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Iridium/Rhenium Parts For Rocket EnginesOxidation/corrosion of metals at high temperatures primary life-limiting mechanism of parts in rocket engines. Combination of metals greatly increases operating temperature and longevity of these parts. Consists of two transition-element metals - iridium and rhenium - that melt at extremely high temperatures. Maximum operating temperature increased to 2,200 degrees C from 1,400 degrees C. Increases operating lifetimes of small rocket engines by more than factor of 10. Possible to make hotter-operating, longer-lasting components for turbines and other heat engines.
Document ID
19910000320
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Schneider, Steven J.
(NASA Lewis Research Center, Cleveland, OH.)
Harding, John T.
(Ultramet)
Wooten, John R.
(Aerojet TechSystems Co.)
Date Acquired
August 14, 2013
Publication Date
July 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 7
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LEW-14924
Accession Number
91B10320
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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