Precise observation of spontaneous oscillation of CO oxidation reaction for Rh metal nanoparticle catalyst by using time-resolved X-ray absorption fine structure technique with dispersive optics

Matsumura, Daiju; Kimura, Yusaku*; Tsuji, Takuya; Mizuki, Junichiro*

SPring-8/SACLA Riyo Kenkyu Seikashu (Internet), 11(5), p.296 - 299, 2023/11

https://doi.org/10.18957/rr.11.5.296

no abstracts in English

Sorption structure of cesium in various clay minerals by Cs -edge XAFS measurement

Tsuji, Takuya; Matsumura, Daiju; Kobayashi, Toru

SPring-8/SACLA Riyo Kenkyu Seikashu (Internet), 11(4), p.214 - 217, 2023/08

https://doi.org/10.18957/rr.11.4.214

no abstracts in English

In-operando measurement of internal temperature and stress in lithium-ion batteries

Hirano, Tatsumi*; Maeda, Takehiro*; Murata, Tetsuyuki*; Yamaki, Takahiro*; Matsubara, Eiichiro*; Shobu, Takahisa; Shiro, Ayumi*; Yasuda, Ryo*; Takamatsu, Daiko*

SPring-8/SACLA Riyo Kenkyu Seikashu (Internet), 11(1), p.49 - 57, 2023/02

https://doi.org/10.18957/rr.11.1.49

Evaluation of internal strain distribution of dissimilar laser welding using high energy X-rays

Shobu, Takahisa; Shiro, Ayumi*; Muramatsu, Toshiharu*

SPring-8/SACLA Riyo Kenkyu Seikashu (Internet), 9(5), p.318 - 323, 2021/08

https://doi.org/10.18957/rr.9.5.318

Laser welding has already been put into practical use for various metal materials because the irradiation area is very small and the control is easy. In this study, we evaluated strain, stress, deformation, etc. near the processing affected area by high-energy synchrotron radiation X-ray diffraction method, which is one of the problems of laser welding of different materials that are expected to be put into practical use. As a result of internal deformation measurement of the bonding of dissimilar materials of copper and iron, it was confirmed that the copper side with a high coefficient of linear expansion was hardly deformed, strong tensile strain on the iron side, and a plastic deformation region on the heat-affected zone. In addition, a retained austenite phase, which is thought to be caused by the mixture of copper, was observed in the plastic deformation region of iron, and further problems were clarified in the evaluation of material strength in the mixed metallic materials.

Precise measurement of acoustic phonons in PrFeAsO

Fukuda, Tatsuo; Baron, A. Q. R.*; Uchiyama, Hiroshi*; Nakamura, Hiroki; Ishikado, Motoyuki*; Machida, Masahiko; Shamoto, Shinichi

SPring-8/SACLA Riyo Kenkyu Seikashu (Internet), 3(2), p.290 - 293, 2015/07

http://doi.org/10.18957/rr.3.2.290