采用X射线光电子能谱(XPS)和气相色谱(GC)研究了铀 铌合金在25℃与CO反应后表面层的组成和反应气氛的变化.结果表明,铀铌合金与CO反应后, 表面层形成了UO2,UC(或UCxOy),Nb2O5和NbO等多种物相,反应气氛中有C O2生成.初步探讨了铀铌合金与CO的反应机理.
The surface reaction of uranium-niobium alloy with c arbon monoxide has been studied by x-ray photoelectron spectroscopy(XPS) and gas chromatography(GC).The reaction leads to the formation of UO2,UC/UCxO y,Nb2O5 and NbO on the surface of uranium-niobium alloy after exposure i n the atmosphere of carbon monoxide for 72 hours at 25℃.In the meanwhile CO2 has clearly been detected in the atmosphere after the reactions.The interaction mechanism of uranium-niobium alloy with carbon monoxide has been also discussed.
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