Výsledky vyhledávání - "Haru Hisa Uchida"

Mechanochemical CO2 methanation over LaNi-based alloys

Autor: Haru-Hisa Uchida, Torben Boll, Kohei Yatagai, Kazuya Oguri, Ryota Gemma, Yuto Shishido

Publikováno v: International Journal of Hydrogen Energy. 45:5264-5275

We report that CH4 production occurs, when LaNi-based alloy powders are mechanically ball-milled in a mixture CO2 and H2 gases for several hours. In Gas Chromatography (GC) analysis after the milling, the CO2 peak disappeared and the CH4 peak emerged

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d2d312c415e5b84834b7f106e35ae4cd
https://doi.org/10.1016/j.ijhydene.2019.07.055

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Role of surface oxide layers in the hydrogen embrittlement of austenitic stainless steels: A TOF-SIMS study

Autor: Mauro Martin, Haru-Hisa Uchida, Sebastian Weber, C. Izawa, Astrid Pundt, Martin Deutges, Richard Pargeter, Stefan Wagner, Thorsten Michler, Ryota Gemma

Publikováno v: Acta Materialia. 180:329-340

Hydrogen environment embrittlement (HEE) of low-nickel austenitic stainless steels (AISI 300 series) with different chemical compositions was studied focusing on the impact of the steels surface oxides, grain sizes and dislocation arrangements. The s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c2bb6611cbc334750cfca163a92894a6
https://doi.org/10.1016/j.actamat.2019.09.019

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Relationship between hydrogen embrittlement and Md30 temperature: Prediction of low-nickel austenitic stainless steel's resistance

Autor: Richard Pargeter, C. Izawa, Astrid Pundt, Haru-Hisa Uchida, Martin Deutges, Sebastian Weber, Mauro Martin, Thorsten Michler, Ryota Gemma, Stefan Wagner

Publikováno v: International Journal of Hydrogen Energy. 44:25064-25075

Hydrogen embrittlement (HE) of several low-nickel austenitic stainless steels (AISI 300 series) was studied with special attention to the impact of strain induced α′-martensite. The susceptibility of the steels to HE is judged with respect to the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2b34d9e47a12bd317ccf250a1410ac8
https://doi.org/10.1016/j.ijhydene.2019.07.179

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H2 reactivity on the surfaces of In and Sn at 298K

Autor: Rui Yamakawa, Shunsuke Kato, Hirohisa Uchida, Yoshihito Matsumura, Jan Petter Mæhlen, Masashi Sato, Yukinori Tani, Volodymyr A. Yartys, Haru-Hisa Uchida, Masahiro Terashima

Publikováno v: Applied Surface Science. 256:3321-3324

The reactivity of H2 gas with the In and Sn surfaces was quantitatively measured by a volumetric method at pressures ranging from 10−7 to 10−2 Pa at 298 K. Significant enhancement of H2 reactivity was observed when O2 or H2O preadsorbed on the su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0806f1a259899fa77b499054385f6b6
https://doi.org/10.1016/j.apsusc.2009.12.027

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