Výsledky vyhledávání - "Ryuta Ichiki"

Akademický článek

Surface Treatment of Boron Doped Diamond by Atmospheric-Pressure Nitrogen Plasma Jet: Effects on the Electrochemical Characteristics

Autor: Taro KINUMOTO, Toru TOMITA, Mai SATO, Miki MATSUOKA, Ryuta ICHIKI

Publikováno v: Electrochemistry, Vol 91, Iss 5, Pp 057002-057002 (2023)

An atmospheric-pressure nitrogen plasma jet (APN2PJ) treatment for conductive boron-doped diamond (BDD) electrode is reported for the first time. APN2PJ is a unique technique that can generate NH and nitrogen-related radicals at high density even und

Externí odkaz: https://doaj.org/article/3f571802b17a4d10a58032321be02d8e

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Akademický článek

Ignition-area extension of dielectric barrier discharge under high temperature

Autor: Ryuta Ichiki, Tomoki Komatsu, Kaito Yakushiji, Kosuke Tachibana, Takashi Furuki, Seiji Kanazawa, Shinji Yoshimura

Publikováno v: Results in Physics, Vol 29, Iss , Pp 104791- (2021)

We discovered that the ignition area of a planar dielectric barrier discharge gradually extends beyond the area of the opposite electrode when the ambient temperature increases. Even with the opposite electrode the sectional area of which is less tha

Externí odkaz: https://doaj.org/article/80d6485799614031956f73d8a8fa1857

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Akademický článek

Development and Evaluation of Newly Designed Coaxial Cylindrical Plasma Reactor with Liquid Flow Control and Post-Discharge Reactions for Water Treatment

Autor: Kosuke Tachibana, Ryosuke Hanabata, Takashi Furuki, Ryuta Ichiki, Seiji Kanazawa, Marek Kocik

Publikováno v: Energies, Vol 15, Iss 11, p 4028 (2022)

Water purification by non-equilibrium atmospheric pressure plasma has attracted much attention and is expected to be a next-generation method. However, general approaches to improve the energy efficiency of the water purification have not been reveal

Externí odkaz: https://doaj.org/article/8390daa9f3f94d5b818dbfa5ec933441

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Akademický článek

Development of local evacuation system for inhibiting oxidization in atmospheric-pressure plasma jet nitriding

Autor: Seiga Chiba, Ryuta Ichiki, Tatsuyuki Nakatani, Takahisa Ueno, Seiji Kanazawa

Publikováno v: Results in Physics, Vol 13, Iss , Pp - (2019)

To inhibit oxidization during nitriding process using the atmospheric-pressure plasma jet, we developed a local evacuation system. By this system, we perform vacuum purge in the treatment atmosphere locally to reduce residual oxygen. As a result, the

Externí odkaz: https://doaj.org/article/760f05f7758d44e9b65073a3af4b0498

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Akademický článek

Controlling Nitrogen Dose Amount in Atmospheric-Pressure Plasma Jet Nitriding

Autor: Ryuta Ichiki, Masayuki Kono, Yuka Kanbara, Takeru Okada, Tatsuro Onomoto, Kosuke Tachibana, Takashi Furuki, Seiji Kanazawa

Publikováno v: Metals, Vol 9, Iss 6, p 714 (2019)

A unique nitriding technique with the use of an atmospheric-pressure pulsed-arc plasma jet has been developed to offer a non-vacuum, easy-to-operate process of nitrogen doping to metal surfaces. This technique, however, suffered from a problem of exc

Externí odkaz: https://doaj.org/article/5fc0501fa40b449ead6e58dad0be021f

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