A process for electrochemical deposition of tantalum on an article in an inert, non-oxidizing atmosphere, or under vacuum, in a molten electrolyte containing tantalum ions, comprising the steps of: immersing the article into the molten electrolyte heated to a working temperature, passing an electric current through the electrolyte to thereby deposit a tantalum coating on the article, wherein the process of tantalum deposition at least in an initial phase deposits pure .alpha.-tantalum.

 
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> Pressure limiting valve in a hydraulic machine having a pressure limiting valve

~ 00310