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  1. rwakelin

    "Valve Metal" origin

    Thanks Nick and Ed. But the "valve metal" I'm talking about is the substrate of an anode, as described below... These anodes are often referred to as composite anodes. Physically, this term refers to a ductile, corrosion resistant base metal covered with the highly conductive stable film...
  2. rwakelin

    "Valve Metal" origin

    Does anybody know the origin of the term "valve metal?" I know what a valve metal is, but not why they use the word "valve." Thanks!

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