High temperature silicide protective coating slurry

Details High temperature silicide protective coating slurry High temperature silicide protective coating slurry

1991-03-21

1991-08-27

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524442, 524476, 524478, 524479, 524480, 524848, C08J 716, C08K 308, C08L 3310

Patent

active

050433784

ABSTRACT:
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.degree. F. high temperature oxidation protection for a refractory tantalum alloy substrate.

REFERENCES:
"Development of a Fused Slurry Silicide Coating for the Protection of Tanum Alloys", C. M. Packer and R. A. Perkins; Journal of the Less Common Metals, 37(1974), 361-378.
Naval Ordnance Command Weapon Specification 17302 (NAVORD WS 17302), entitled Material Specification, Slurry, Hafnium Silicide.
Final Report No. VHP-SDC-572 prepared for NASA Marshall Flight Center under contract NAS 8-27280, dated Apr. 1972, by VAC-HYD Processing Corp., entitled: Coating and Processing of Columbium Panels for Space Shuttle Application.

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