Search Results - "Nishiyama, Nobuyuki"

Industrialization of nanocrystalline Fe–Si–B–P–Cu alloys for high magnetic flux density cores by Takenaka, Kana, Setyawan, Albertus D., Sharma, Parmanand, Nishiyama, Nobuyuki, Makino, Akihiro

“…Nanocrystalline Fe–Si–B–P–Cu alloys exhibit high saturation magnetic flux density (Bs) and extremely low magnetic core loss (W), simultaneously. Low…”
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Excess free volume in metallic glasses measured by X-ray diffraction by Yavari, Alain Reza, Moulec, Alain Le, Inoue, Akihisa, Nishiyama, Nobuyuki, Lupu, Nicoleta, Matsubara, Eiichiro, Botta, Walter José, Vaughan, Gavin, Michiel, Marco Di, Kvick, Åke

“…In crystalline materials, lattice expansion as measured by diffraction methods differs from the expansion of the sample dimensions as measured by dilatometry,…”
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Novel applications of bulk metallic glass for industrial products by Nishiyama, Nobuyuki, Amiya, Kenji, Inoue, Akihisa

“…The possibility of applying metallic glass parts in industrial products is investigated. Ti-based glassy tubes have been applied to a Coriolis mass flowmeter,…”
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Production of Nanocrystalline (Fe, Co)-Si-B-P-Cu Alloy with Excellent Soft Magnetic Properties for Commercial Applications by Takenaka, Kana, Setyawan, Albertus D., Zhang, Yan, Sharma, Parmanand, Nishiyama, Nobuyuki, Makino, Akihiro

“…With the aim of applying to a magnetic core material, the effect of ribbon thickness on the magnetic properties of a (Fe, Co)-Si-B-P-Cu alloy ribbon was…”
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Mechanical properties of a Ni60Pd20P17B3 bulk glassy alloy at cryogenic temperatures by KAWASHIMA, Asahi, YUQIAO ZENG, FUKUHARA, Mikio, KURISHITA, Hiroaki, NISHIYAMA, Nobuyuki, MIKI, Hiroyuki, INOUE, Akihisa

“…Little is known about mechanical properties of bulk glassy alloys (BGAs) at cryogenic temperatures. In this study, we investigated the effects of temperature…”
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Wear resistivity of super-precision microgear made of Ni-based metallic glass by Ishida, Mamoru, Takeda, Hideki, Nishiyama, Nobuyuki, Kita, Kazuhiko, Shimizu, Yukiharu, Saotome, Yasunori, Inoue, Akihisa

“…A microgeared motor with a diameter of 2.4 mm was constructed using a Ni-based (Ni 53Nb 20Ti 10Zr 8Co 6Cu 3, numbers indicate at.%) metallic glass (MG). The…”
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Remarkable effect of minor boron doping on the formation of the largest size Ni-rich bulk metallic glasses by Zeng, Yuqiao, Inoue, Akihisa, Nishiyama, Nobuyuki, Chen, Mingwei

“…We report the formation of a Ni-rich bulk metallic glass with a diameter of 15 mm, the largest size known in Ni-rich alloys. It was found that the minor…”
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Nanocrystallization of complex Fe23B6-type structure in glassy Fe–Co–B–Si–Nb alloy by Hirata, Akihiko, Hirotsu, Yoshihiko, Amiya, Kenji, Nishiyama, Nobuyuki, Inoue, Akihisa

“…Local structural development in the bulk metallic glass (Fe0.5Co0.5)72B20Si4Nb4 on annealing has been investigated using transmission electron microscopy…”
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Thermal stability, mechanical properties and nano-imprint ability of Pd-Cu-Ni-P glassy alloy thin film by Takenaka, Kana, Togashi, Nozomu, Nishiyama, Nobuyuki, Inoue, Akihisa

“…With the aim of preparing nano-scale pattern for micro-machines and nano-devices, fabrication and imprint ability of Pd 39Cu 29Ni 13P 19 glassy alloy thin film…”
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Cutting Characteristics of Bulk Metallic Glass by Fujita, Kazutaka, Morishita, Yasuo, Nishiyama, Nobuyuki, Kimura, Hisamichi, Inoue, Akihisa

