Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Yoshifumi Ikoma"'
Autor:
Kazutoshi Takahashi, Yuki Umeda, Masaki Imamura, Marina Takaira, Yoshifumi Ikoma, Yasutomo Arai
Publikováno v:
APL Materials, Vol 11, Iss 4, Pp 041114-041114-8 (2023)
The composition- and structure-dependent electronic band structure of SiGe alloys facilitates a rich variety of its application in various fields. In this study, we performed high-resolution core-level and angle-resolved photoemission spectroscopy (A
Externí odkaz:
https://doaj.org/article/ba73116ffcc74626908e60aaf09e6869
Autor:
Kaveh Edalati, Andrea Bachmaier, Victor A. Beloshenko, Yan Beygelzimer, Vladimir D. Blank, Walter J. Botta, Krzysztof Bryła, Jakub Čížek, Sergiy Divinski, Nariman A. Enikeev, Yuri Estrin, Ghader Faraji, Roberto B. Figueiredo, Masayoshi Fuji, Tadahiko Furuta, Thierry Grosdidier, Jenő Gubicza, Anton Hohenwarter, Zenji Horita, Jacques Huot, Yoshifumi Ikoma, Miloš Janeček, Megumi Kawasaki, Petr Král, Shigeru Kuramoto, Terence G. Langdon, Daniel R. Leiva, Valery I. Levitas, Andrey Mazilkin, Masaki Mito, Hiroyuki Miyamoto, Terukazu Nishizaki, Reinhard Pippan, Vladimir V. Popov, Elena N. Popova, Gencaga Purcek, Oliver Renk, Ádám Révész, Xavier Sauvage, Vaclav Sklenicka, Werner Skrotzki, Boris B. Straumal, Satyam Suwas, Laszlo S. Toth, Nobuhiro Tsuji, Ruslan Z. Valiev, Gerhard Wilde, Michael J. Zehetbauer, Xinkun Zhu
Publikováno v:
Materials Research Letters, Vol 10, Iss 4, Pp 163-256 (2022)
Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and nanostructured materials with large densities of lattice defects. This field, also known as NanoSPD, experienced a significant progress within the past two decades.
Externí odkaz:
https://doaj.org/article/82ba15537871424c844254efc42536dc
Autor:
Eunwook Jeong, Taehyeong Lee, Dooho Choi, Seung Min Yu, Sang-Geul Lee, Jong-Seong Bae, Seung Zeon Han, Gun-Hwan Lee, Yoshifumi Ikoma, Eun-Ae Choi, Jungheum Yun
Publikováno v:
ACS Applied Materials & Interfaces. 14:12797-12811
A vital objective in the wetting of Au deposited on chemically heterogeneous oxides is to synthesize a completely continuous, highly crystalline, ultrathin-layered geometry with minimized electrical and optical losses. However, no effective solution
Autor:
Yoshifumi Ikoma
Publikováno v:
MATERIALS TRANSACTIONS.
Autor:
Yoshifumi Ikoma
Publikováno v:
Materia Japan. 60:706-711
Autor:
Eunwook Jeong, Sang-Geul Lee, Seung Min Yu, Seung Zeon Han, Gun-Hwan Lee, Yoshifumi Ikoma, Eun-Ae Choi, Jungheum Yun
Publikováno v:
Applied Surface Science. 623:156998
Autor:
David J. Smith, Martha R. McCartney, Takahiro Masuda, Yoshinori Tange, Yoshifumi Ikoma, Terumasa Yamasaki, Zenji Horita, Yasuo Ohishi, Yuji Higo
Publikováno v:
Philosophical Magazine Letters. 101:223-231
In situ observation of a phase transformation during annealing of Si containing diamond-cubic (dc) and metastable phases has been performed using synchrotron X-ray diffraction. Metastable body-cent...
Publikováno v:
Powder Metallurgy. 64:134-141
To improve the yield strength of powder metallurgy steel, this work investigated the effect of a Cu-rich networked phase. Mixtures of 0.7% graphite and Fe–3% Cu hybrid-alloyed steel powders, compos...
Autor:
Yoshifumi Ikoma, Eun-Ae Choi, Gun-Hwan Lee, Eunwook Jeong, Seung Min Yu, Sang-Geul Lee, Seung Zeon Han, Jungheum Yun, Jong Seong Bae
Publikováno v:
Acta Materialia. 202:277-289
Structure engineering is essential for manipulating the chemical, electrical, and optical properties of Au. However, it is challenging to design nanoscopic structures because no effective method is available to deviate from the intrinsic evolution be
Autor:
Hadi Razavi-Khosroshahi, Yoshifumi Ikoma, Zenji Horita, Fernando A. Dittel-Meza, Jorge M. Cubero-Sesin, Dionisio Gutiérrez-Fallas, Jacqueline Hidalgo-Jimenez, Qing Wang, Kaveh Edalati, Juan Carlos Rodríguez-Rufino, Masayoshi Fuji
Publikováno v:
International Journal of Plasticity. 124:170-185
TiO2 and ZnO, two semiconductors with promising optical properties, are considered as potential candidates for solar and photocatalytic applications. Although chemical methods have been primarily used to enhance the optical properties of these oxides