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Creep behavior of tungsten/niobium and tungsten/niobium-1 percent zirconium composites [electronic resource].

Published
Cleveland, Ohio : Lewis Research Center, 1988.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: (25 pages) : digital, PDF file
Additional Creators
Lewis Research Center and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The creep behavior and microstructural stability of tungsten fiber-reinforced niobium and niobium-1% zirconium was determined at 1400 and 1500°K in order to assess the potential of this material for use in advanced space power systems. The creep behavior of the composite materials could be described a power law creep equation. A linear relationship was found to exist between the minimum creep rate of the composite and the inverse of the composite creep rupture life. The composite materials had an order of magnitude increase in stress to achieve 1 percent creep strain and in rupture strength at test temperatures of 1400 and 1500°K compared to unreinforced material. The composite materials were also stronger than the unreinforced materials by an order of magnitude when density was taken into consideration. Results indicate significant potential improvement in high temperature properties and mass reduction for space power system components. 12 refs., 1 2 figs., 2 tabs.
Report Numbers
E 1.99:doe/nasa/16310-5
E 1.99: nasa-tm--100804
E 1.99: conf-880122--15
E 1.99: conf-880122--
conf-880122--
conf-880122--15
nasa-tm--100804
doe/nasa/16310-5
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Note
Published through SciTech Connect.
01/01/1988.
"doe/nasa/16310-5"
" nasa-tm--100804"
" conf-880122--15"
" conf-880122--"
"DE88008145"
5. symposium on space nuclear power systems, Albuquerque, NM (United States), 11-14 Jan 1988.
Petrasek, D.W.; Titran, R.H.
Funding Information
AI03-86SF16310
View MARC record | catkey: 14462085