High temperature silicide protective coating slurry

摘要

A coating slurry comprised of 42 percent silicon and 10 percent chromium metal powders; 45 percent lacquer base including toluene, xylene, and a polymeric binder; and 3 percent antisettling agent. After the slurry has been applied and then subjected to a high temperature vacuum processing, a ceramic coating is obtained which provides 3000 DEG F. high temperature oxidation protection for a refractory tantalum alloy substrate.