Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Kimio Wakoh"'
Autor:
Kimio Wakoh, Yunping Li, Shun Ito, Akihiko Chiba, Fenglin Wang, Yuichiro Koizumi, Kenta Yamanaka
Publikováno v:
Materials & Design, Vol 126, Iss, Pp 64-72 (2017)
In this work, Cu-based microcomposites were fabricated by powder metallurgy of gas-atomized Cu-15wt% Fe alloy powder, followed by drawing to various strains. The microstructure evolution and the resultant mechanical and electrical properties were inv
Autor:
Guoqiang Xie, Akihiko Chiba, Kimio Wakoh, Yuichiro Koizumi, Fenglin Wang, Yunping Li, Kenta Yamanaka
Publikováno v:
Materials Science and Engineering: A. 668:1-12
In this work, ultrafine-grained (UFG) copper alloys dispersed with nanoscale TiC particles were produced by combination of mechanical milling and spark plasma sintering (SPS). Microstructure evolution during uniaxial compression to height reduction o
Publikováno v:
MATERIALS TRANSACTIONS. 47:1926-1929
Wide Zr 55 Al 10 Ni 5 Cu 30 metallic glassy alloy sheets were successfully produced by a twin-roller casting method. The glassy alloy sheet of 12 mm in width, 0.19 mm in thickness and 650 mm in length has flat surfaces with highly white luster. The e
Publikováno v:
Journal of Metastable and Nanocrystalline Materials. :551-554
Autor:
Yoichiro Shimpo, Motonori Nishida, Kimio Wakoh, Osamu Kajita, Akihisa Inoue, Eiichiro Matsubara, Hisamichi Kimura, Shin-ichi Yamaura
Publikováno v:
Journal of Metastable and Nanocrystalline Materials. :315-318
Autor:
Masashi Hasegawa, Motonori Nishida, Shin-ichi Yamaura, Yoichiro Shimpo, Akihisa Inoue, Hisamichi Kimura, Masaki Sakurai, Kimio Wakoh, Eiichiro Matsubara
Publikováno v:
Acta Materialia. 53:3703-3711
Amorphous (Ni 0.6 Nb 0.4 ) 100− x Zr x ( x = 0, 20, 30, 40 and 50 at.%) alloys were prepared by the melt-spinning technique, and the hydrogen permeation through those alloy membranes was examined. The local atomic structure in these alloys was also
Publikováno v:
The European Physical Journal D. 16:329-332
Cluster-cluster coalescence process of monodispersed Co clusters with mean diameter d = 8.5 and 13 nm deposited a plasma-gas-condensation-type cluster beam deposition system was investigated by in situ electrical conductivity measurements and ex situ
Publikováno v:
Journal of Physics: Condensed Matter. 10:5619-5626
We studied the magnetization and magnetoresistance ratio (MR) of nonequilibrium Eu-rich Eu-TM (TM = Co, Mo) alloy thin films prepared by vapour-phase synthesis. We observed that the magnetization curves of the Eu-TM films show an irreversible kink at
Autor:
Kenji Sumiyama, Kenji Suzuki, Kimio Wakoh, H. Katoh, N. Ogawa, K Shoji, Toyohiko J. Konno, Hideya Onodera
Publikováno v:
Journal of Physics: Condensed Matter. 10:5627-5643
We synthesized nonequilibrium (x = 0-0.95) alloy thin films by co-evaporation and studied their structural, magnetic and transport properties using x-ray diffraction (XRD), Mossbauer spectroscopy, a SQUID and a DC four-probe method. The XRD and Mossb
Publikováno v:
Journal of the Physical Society of Japan. 67:599-603
Granular Fe x Cu 100- x films have been produced by a cluster beam (CB) technique. Small angle X-ray scattering (SAXS) measurements indicate that the geometrical size of Fe clusters is about 5 nm in diameter for x =13. Magnetization and magnetoresist