THE COMPATIBILITY OF UO$sub 2$ WITH THE REFRACTORY METALS AND REFRACTORY METAL THERMOCOUPLES AT TEMPERATURES ABOVE 1750 C
Technical Report
·
OSTI ID:4075828
Tungsten, rhenium, tantalum, molybdenum, and niobium were heated in contact with UO/sub 2/ at temperatures up to 2660 deg C. Tungsten and rhenium exhibited no evidence of reaction. UO/sub 2/ adhered slightly to molybdenum, tantalum, and niobium; but no attack could be detected. Thermocouples of the five metals were fabricated and tested up to 1200 deg C with and without UO/sub 2/ present in the system. The W-Re, Mo-Re, and Mo-W combinations were found to be the only promising thermocouples. The W-Re thermocouple proved to be the most satisfactory, exhibiting good sensitivity and stability. (auth)
- Research Organization:
- Atomic Energy of Canada Ltd. Chalk River Project, Chalk River, Ont.
- NSA Number:
- NSA-15-006330
- OSTI ID:
- 4075828
- Report Number(s):
- CRFD-971; AECL-1126
- Country of Publication:
- Canada
- Language:
- English
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