Conductive corrosion-resistant coating as well as preparation method and application thereof

• Main Authors: DING YINGYU, CHANG LUQI, LUO XIEJING, ZHANG JIUHONG, DONG CHAOFANG, LI XIAOGANG
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2024
• Subjects: APPARATUS THEREFOR; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention belongs to the technical field of coating materials, and particularly relates to a conductive corrosion-resistant coating and a preparation method and application thereof.The conductive corrosion-resistant coating is deposited on a metal pole plate substrate through a vacuum gas phase deposition method, and the conductive corrosion-resistant coating is composed of three layers of structures including a Ti bottom layer, a TiNb middle layer and a TiNbN top layer; the TiNb intermediate layer is an overlapped layer composed of Ti atoms and Nb atoms, and the overlapped layer is formed by alternately coating and depositing Ti metal and Nb metal; the TiNbN top layer is a mixed layer composed of Ti atoms, Nb atoms and N atoms. And the mixed layer is formed by alternately coating and depositing Ti nitride and Nb nitride. The defects such as cracks and pores are not observed in the conductive corrosion-resistant coating, the compactness is good, the interface contact resistance is lower, the corrosion pot