HIGH TEMPERATURE OXIDATION RESISTANT COATINGS FOR TANTALUM BASE ALLOYS. Quarterly Progress Report No. 3, Period Covered December 1, 1960-February 28, 1961
Technical Report
·
OSTI ID:4051085
Aluminide and beryllide coatings were applied to the Ta-10% W alloy and a Nb alloy sheet and evaluated at temperatures of 2500 deg F and higher by a number of oxidation methods. The aluminide coatings were applied by hot dipping, pack calonizing, and slurry painting or sprayihg, Various coating thickness of the beryllides were applied by vapor-solid reactions. The pure aluminides and beryllides gave good isothermal oxidation protection but thermal cycling caused more rapid failure. Adding tin to the aluminum coatings greatly improves cyclic oxidation resistance, A sprayed 50% Sn-50% Al coating will withstand cyclic oxidation for ten hours or more in the temperature range of 2500 deg to 3000 deg F. (auth)
- Research Organization:
- Sylvania-Corning Nuclear Corp., Bayside, N.Y.
- NSA Number:
- NSA-15-014726
- OSTI ID:
- 4051085
- Report Number(s):
- SCNC-323
- Country of Publication:
- United States
- Language:
- English
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