JOPSS - Search Results

Journal Articles

Probing deformation behavior of a refractory high-entropy alloy using neutron diffraction

Zhou, Y.*; Song, W.*; Zhang, F.*; Wu, Y.*; Lei, Z.*; Jiao, M.*; Zhang, X.*; Dong, J.*; Zhang, Y.*; Yang, M.*; et al.

Journal of Alloys and Compounds, 971, p.172635_1 - 172635_7, 2024/01

https://doi.org/10.1016/j.jallcom.2023.172635

Times Cited Count：0 Percentile：0(Chemistry, Physical)

Journal Articles

observation of deformation behavior in high entropy alloys using neutron diffraction

Harjo, S.

Nihon Kessho Gakkai-Shi, 65(3), p.178 - 182, 2023/08

https://doi.org/10.5940/jcrsj.65.178

Journal Articles

High-density nanoprecipitates and phase reversion via maraging enable ultrastrong yet strain-hardenable medium-entropy alloy

Kwon, H.*; Sathiyamoorthi, P.*; Gangaraju, M. K.*; Zargaran, A.*; Wang, J.*; Heo, Y.-U.*; Harjo, S.; Gong, W.; Lee, B.-J.*; Kim, H. S.*

Acta Materialia, 248, p.118810_1 - 118810_12, 2023/04

https://doi.org/10.1016/j.actamat.2023.118810

Times Cited Count：13 Percentile：99.28(Materials Science, Multidisciplinary)

Journal Articles

Tensile overload-induced texture effects on the fatigue resistance of a CoCrFeMnNi high-entropy alloy

Lam, T.-N.*; Chin, H.-H.*; Zhang, X.*; Feng, R.*; Wang, H.*; Chiang, C.-Y.*; Lee, S. Y.*; Kawasaki, Takuro; Harjo, S.; Liaw, P. K.*; et al.

Acta Materialia, 245, p.118585_1 - 118585_9, 2023/02

https://doi.org/10.1016/j.actamat.2022.118585

Times Cited Count：8 Percentile：80.32(Materials Science, Multidisciplinary)

Journal Articles

Work hardening behavior of hot-rolled metastable Fe $_{50}$ Co $_{25}$ Ni $_{10}$ Al $_{5}$ Ti $_{5}$ Mo $_{5}$ medium-entropy alloy; In situ neutron diffraction analysis

Kwon, H.*; Harjo, S.; Kawasaki, Takuro; Gong, W.; Jeong, S. G.*; Kim, E. S.*; Sathiyamoorthi, P.*; Kato, Hidemi*; Kim, H. S.*

Science and Technology of Advanced Materials, 23(1), p.579 - 586, 2022/00

https://doi.org/10.1080/14686996.2022.2122868

Times Cited Count：6 Percentile：66.14(Materials Science, Multidisciplinary)

Journal Articles

Cooperative deformation in high-entropy alloys at ultralow temperatures

Naeem, M.*; He, H.*; Zhang, F.*; Huang, H.*; Harjo, S.; Kawasaki, Takuro; Wang, B.*; Lan, S.*; Wu, Z.*; Wang, F.*; et al.

Science Advances (Internet), 6(13), p.eaax4002_1 - eaax4002_8, 2020/03

https://doi.org/10.1126/sciadv.aax4002

Times Cited Count：145 Percentile：99.09(Multidisciplinary Sciences)

Journal Articles

neutron diffraction study of phase stress evolution in a ferrous medium-entropy alloy under low-temperature tensile loading

Bae, J. W.*; Kim, J. G.*; Park, J. M.*; Woo, W.*; Harjo, S.; Kim, H. S.*

Scripta Materialia, 165, p.60 - 63, 2019/05

https://doi.org/10.1016/j.scriptamat.2019.02.027

Times Cited Count：24 Percentile：79.52(Nanoscience & Nanotechnology)

