OXIDATION OF ZIRCONIUM AND ZIRCONIUM ALLOYS IN LIQUID SODIUM
Technical Report
·
OSTI ID:4809443
The oxidation of zirconium and several zirconium alloys was investigated in the temperature range of 400 to 635 deg C in a static liquid sodium system with oxygen concentration approximately 10 ppm. A transition from parabolic to linear rate of oxidation was observed in the temperature region 400 to 500 deg C for all of the zirconium alloys except Zircaloy2. Above 500 deg C the transition was not observed and a protective film continued to form. Using the parabolic rate equation to describe the kinetics of oxidation, activation energies of 52.9 plus or minus 0.5 kcal/mole for unalloyed Zr and 45.3 plus or minus 1.5 kcal/ mole for zirconium alloys were found. (auth)
- Research Organization:
- Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
- DOE Contract Number:
- AT(11-1)-GEN-8
- NSA Number:
- NSA-16-010453
- OSTI ID:
- 4809443
- Report Number(s):
- NAA-SR-6674
- Country of Publication:
- United States
- Language:
- English
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