HfO2 and Ta2O5 as grain growth inhibitors in Eu2O3 |
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| Authors: | RR Suchomel RS Cook MF Berard O Hunter |
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| Affiliation: | Ames Laboratory-U.S. ERDA and Department of Materials Science and Engineering, IOWA State University, Ames, IOWA 50011, USA |
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| Abstract: | Because of the high neutron capture cross section for five consecutive europium isotopes, Eu2O3 is of interest as a control material for nuclear reactors. A tendency toward excessive grain growth degrades its mechanical properties. Small amounts of HfO2 and Ta2O5 were added to the Eu2O3 in attempts to suppress this grain growth. Three at % substitution of Hf for |
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