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US 7,374,647 B2Granted
Arrangement of an electrode, method for making same, and use thereof
AssigneeOro AS
InventorsAtle Mundheim, Lasse Kroknes
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Abstract
A device of an electrode is disclosed, comprising a core and a surface coating of electrically-conductive material, and it is characterized by that the surface coating comprises one or several layers with a pore-free surface, each with a thickness of 0.005 mm to 0.050 mm, and formed by spraying, especially with a vacuum plasma spray technique.
Claims4
An anode comprising
- a core;
- at least one spray coated electrically conductive layer of material on said core having a thickness of from 0.005 mm to 0.050 mm and a pore-free surface, the material of said layer being selected from the group consisting of at least one of tantalum, niobium, hafnium, zirconium and an alloy composed of any one of tantalum, niobium, hafnium and zirconium;
- and
- a second spray coated electrically conductive layer of material on said one layer having a thickness of from 0.005 mm to 0.050 mm and a pore-free surface, the material of said second layer being selected from the group consisting of at least one of platinum, rhodium, iridium, ruthenium, palladium, and an alloy of platinum, rhodium, iridium, ruthenium and palladium;
- and
- a third spray coated electrically conductive layer between said one layer and said second layer, the material of said third layer being selected from the group consisting of at least one of tantalum, niobium, hafnium, zirconium and an alloy of any one of tantalum, niobium, hafnium, zirconium.
3 more elements
Dependencies are inferred from the claim text.