Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Masataka Nosaka"'
Autor:
Masataka Nosaka, Yushi Morisaki, Tomoaki Fujiwara, Hideaki Tokai, Masahiro Kawaguchi, Takahisa Kato
Publikováno v:
Tribology Online, Vol 12, Iss 5, Pp 274-280 (2017)
It was shown in previous reports by authors that friction coefficients of the level of 0.0001 were achieved when ZrO2 (Y-PSZ: yttria partially stabilized zirconia) pins were slid against diamond-like carbon (DLC) films in H2-gas environment under hea
Externí odkaz:
https://doaj.org/article/17e67232841c464aa78777fe07b9b2bc
Autor:
Xinchun Chen, Chenhui Zhang, Takahisa Kato, Xin-an Yang, Sudong Wu, Rong Wang, Masataka Nosaka, Jianbin Luo
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-13 (2017)
Hydrogenated amorphous carbon is a promising solid lubricant, but the underlying mechanisms surrounding its superlubricity remain unclear. Here the authors reveal that the attainment of a superlubricious state is dependent on the in-situin-situ forma
Externí odkaz:
https://doaj.org/article/612c049d118542efb4b135b6f8acacf0
Autor:
Masataka Nosaka
Publikováno v:
Tribology Online, Vol 6, Iss 2, Pp 133-141 (2011)
Liquid hydrogen (LH2) is excellent in extensive storage and transportation systems, such as being used as fuel in highly efficient liquid-rocket engines. To consider the use of LH2 required for future hydrogen-energy systems, this paper presents a to
Externí odkaz:
https://doaj.org/article/6571aad8df4a4b80ab2acabcebcc2d77
Autor:
Masataka Nosaka, Satoshi Takada, Makoto Yoshida, Masataka Kikuchi, Takayuki Sudo, Shohei Nakamura
Publikováno v:
Tribology Online, Vol 5, Iss 2, Pp 71-79 (2010)
When radial load applied to the bearings was high, ball excursion occurring in the retainer ball-pockets became large due to ball-speed-variation (BSV). Such BSV was also caused by inclination of the outer race to the shaft (tilted misalignment). If
Externí odkaz:
https://doaj.org/article/bdb6f04e715e4d4c9e7fd7103d43cc21
Autor:
Masataka Nosaka, Satoshi Takada, Makoto Yoshida, Masataka Kikuchi, Takayuki Sudo, Shohei Nakamura
Publikováno v:
Tribology Online, Vol 5, Iss 1, Pp 60-70 (2010)
The durability of a hybrid ceramic 25-mm-bore ball bearing having a single outer land-guided retainer was evaluated and improved in liquid hydrogen at speeds up to 120,000 rpm (120,000 min-1) (3 million DN) by comparing the propagation of superficial
Externí odkaz:
https://doaj.org/article/1c5118125fa74da89a8231a6d5a0ff69
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 233:532-540
In this article, firstly the experiments previously reported have been reviewed. That is, in the experiments conducted earlier it was seen that the friction coefficient reduced to the friction-tester noise-level of 0.0001, and only a small amount of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66045d65b5a49c7dc84a9fb8ac377cda
https://doi.org/10.1177/1350650117746025
https://doi.org/10.1177/1350650117746025
Autor:
Masahiro Kawaguchi, Yushi Morisaki, Tomoaki Fujiwara, Masataka Nosaka, Takahisa Kato, Hideaki Tokai
Publikováno v:
Tribology Online, Vol 12, Iss 5, Pp 274-280 (2017)
It was shown in previous reports by authors that friction coefficients of the level of 0.0001 were achieved when ZrO2 (Y-PSZ: yttria partially stabilized zirconia) pins were slid against diamond-like carbon (DLC) films in H2-gas environment under hea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef2d8cc4ac5f45564dbeca0896edd1b1
https://www.jstage.jst.go.jp/article/trol/12/5/12_274/_pdf/-char/en
https://www.jstage.jst.go.jp/article/trol/12/5/12_274/_pdf/-char/en
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 230:1389-1397
Friction tests using ZrO2 (Y-PSZ: yttria partially stabilized zirconia) pin slid against polymer-like carbon film of bilayer and multilayer structures under H2 gas environment are conducted. It will be shown that friction coefficients of the level of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fce21a6bca8e86c927dbd881d2130217
https://doi.org/10.1177/1350650116636797
https://doi.org/10.1177/1350650116636797
Autor:
Takahisa Kato, Jianbin Luo, Sudong Wu, Xinchun Chen, Rong Wang, Xin-an Yang, Chenhui Zhang, Masataka Nosaka
Publikováno v:
Nature Communications
Nature Communications, Vol 8, Iss 1, Pp 1-13 (2017)
Nature Communications, Vol 8, Iss 1, Pp 1-13 (2017)
Hydrogenated amorphous carbon (a-C:H) is capable of providing a near-frictionless lubrication state when rubbed in dry sliding contacts. Nevertheless, the mechanisms governing superlubricity in a-C:H are still not well comprehended, mainly due to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b23ffe8fbb6edecf3b9e76aaed28801a
http://europepmc.org/articles/PMC5698435
http://europepmc.org/articles/PMC5698435
Autor:
Satoshi Takada, Shohei Nakamura, Masataka Kikuchi, Masataka Nosaka, Makoto Yoshida, Takayuki Sudo
Publikováno v:
Tribology Online, Vol 5, Iss 1, Pp 60-70 (2010)
The durability of a hybrid ceramic 25-mm-bore ball bearing having a single outer land-guided retainer was evaluated and improved in liquid hydrogen at speeds up to 120,000 rpm (120,000 min-1) (3 million DN) by comparing the propagation of superficial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54503869b3494a7f5bd13bceb6546b67
https://doi.org/10.2474/trol.5.60
https://doi.org/10.2474/trol.5.60