Process for the reactive treating of palladium to form a protective coating and article
AssigneeJohnson Matthey PLC
InventorJames Grundy
Life of this patent
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Abstract
Palladium metal or a palladium alloy which has been treated with boric acid so as to have a ceramic surface which is less susceptible to oxidation.
Claims6
Palladium metal or a palladium alloy the surface of which has been treated with boric acid by wetting the surface of the metal or alloy with an aqueous solution consisting essentially of boric acid and then heating the thus wetted metal or alloy until a ceramic-like surface is formed, said surface being less susceptible to oxidation than the metal or alloy surface before said treatment with boric acid.
The process which comprises wetting palladium metal or alloy thereof with an aqueous solution consisting essentially of boric acid and thereafter drying by heating the wet metal or alloy, the heating being continued until a ceramic surface which is less susceptible to oxidation is developed.
Dependencies are inferred from the claim text.