“…The establishment of appropriate machining techniques for bulk metallic glasses (BMGs), which exhibit excellent mechanical, physical and chemical properties,…”
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Supercooling investigation and critical cooling rate for glass formation in Pd–Cu–Ni–P alloy by Nishiyama, Nobuyuki, Inoue, Akihisa

“…Based on the previous results of undercooling investigation, the critical cooling rate for glass formation ( R c) and crystallization behavior of the Pd 40Cu…”
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Read/write characteristics of a new type of bit-patterned-media using nano-patterned glassy alloy by Takenaka, Kana, Saidoh, Noriko, Nishiyama, Nobuyuki, Ishimaru, Manabu, Futamoto, Masaaki, Inoue, Akihisa

“…The paper reports a feasibility study of new type bit-patterned-media using a nano-patterned glassy alloy template for ultra-high density hard disk…”
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Structure, mechanical properties and imprint-ability of Pd–Cu–Ni–P glassy alloy thin film prepared by a pulsed-laser deposition method by Takenaka, Kana, Togashi, Nozomu, Nishiyama, Nobuyuki, Inoue, Akihisa

“…With the aim of preparing nano-hole array for bit patterned media of ultra high density data storage, fabrication and imprint-ability of Pd–Cu–Ni–P glassy…”
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Surface and cross sectional nano-structure of prototype BPM prepared using imprinted glassy alloy thin film by Saidoh, Noriko, Takenaka, Kana, Nishiyama, Nobuyuki, Ishimaru, Manabu, Inoue, Akihisa

“…In order to clarify detailed surface morphologies and cross sectional nano-structures of novel prototype bit-patterned-medias using nano-imprinted glassy alloy…”
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Ni-Rich Bulk Metallic Glasses with High Glass-Forming Ability and Good Metallic Properties by Zeng, Yuqiao, Nishiyama, Nobuyuki, Yamamoto, Tokujiro, Inoue, Akihisa

“…Glass-forming ability, thermal behavior and mechanical properties of Ni80−xPdxP20 (10at%≤x≤35at%) glassy alloys have been investigated. The alloys with Pd…”
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Fe-B-Si-Nb Bulk Metallic Glasses with High Strength above 4000 MPa and Distinct Plastic Elongation by Amiya, Kenji, Urata, Akiri, Nishiyama, Nobuyuki, Inoue, Akihisa

“…The glass-forming ability and mechanical properties of Fe-B-Si-Nb glassy alloys have been investigated. The Fe72B20Si4Nb4 glassy alloy was prepared in a…”
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Continuous casting of thick Fe-base glassy plates by twin-roller melt-spinning by Urata, Akiri, Nishiyama, Nobuyuki, Amiya, Kenji, Inoue, Akihisa

“…A glassy Fe-base alloy plate with a composition of Fe 36Co 36B 20Si 4Nb 4 (at.%) was prepared by a twin-roller continuous casting method. The alloy plate had a…”
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Thermal stability and magnetic properties of (Fe, Co)–Ga–(P, C, B, Si) bulk glassy alloys by Amiya, Kenji, Urata, Akiri, Nishiyama, Nobuyuki, Inoue, Akihisa

“…The replacement effect of Co for Fe on the glass-forming ability (GFA) and magnetic properties in the (Fe, Co)–Ga–(P, C, B, Si) systems were investigated. The…”
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Development of Ni-Pd-P-B Bulk Metallic Glasses with High Glass-Forming Ability by Yuqiao, Zeng, Nishiyama, Nobuyuki, Inoue, Akihisa

“…A small amount of boron was added to Ni60Pd20P20 and Ni65Pd15P20 alloys. The alloys containing 3 at% boron showed improved thermal stability and glass-forming…”
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Effects of loading rates, notch root radius and specimen thickness on fracture toughness in bulk metallic glasses by Fujita, Kazutaka, Okamoto, Akinori, Nishiyama, Nobuyuki, Yokoyama, Yoshihiko, Kimura, Hisamichi, Inoue, Akihisa

“…The fracture toughness ( K Q) tests were carried out in order to study the effect of loading rate ( K ˙ ), notch root radius ( R) and specimen thickness ( B)…”
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