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What material will not diffuse with titanium at 1600 °F. ?

Does anyone know a suitable metal or material that does not diffuse or alloy with titanium alloy (Ti6V4Al) during heat treatment above 1600 F in air? The purpose is to prevent oxidation.

Mandar Sunthankar
- Fort Collins, Colorado
1998

1998

Mandar,

A thin layer of silicon might work. It will form a silicide layer on the titanium and the surface of the silicide will oxidize to SiO2 to give a protective layer. This approach is used on molybdenum heater elements for air furnaces.

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]

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