K
Kazuhiro Yamada
Researcher at Kyushu University
Publications - 63
Citations - 939
Kazuhiro Yamada is an academic researcher from Kyushu University. The author has contributed to research in topics: Transmission electron microscopy & Elastic modulus. The author has an hindex of 17, co-authored 63 publications receiving 820 citations.
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Journal ArticleDOI
Formation of M23C6-type precipitates and chromium-depleted zones in austenite stainless steel
Kenji Kaneko,Tatsuya Fukunaga,Kazuhiro Yamada,Nobuo Nakada,Masao Kikuchi,Zineb Saghi,J.S. Barnard,Paul A. Midgley +7 more
TL;DR: In this paper, the formation of M23C6 carbides and chromium-depleted zones in 304L stainless steel was investigated by in situ transmission electron microscopy and analytical TEM.
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Critical Current Density Enhancement around a Matching Field in ErBa2Cu3O7-δ Films with BaZrO3 Nano-Rods
Masashi Mukaida,T. Horide,Ryusuke Kita,Shigeru Horii,Ataru Ichinose,Yutaka Yoshida,Osuke Miura,Kaname Matsumoto,Kazuhiro Yamada,Nobuyuki Mori +9 more
TL;DR: In this paper, the magnetic field where the enhancement is observed coincides with the matching field calculated from the density of BaZrO3 nano-rods, and the largest enhancement was observed in B ∥c-axis of ErBa2Cu3O7-δ films.
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Volume Grating Induced by a Self-Trapped Long Filament of Femtosecond Laser Pulses in Silica Glass
TL;DR: In this paper, a self-trapped filament of ultrashort laser pulses can induce a 10-500 µm-long region of refractive-index change in silica glass.
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Fabrication of Antireflective Subwavelength Structure on Spherical Glass Surface Using Imprinting Process
Takamasa Tamura,Makoto Umetani,Kazuhiro Yamada,Yasuhiro Tanaka,Kenji Kintaka,Haruya Kasa,Junji Nishii +6 more
TL;DR: In this article, an antireflective structure (ARS) on a convex spherical glass surface was fabricated using an imprinting process using an inverted pattern of the ARS with a 250-nm period.
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Theoretical Analysis of Elastic Modulus and Dielectric Constant for Low-k Two-Dimensional Periodic Porous Silica Films
Hidenori Miyoshi,Hisanori Matsuo,Yoshiaki Oku,Hirofumi Tanaka,Kazuhiro Yamada,Noboru Mikami,Syozo Takada,Nobuhiro Hata,Takamaro Kikkawa,Takamaro Kikkawa +9 more
TL;DR: In this article, the influence of pore arrangement on the elastic modulus and dielectric constant k of interlayer-dielectric films with two-dimensional pore structures while maintaining their mechanical strength was investigated.