Journal Articles

Crystal structure and electron density distribution analyses of Nd $_{x}$ Ce $_{1-x}$ O $_{2-delta}$ for electrolyte by Rietveld/ maximum entropy method

Taguchi, Tomitsugu; Igawa, Naoki; Birumachi, Atsushi; Asaoka, Hidehito; Miwa, Shuhei; Osaka, Masahiko

e-Journal of Surface Science and Nanotechnology (Internet), 13, p.339 - 342, 2015/06

https://doi.org/10.1380/ejssnt.2015.339

Rare-earth doped ceria exhibits both ionic and electronic conductions, and those ceria with higher ratio of ionic conduction against electronic conduction is used as a solid electrolyte for solid oxide fuel cells. The electron density distributions in crystals are closely related to the electron diffusing pathway which affects the electronic conduction. In this study, we investigated the electron density distribution of doped ceria as a function of the content of Nd $_{2}$ O $_{3}$ -dopant to deduce the ratio of the electronic to ionic conduction. The crystal structure was refined with the space group, -3, which is the same as undoped ceria. Ce and Nd ions randomly occupied the 4 site and O ion the 8 site. The electron conduction pathway was distributed through the 4-8 and 8-8 sites. The relationship between crystal structural change and electron density distribution as a function of the content of Nd $_{2}$ O $_{3}$ dopant will be discussed.

JAEA Reports

Evaluation of thermal efficiency to produce hydrogen through the IS process by thermodynamics

Nomura, Mikihiro; Kasahara, Seiji; Onuki, Kaoru

JAERI-Research 2002-039, 24 Pages, 2003/01

JAERI-Research-2002-039.pdf:1.01MB

Thermal efficiency to produce hydrogen from water through the IS process was evaluated by a viewpoint of thermodynamics. Thermal efficiency is decided by a temperature from a heat source and limited by the works calculated by the Carnot efficiency for any hydrogen production methods. The maximum thermal efficiency is 81.3% for a thermal cycle between 1123K and 733K. The thermal efficiency of the IS process was evaluated by G-T diagrams of each reactions and separation processes. The maximum value is 78.2% without considering the works for separations of acids from water. However, the effects of the works for separations on thermal efficiency are essential for the IS process, because Gibbs energies of separations of acids from water are always positive. The thermal efficiency could be changed from 53.5% to 76.6% by the calculation with or without the separation processes.

Journal Articles

Oxygen potential and defect structure of the solid solution, Mg-Gd-UO $_{2}$

Fujino, Takeo*; Sato, Nobuaki*; Yamada, Kota*; Okazaki, Manabu*; Fukuda, Kosaku; Serizawa, Hiroyuki; Shiratori, Tetsuo*

Journal of Nuclear Materials, 289(3), p.270 - 280, 2001/03

https://doi.org/10.1016/S0022-3115(01)00427-5

Times Cited Count：2 Percentile：19.66(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Thermodynamic study of UO $_{2}$ $_{+}$ $_{x}$ by solid state EMF technique

Nakamura, Akio; Fujino, Takeo

Journal of Nuclear Materials, 149(1), p.80 - 100, 1987/01

https://doi.org/10.1016/0022-3115(87)90501-0

Times Cited Count：44 Percentile：95.53(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Thermodynamic analysis on point defects of UO $_{2}$ $_{+}$ $_{x}$ at relatively small deviation from stoichiometry between 600 and 1400 $^{circ}$ C

Nakamura, Akio; Fujino, Takeo

Journal of Nuclear Materials, 140, p.113 - 130, 1986/09

https://doi.org/10.1016/0022-3115(86)90239-4

Times Cited Count：17 Percentile：83.75(Materials Science, Multidisciplinary)

no abstracts in English

JAEA Reports

Identification of AR Model Based on Burg Algorithm and Its Application to Diagnosis of Nuclear Reactor

;

JAERI-M 82-009, 43 Pages, 1982/03

JAERI-M-82-009.pdf:1.12MB

no abstracts in English

Journal Articles

Ergodic behavior of magnetic field lines in a poloidal divertor tokamak

Yoshida, H.; ;

