Need Tantalum Coating on Silver !!

hello,

I'm a musician/flute player and am researching into the acoustic value of different metals in the making of the musical instrument in general, and flute in particular.

As part of this ongoing research I'm interested in coating a silver flute or parts of it with tantalum or niobium as they have shown interesting acoustic properties.

I have contacted several PVD companies but the issue is the high temperatures involved in the PVD process -- close to the melting point of silver.

I am looking into "cold" tantalum (or even tantalum composites) coatings over silver and would be very grateful for some practical suggestions.

Please help.
Thanks!

I didn't find the right solution from the Internet.

Reference:
www.finishing.com/583/03.shtml


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