Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Katsutoshi Aoki"'
Autor:
Akihiko Machida, Hiroyuki Saitoh, Takanori Hattori, Asami Sano-Furukawa, Ken-ichi Funakoshi, Toyoto Sato, Shin-ichi Orimo, Katsutoshi Aoki
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Abstract Hexagonal close-packed iron hydride, hcp FeH x , is absent from the conventional phase diagram of the Fe–H system, although hcp metallic Fe exists stably over extensive temperature (T) and pressure (P) conditions, including those correspon
Externí odkaz:
https://doaj.org/article/461cfa469d674d3f8fb5482e9774581d
Publikováno v:
Energies, Vol 8, Iss 6, Pp 5459-5466 (2015)
The dehydriding process and hydrogen–deuterium exchange (H–D exchange) of xLiBH4 + (1 − x)Mg2FeD6 (x = 0.25, 0.75) composites has been studied in detail. For the composition with x = 0.25, only one overlapping mass peak of all hydrogen and deut
Externí odkaz:
https://doaj.org/article/0ca6bb067bc7492791fc3efff99e4700
Autor:
Hiroyuki Saitoh, Shigeyuki Takagi, Motoaki Matsuo, Yuki Iijima, Naruki Endo, Katsutoshi Aoki, Shin-ichi Orimo
Publikováno v:
APL Materials, Vol 2, Iss 7, Pp 076103-076103-7 (2014)
Li4FeH6, which has the highest gravimetric hydrogen density of iron-containing complex hydrides reported so far, is synthesized by hydrogenation of a powder mixture of iron and LiH above 6.1 GPa at 900 °C. In situ synchrotron radiation X-ray diffrac
Externí odkaz:
https://doaj.org/article/1d2628db13a74f6cbc275ec1aa9b4302
Synthesis and formation process of Al2CuHx: A new class of interstitial aluminum-based alloy hydride
Autor:
Hiroyuki Saitoh, Shigeyuki Takagi, Naruki Endo, Akihiko Machida, Katsutoshi Aoki, Shin-ichi Orimo, Yoshinori Katayama
Publikováno v:
APL Materials, Vol 1, Iss 3, Pp 032113-032113 (2013)
Aluminum-based alloy hydride Al2CuHx (x ∼ 1) is synthesized by hydrogenating Al2Cu alloy using high-temperature and high-pressure hydrogen atmosphere. Al8Cu square antiprisms in Al2Cu twist around the c axis of a tetragonal unit cell by hydrogenati
Externí odkaz:
https://doaj.org/article/9a41cd3eb1704ba1bb2c78997787ea62
Autor:
Chikara Shito, Hiroyuki Kagi, Sho Kakizawa, Katsutoshi Aoki, Kazuki Komatsu, Riko Iizuka-Oku, Jun Abe, Hirioyuki Saitoh, Asami Sano-Furukawa, Takanori Hattori
Publikováno v:
American Mineralogist. 108:659-666
The density of the Earth’s core is several percent lower than that of iron-nickel alloy under conditions of pressure and temperature equivalent to the Earth’s core. Hydrogen is one of the most promising constituents accounting for the density def
Autor:
Yuichiro, Mori, Hiroyuki, Kagi, Sho, Kakizawa, Kazuki, Komatsu, Chikara, Shito, Iizuka-Oku, Riko, Katsutoshi, Aoki, Takanori, Hattori, Sano-Furukawa, Asami, Funakoshi, Ken-ichi, Hiroyuki, Saitoh, Hiroyuki, Saito
Publikováno v:
Journal of Mineralogical and Petrological Sciences. 116(6):309-313
地球の核の主要成分であるFeには軽金属が固溶していると考えられている。本研究ではそのモデル物質としてFe0.95Si0.05合金の水素化物について、水素吸蔵サイトと水素誘起格子体積膨張
Autor:
Yuichiro MORI, Hiroyuki KAGI, Sho KAKIZAWA, Kazuki KOMATSU, Chikara SHITO, Riko IIZUKA–OKU, Katsutoshi AOKI, Takanori HATTORI, Asami SANO–FURUKAWA, Ken–ichi FUNAKOSHI, Hirouyki SAITOH
Publikováno v:
Journal of Mineralogical and Petrological Sciences. 116:309-313
Autor:
Katsutoshi Aoki, Shin Ichi Orimo, Akihiko Machida, Riko Iizuka-Oku, Hiroyuki Saitoh, Ken-ichi Funakoshi, Asami Sano-Furukawa, Toyoto Sato, Takanori Hattori
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
Scientific Reports
Scientific Reports
Neutron powder diffraction profiles were collected for iron deuteride (FeDx) while the temperature decreased from 1023 to 300 K for a pressure range of 4–6 gigapascal (GPa). The ε′ deuteride with a double hexagonal close-packed (dhcp) structure,
Publikováno v:
Solid State Communications. 340:114542
At high temperatures and high pressures, iron reacts with hydrogen to form hydrides. Three hydride phases are present at moderate temperature and pressure ranges below 2000 K and 20 GPa: α, γ, and e′ phases, respectively, with bcc, fcc, and doubl
Autor:
Tomoya Tsuboi, Tadanori Yoshimura, Hiroki Sawada, George Hirai, Akihiro Onoue, Akira Takenaka, Katsutoshi Aoki
Publikováno v:
NIP & Digital Fabrication Conference. 33:156-159