Actions for Impression creep behavior of atmospheric plasma sprayed and hot pressed MoSi{sub 2}

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Impression creep behavior of atmospheric plasma sprayed and hot pressed MoSi{sub 2}/Si{sub 3}N{sub 4} [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
12 pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The use of MoSi₂ as a high temperature oxidation resistant structural material is hindered by its poor elevated temperature creep resistance. The addition of second phase Si₃N₄ holds promise for improving the creep properties of MoSi₂ without decreasing oxidation resistance. The high temperature impression creep behavior of atmospheric plasma sprayed (APS) and hot pressed (HP) MoSi₂/Si₃N₄ composites was investigated. Values for steady state creep rates, creep activation energies, and creep stress exponents were measured. Grain boundary sliding and splat sliding were found to be the dominant creep mechanisms for the APS samples while grain boundary sliding and plastic deformation were found to be the dominant creep mechanisms for the HP samples.
Report Numbers
E 1.99:la-ur--97-1666
E 1.99: conf-970929--
conf-970929--
la-ur--97-1666
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
09/01/1997.
"la-ur--97-1666"
" conf-970929--"
"DE97008889"
10. national thermal spray conference in conjunction with materials week and the 17. ASM heat treating conference, Indianapolis, IN (United States), 15-19 Sep 1997.
Castro, R.G.; Butt, D.P.; Hollis, K.J.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 14450664