Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Eisuke SENTOKU"'
Autor:
Ping-Hsien Chou, Keiji Yamada, Yean-Ren Hwang, Eisuke Sentoku, Ryutaro Tanaka, Katsuhiko Sekiya
Publikováno v:
Journal of Laser Micro / Nanoengineering; Sep2024, Vol. 19 Issue 2, p155-169, 15p
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 17, Iss 1, Pp JAMDSM0006-JAMDSM0006 (2023)
Bending angle obtained in laser forming process is much smaller than that in conventional die pressing or roller bending processes. Therefore, multi-stage forming is necessary to form deep drawn shapes and/or complex shapes by laser forming. However,
Externí odkaz:
https://doaj.org/article/f2c21d5adfe34ad7a9097a084f5e10f3
Publikováno v:
Tribology Online, Vol 12, Iss 2, Pp 49-57 (2017)
In this study, the potential of a Micro Slurry-jet Erosion (MSE) test to swiftly evaluate the intrinsic surface strength properties of thin multi-layer coatings is demonstrated. A slurry containing 1.2 μm alumina particles was impacted at high veloc
Externí odkaz:
https://doaj.org/article/96368cae9a1447d3a9bc770689678db7
Publikováno v:
Tribology Online, Vol 3, Iss 1, Pp 19-24 (2008)
A three dimensional non-contact surface profilometer system which can measure a wide area (order of square milli-meters) with high resolution (sub micro meter) has been completed. This system can measure the surface topography in the atmosphere by me
Externí odkaz:
https://doaj.org/article/a7eaba80885b44fbacab6de96bfc6f1e
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 817, Pp SMM0250-SMM0250 (2014)
Recently it was reported that a periodic nanostructure was formed by femtosecond pulse laser (λ = 800 nm, fr = 1 kHz) irradiation at the fluence slightly above the ablation threshold over the surface of diamond-like carbon (DLC) films. Our previous
Externí odkaz:
https://doaj.org/article/e653cea2e67e4b0a8262c4c37457182c
Publikováno v:
Applied Mechanics and Materials. 876:3-8
The microstructure, hardness, and sliding wear properties of high-pressure torsion (HPT)-processed pure Fe and S45C carbon steel were comprehensively investigated. The grains of Fe and S45C were significantly refined to the submicron size range using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e9f5e4724b71ad2e22309a0eaf49de2
https://doi.org/10.4028/www.scientific.net/amm.876.3
https://doi.org/10.4028/www.scientific.net/amm.876.3
Publikováno v:
Applied Surface Science. 405:267-272
Two types of laser-induced periodic surface structures (LIPSS) formed on titanium by femtosecond (fs) laser pulses (λ = 800 nm, τ = 180 fs, ν = 1 kHz) in air were investigated experimentally. At a laser fluence F above the ablation threshold, LIPS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9940ce2296b45b411c3d6fc265c1fc86
https://doi.org/10.1016/j.apsusc.2017.02.084
https://doi.org/10.1016/j.apsusc.2017.02.084
Publikováno v:
Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21. :048-032
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3980887f7ccf364b873e9d0772622d3d
https://doi.org/10.1299/jsmelem.2021.10.048-032
https://doi.org/10.1299/jsmelem.2021.10.048-032
Publikováno v:
Surface and Coatings Technology. 291:172-178
Several experimental techniques are ordinarily used to evaluate the strength properties of metal nitride coatings used for cutting tools and molds. However, for gradient coatings, in which the chemical composition changes gradually in the normal dire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ab2acaa247a0d574b281098a38ac7e1
https://doi.org/10.1016/j.surfcoat.2016.02.037
https://doi.org/10.1016/j.surfcoat.2016.02.037
Autor:
Eisuke Sentoku, Hirofumi Takikawa, Toru Harigai, Haruka Kasashima, Hisato Funabora, Ryoya Tominaga, Naoki Yasumaru
Publikováno v:
Diamond and Related Materials. 109:108046
Two types of diamond-like carbon (DLC) thin films, hydrogenated amorphous carbon (a-C:H) and super-hard tetrahedral amorphous carbon (ta-C), were irradiated with femtosecond laser pulses, and the corrosion resistance of the DLC films with laser-induc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c99bd774d52a78d8f6a51edf8906c2c
https://doi.org/10.1016/j.diamond.2020.108046
https://doi.org/10.1016/j.diamond.2020.108046