Novel electrode material with surface subjected to molybdenum infiltration and titanium nitride deposition and preparation method thereof

Abstract

The invention discloses a novel electrode material with the surface subjected to molybdenum infiltration and titanium nitride deposition and a preparation method thereof. The preparation method comprises the following steps: firstly infiltrating an alloy element molybdenum into the surface of an iron-based material by utilizing a plasma surface alloying and multi-arc ion plating composite processing technology so as to form a molybdenum-containing infiltrated layer in metallurgical bonding, and then depositing titanium nitride by sputter plating so as to form the novel electrode material with the surface subjected to molybdenum infiltration and titanium nitride deposition. According to the invention, the steel and iron materials with high quantity, wide range and low price are adopted as the electrode material, and the electrode material has the advantages of good processing property, good conductivity, high strength and low cost. After the surface of the electrode material is subjected to molybdenum infiltration and titanium nitride deposition, the electrode material has the advantages of corrosion resistance, abrasion resistance, high strength and hardness, low resistivity and high bonding force; the specific energy and specific power of the electrode can be improved greatly; the contact resistance is constant; the electricity energy consumption is stable and low.

Description

technical field [0001] The invention belongs to the technical field of surface engineering, in particular to a novel electrode material of surface molybdenum impregnation and titanium nitride deposition and a preparation method thereof. Background technique [0002] In the industrial production of molten salt electrolysis, the electrode material used for electrolysis should have good electrical conductivity, thermal conductivity, strong corrosion resistance and oxidation resistance, good electrochemical stability, excellent mechanical properties, wide source of raw materials, and processing performance. Good, low price and other advantages. Electrode materials for molten salt electrolysis include metals and their alloys, carbon and graphite, oxide ceramics and high melting point metal compounds. Although metal and its alloy electrode materials (such as carbon steel) have good strength, plasticity, machinability, and low cost, they are not corrosion-resistant during use, and...

AI Technical Summary

Problems solved by technology

Although metal and its alloy electrode materials (such as carbon steel) have good strength, plasticity, machinability, and low cost, they are not corrosion-resistant in use, and consume large power and have a short life; stainless steel and titanium metal electrodes, although It has the advantages of corrosion resistance and high strength, but at a certain anode potential, it is easy to form a dense passivation film on the surface. The conductivity of this type of passivation film is extremely poor; graphite electrode materials are not suitable for oxygen-containing In molten salt electrolyte, because the carbon anode will be consumed by electrochemical oxidation at this time, which will adversely affect the production process