Progress in the Research of Surface Corrosion Resistance of Uranium and Plutonium Metals

Fu Yibei,Wang Xiaolin,Zhu Zhengru

Strategic Study of CAE ›› 2000, Vol. 2 ›› Issue (12) : 59 -65.

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Strategic Study of CAE ›› 2000, Vol. 2 ›› Issue (12) : 59 -65.
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Progress in the Research of Surface Corrosion Resistance of Uranium and Plutonium Metals

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Abstract

It has been received considerable attention for surface corrosion resistance of uranium and plutonium metals. This paper is dedicated to the review of progress in the research above field in the laboratory. The surface chemical behavior and compatibility of uranium metal and U3O8 in the atmospheres of CO, CO2,H2 have been systematically studied with X-ray photoelectron spectroscopy (XPS) and gas chromatography (GC). While uranium and plutonium placed in CO atmosphere the oxidation rate of uranium was studied gravimetrically with a microbalance, and the charges of gase phase components was detected by quadruple mass spectrometer. The molecular structure, potential energy function, the corresponding spectroscopic data, thermodynamic and dynamic data of uranium and plutonium metals and compounds were systematically studied using the MP2 (the HF calculation followed by a second-order Moller - Plesset correlation) of Gaussian 94W and the RECP (relativistic effective core potential). The surface chemistry of metals were studied also by thermodynamic calculations in reducing atmospheres. The investigation indicates the metals have resistance to further oxidation corrosion in the atmosphere of CO.

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uranium / plutonium / surface chemistry / relativistic effective core potential (PECP)

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Fu Yibei,Wang Xiaolin,Zhu Zhengru. Progress in the Research of Surface Corrosion Resistance of Uranium and Plutonium Metals. Strategic Study of CAE, 2000, 2(12): 59-65 DOI:

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