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U.S. Department of Energy
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METHOD OF PREPARING COATED REFRACTORY WARE

Patent ·
OSTI ID:4231463
A method is presented for preparing a dense, refractory coating on a vessel adapted to the handling of molten metals such as uranium and plutonium. According to the invention, the inner surface of a heat stable container formed of a refractory metal of either niobium, molybdenum, tantalum, or tungsten is coated with molten thorium within 10 minutes so as to present alloying with the refractory metal and then exposed to a reactive atmosphere of nitrogen at a temperature of about 1750 deg for 30 minutes to form a refractory thorium nitride coating.
Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-14-002397
Assignee:
U.S. Atomic Energy Commission
Patent Number(s):
US 2895849
OSTI ID:
4231463
Country of Publication:
United States
Language:
English