Microstructural characteristics of a fresh U(Mo) monolithic mini-plate: Focus on the Zr coating deposited by PVD

Xaviere Iltis; Doris Drouan; Thierry Blay; Isabelle Zacharie; Catherine Sabathier; Claire Onofri; Christian Steyer; Christian Schwarz; Bruno Baumeister; Jer ome Allenou; Bertrand Stepnik; Winfried Petry

doi:https://doi.org/10.1016/j.net.2021.02.026

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저자정보: Xaviere Iltis (CEA) Doris Drouan (CEA) Thierry Blay (CEA) Isabelle Zacharie (CEA) Catherine Sabathier (CEA) Claire Onofri (CEA) Christian Steyer (Technische Universitat München) Christian Schwarz (Technische Universitat München) Bruno Baumeister (Technische Universitat München) Jer ome Allenou (FRAMATOME, CERCA, SPL, ZI Les Berauds) Bertrand Stepnik (FRAMATOME, CERCA, SPL, ZI Les Berauds) Winfried Petry (Technische Universitat München)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제8호

발행연도: 2021.8

수록면: 2,629 - 2,639 (11page)

DOI: https://doi.org/10.1016/j.net.2021.02.026

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Within the frame of the EMPIrE test, four monolithic mini-plates were irradiated in the ATR reactor. Intwo of them, the monolithic U(Mo) foil had been PVD-coated with Zr before the plate manufacturing. Extensive microstructural characterizations were performed on a fresh archive mini-plate, using OpticalMicroscopy (OM), Scanning Electron Microscopy (SEM) combined with Energy Dispersive Spectroscopy(EDS), Electron Backscattered Diffraction (EBSD) and Focused Ion Beam (FIB)/Transmission ElectronMicroscopy (TEM) with nano EDS. A particular attention was paid to the examination of the U(Mo) foil,the PVD coating, the cladding/Zr and Zr/U(Mo) interfaces. The Zr coating has a thickness around 15 mm. It has a columnar microstructure and appears dense. Thecohesion of the cladding/Zr and Zr/U(Mo) interfaces seems to be satisfactory. An almost continuous layerwith a thickness of the order of 100e300 nm is present at the cladding/Zr interface and corresponds toan oxidized part of the Zr coating. At the Zr/U(Mo) interface, a thin discontinuous layer is observed. Itcould correspond to locally oxidized U(Mo). This work provides a basis for interpreting the results of characterizations on EMPIrE irradiated plates

#U(Mo) #Monolithic #Coating #Microstructure

참고문헌 (3)

참고문헌 신청

Y. S. Kim / 2012 / Uranium intermetallic fuels (U-Al, U-Si, U-Mo) / Comprehensive Nuclear Materials 3(14):392~422

S. Van den Berghe / 2014 / Review of 15 years of High-density Low-enriched UMo Dispersion Fuel Development for Research Reactors in Europe / Nuclear Engineering and Technology 46(2):125~146

M.K. Meyer / 2014 / Irradiation Performance of U-Mo Monolithic Fuel / Nuclear Engineering and Technology 46(2):169~182

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