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High-Temperature Materials For Stirling EnginesHeat-resistant piston rings and linings increase engine efficiency. Report discusses research on materials for piston rings and cylinder coatings in automotive Stirling engines. Data from tests show cobalt-based alloy, Stellite 6B, good choice for piston rings and PS200, plasma-sprayed metal-bonded chromium carbide matrix with dispersed solid lubricants, functions well as cylinder coating. Materials make it possible to place piston rings at tops of pistons ("hot" piston rings) instead of at cooler bottoms.
Document ID
19900000168
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Sliney, Harold E. (NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 14, 2013
Publication Date
April 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 4
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LEW-14836
Accession Number
90B10168
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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