The Effect of Zr addition on oxide particle morphology in ODS-Cu

Saito, Toshiki*; Yu, H.*; Inoue, Koji*; Zimo, G.*; Kondo, Sosuke*; Nagai, Yasuyoshi*; Oba, Yojiro ; Hiroi, Kosuke ; Kasada, Ryuta*

Oxide-dispersion-strengthened copper alloys (ODS-Cu) have excellent high strength and thermal conductivity and thus are promising materials for divertor heat sink in future fusion reactors. Zr addtion is effective for the improvement of mechanical and irradiation properties because Zr gives the refinement and densification of the oxide particles. Nanostructural observation using small-angle X-ray scattering, three-dimensional atom probe tomography, and transmission electron microscope provide that Zr forms yttria-stabilized zirconia (YSZ). This can be related to the refinement of the oxide particles.

Language	:	English
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Meeting title	:	21st International Conference on Fusion Reactor Materials (ICFRM-21)
Held date	:	2023/10
Location (city)	:	Granada
Location (country)	:	Spain
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Keywords	:	no keyword
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Registration No. : BB20221857
JAEA Abstracts No. :
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