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Activating Refractory Metals

Is there a method to activate Refractory metals (tungsten, tantalum, molydenum) prior to nickel strike. Either with or without HF?

Philip Carey
Plating Shop - Doylestown, Pa
February 10, 2008

Vol. 5, "Surface Engineering" of the ASM Metals Handbook has an excellent chapter on preparing refractory metals for plating, Philip.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
February 12, 2008

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