Japanese Journal of Applied Physics, 21(7), p.1068 - 1074, 1982/00

https://doi.org/10.1143/JJAP.21.1068

Times Cited Count：1 Percentile：12.41(Physics, Applied)

no abstracts in English

Oral presentation

Three wave coupling in gyrokinetic multi-scale interaction

Maeyama, Shinya*; Watanabe, Tomohiko*; Idomura, Yasuhiro; Nakata, Motoki*; Ishizawa, Akihiro*; Nunami, Masanori*

no journal, ,

In order to analyze multi-scale interactions in fine scale gyrokinetic simulations covering both ion and electron scales, we develop a fluid moment based analysis method for three wave coupling. In analyzing three wave coupling of gyrokinetic equations, one needs to keep interactions of five dimensional (5D) distribution functions. However, it is prohibitive to store such massive data. In this talk, we propose an approximate analysis method based on 3D fluid moments, which are reduced by integrating 5D distribution functions over velocity space, and discuss its accuracy. By applying this method, we found a new damping mechanism of ion scale zonal flows due to electron scale turbulence.

Oral presentation

Anisotropy and magnetic entropy of UTe $_{2}$

Opletal, P.; Sakai, Hironori; Haga, Yoshinori; Yamamoto, Etsuji; Kambe, Shinsaku; Tokunaga, Yo; Tokiwa, Yoshifumi

no journal, ,

Oral presentation

Magnetic entropy of UTe $_{2}$

Opletal, P.; Sakai, Hironori; Haga, Yoshinori; Yamamoto, Etsuji; Kambe, Shinsaku; Tokunaga, Yo; Tokiwa, Yoshifumi

no journal, ,

Oral presentation

In situ neutron diffraction during low-temperature deformation of high-entropy alloys

Harjo, S.; Gong, W.; Kawasaki, Takuro; Naeem, M.*; He, H.*; Wang, X.-L.*

no journal, ,

no abstracts in English

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Probing deformation behavior of a refractory high-entropy alloy using neutron diffraction

observation of deformation behavior in high entropy alloys using neutron diffraction

High-density nanoprecipitates and phase reversion via maraging enable ultrastrong yet strain-hardenable medium-entropy alloy

Tensile overload-induced texture effects on the fatigue resistance of a CoCrFeMnNi high-entropy alloy

Work hardening behavior of hot-rolled metastable Fe $_{50}$ Co $_{25}$ Ni $_{10}$ Al $_{5}$ Ti $_{5}$ Mo $_{5}$ medium-entropy alloy; In situ neutron diffraction analysis

Cooperative deformation in high-entropy alloys at ultralow temperatures

neutron diffraction study of phase stress evolution in a ferrous medium-entropy alloy under low-temperature tensile loading

Crystal structure and electron density distribution analyses of Nd $_{x}$ Ce $_{1-x}$ O $_{2-delta}$ for electrolyte by Rietveld/ maximum entropy method

Evaluation of thermal efficiency to produce hydrogen through the IS process by thermodynamics

Oxygen potential and defect structure of the solid solution, Mg-Gd-UO $_{2}$

Thermodynamic study of UO $_{2}$ $_{+}$ $_{x}$ by solid state EMF technique

Thermodynamic analysis on point defects of UO $_{2}$ $_{+}$ $_{x}$ at relatively small deviation from stoichiometry between 600 and 1400 $^{circ}$ C

Identification of AR Model Based on Burg Algorithm and Its Application to Diagnosis of Nuclear Reactor

Ergodic behavior of magnetic field lines in a poloidal divertor tokamak

Three wave coupling in gyrokinetic multi-scale interaction

Anisotropy and magnetic entropy of UTe $_{2}$

Magnetic entropy of UTe $_{2}$

In situ neutron diffraction during low-temperature deformation of high-entropy alloys