2024-03-29T15:14:28Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02012412
2023-08-03T05:25:16Z
1642838163960:1642838338003
1642838403551:1642838405037
Hydrogen retention behavior of beryllides as advanced neutron multipliers
Fujii, Y.
Miyamoto, M.
Kim, Jae-Hwan
Nakamichi, M.
Murayoshi, N.
Iwakiri, H.
open access
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0
https://creativecommons.org/licenses/by-nc-nd/4.0/
Thermal desorption spectroscopy
Transmission electron microscopy
Hydrogen
Be12Ti
Microstructure
Beryllium intermetallic compounds (beryllides) are the most promising candidate materials for use as advanced neutron multipliers in future fusion reactors because of their low swelling and high stability at high temperatures. Recently, beryllium–titanium beryllide pebbles such as Be12Ti have been successfully fabricated using a novel granulation process. In this study, the fundamental aspects of the behavior of hydrogen isotopes in Be12Ti pebbles were investigated via thermal desorption spectroscopy and transmission electron microscopy. In addition, atomistic calculations using first principles electronic-structure methods were applied to determine the solution energy of hydrogen in Be12Ti. The results showed simpler and weaker hydrogen-trapping efficiency for Be12Ti than for pure Be.
論文
Elsevier
2016-12
eng
journal article
VoR
http://hdl.handle.net/20.500.12000/45974
http://hdl.handle.net/20.500.12000/45974
https://u-ryukyu.repo.nii.ac.jp/records/2012412
https://doi.org/10.1016/j.nme.2016.03.001
https://doi.org/10.1016/j.nme.2016.03.001
2352-1791
Nuclear Materials and Energy
9
233
236
https://u-ryukyu.repo.nii.ac.jp/record/2012412/files/1-s2.0-S2352179115300806-main.pdf