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U.S. Department of Energy
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METHOD OF PROTECTING TANTALUM CRUCIBLES AGAINST REACTION WITH MOLTEN URANIUM

Patent ·
OSTI ID:4142353

Tantalum crucibles against reaction with molten uranium by contacting the surfaces to be protected with metallic boron (as powder, vapor, or suspension in a liquid-volatilenonreacting medium, such as acetone and petroleum oil) at about 1800 deg C in vacuum, discontinuing contact with the boron, and heating the crucibles to a temperature of between 1800 aad 2000 deg C, whereby the tantalum boride formed in the first heating step is converted to tantalum monoboride.

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-14-025877
Assignee:
U.S. Atomic Energy Commission
Patent Number(s):
US 2949390
OSTI ID:
4142353
Country of Publication:
United States
Language:
English

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