Grazing incidence X-ray diffraction and transmission electron microscopy studies on the oxide formation of molybdenum in a water vapor environment

Journal Article · Sat Apr 23 00:00:00 EDT 2016 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2016.04.010· OSTI ID:1457272

Tang, Ming  ^[1]; Nelson, Andrew T. ^[1]; Wood, Elizabeth S. ^[1]; Maloy, Stuart Andrew  ^[1]; Jiang, Ying-Bing ^[2]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
2. Univ. of New Mexico, Albuquerque, NM (United States)

In this study, to evaluate the feasibility of molybdenum as light water reactor nuclear fuel cladding, the oxidation behavior was tested in water vapor at elevated temperatures. We present experimental results on the oxidation and volatilization of molybdenum using various characterization techniques including grazing incidence X-ray diffraction and transmission electron microscopy. After oxidation testing in water vapor at 600 °C, experiment results show the formation of both MoO₃ and MoO₂. Lastly, with the increasing temperature, MoO₂ is the final oxidation product between 800 and 1200°C, and MoO₃ is volatile at these temperatures.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5); USDOE Office of Electricity (OE), Advanced Grid Research & Development. Power Systems Engineering Research; USDOE Office of Nuclear Energy (NE)
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1457272
• Alternate ID(s): OSTI ID: 1346263
• Report Number(s): LA-UR-15-29640; TRN: US1901344
• Journal Information: Scripta Materialia, Vol. 120, Issue C; ISSN 1359-6462
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
Molybdenum
Oxidation
Water vapor
GIXRD
TEM