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选用Zn、Sn、Au三种金属制备汞齐,在铀表面开展了汞齐法涂层制备工艺研究,利用SEM和EDS对涂层进行了表征,主要研究汞齐法在铀表面制备涂层的工艺,包括镀前处理、氧化层对涂层性能的影响。结果表明:采用汞齐法在铀表面制备金属涂层的方法是可行的,在轻微氧化的样品表面能利用该方法制得结合良好的涂层,氧化层在制备过程中弥散于涂层内。1:1HNO3去除氧化层后,可以制备界面均匀、结合紧密的高质量涂层。可单次制备20～50μm范围的Zn、Sn涂层,可多次制备较厚的Au涂层。
The amalgam was prepared by using Zn, Sn, Au and the amalgam was prepared on the surface of uranium. The coating was characterized by SEM and EDS. The main research was the amalgam method for preparing coating on uranium surface Process, including pre-plating, oxide layer on the coating performance. The results show that it is feasible to use amalgam method to prepare metal coating on uranium surface. This method can be used to produce a well-coated coating on the surface of slightly oxidized sample. The oxide layer is dispersed in the coating during the preparation process. 1: 1HNO3 After removing the oxide layer, it is possible to prepare a high-quality coating with uniform interface and close adhesion. The Zn and Sn coatings in the range of 20-50μm can be prepared in one shot, and thicker Au coatings can be prepared more than once.