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Stripping tantalum from steel




Is there any chemical or electrochemical way of stripping tantalum from steel?

Donald M. Mattox
Society of Vacuum Coaters
Albuquerque, New Mexico
Donald is the author of:
"Handbook of Physical Vapor Deposition (PVD) Processing" (2010) [on AbeBooks or eBay or Amazon affil links]
and "The Foundations of Vacuum Coating Technology" (2018) on AbeBooks or eBay or Amazon affil links]
2005


Possibly, a thin film could be spalled off by forming tantalum hydride. R. E. Buxbaum et al., U. S. Patent 5,149,420 (1992), cathodically hydrided surfaces of tantalum group metals in aqueous NaOH solution at 22 C. A hydrogen bake-out would be necessary for higher strength steels.

Ken Vlach [deceased]
- Goleta, California
contributor of the year Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2005


You may want to read letter 5648 here.

Guillermo Marrufo
Monterrey, NL, Mexico
2006




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