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Regular Trends in Variation of Crystal Structures of Actinide Metals and Their Alloys

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Abstract

The regular trends in variation of crystal structures of 5f actinide metals in their alloys, under theaction of a high pressure, also in alloys of 4f lanthanide metals with plutonium can by explained by par-ticipation of 5f electrons in formation of the interatomic bond. By analogy with the criterion R m R 4f (the ratio of "metallic" radius R m to the radius of 4f shell), used for lanthanide metals, the ratio of the metallic radius to the radius of the trivalent ion (R m/R 3 +) was selected as a measure of this participation. The changes occurring in crystal lattices of americium, curium, and samarium in their alloys with plutonium, phase transitions in transplutonium metals under a high pressure, and also the order of variation of metallic radii along the actinide series are considered.

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  1. Research Institute of Nuclear Reactors, State Scientific Center, Dimitrovgrad, Russia

    V. D. Shushakov

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  1. V. D. Shushakov
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Shushakov, V.D. Regular Trends in Variation of Crystal Structures of Actinide Metals and Their Alloys. Radiochemistry 43, 107–110 (2001). https://doi.org/10.1023/A:1012846711541

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