A superficial preoxydation of the substrate (2) is effected by placing it in contact with an oxidant gas excited by a cool plasma of the substrate (2) situated in the flow post-discharge of the cool plasma used to the oxidant element and heated to an oxidation temperature lower than 500 DEG C. At the surface of the preoxidized substrate (2), a metal oxide is provided by heterogenous oxidation of a metal halide by using a gas mixture comprising an oxidant element activated by a cool plasma. The oxidant gas mixture is set in contact with the halide at the closest vicinity of the substrate arranged in the remote flow post-discharge of the cool plasma. Preferably, the cool plasma is generated by micro-waves. The process may be used particularly for forming a protection coating on a casing tube of a nuclear fuel rod.
申请公布号
WO9617105(A1)
申请公布日期
1996.06.06
申请号
WO1995FR01576
申请日期
1995.11.29
申请人
FRAMATOME;COGEMA;HERTZ, DOMINIQUE;BELMONTE, THIERRY;GAVILLET, JEROME;MICHEL, HENRI
发明人
HERTZ, DOMINIQUE;BELMONTE, THIERRY;GAVILLET, JEROME;MICHEL, HENRI