickel Alloys Aluminum Fires Metals Ignition Flammability Silicon Carbides Metal Matrix Composites Ceramics Cobalt Alloys 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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