MURAOKA Mikio

写真a

Affiliation

Graduate School of Engineering Science  Department of Systems Design Engineering  Mechanical Engineering Course 

Laboratory Address

1-1 Tegatagakuenn-cho, Akita, 010-8502, Japan

Mail Address

E-mail address

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Research Interests 【 display / non-display 】

  • Mechanics of materials

  • Nanotechnology

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Graduating School 【 display / non-display 】

  • 1979.04
    -
    1984.03

    Tohoku University     Graduated

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Graduate School 【 display / non-display 】

  • 1984.04
    -
    1986.03

    Tohoku University  Graduate School, Division of Engineering  Master's Degree Program  Completed

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Campus Career 【 display / non-display 】

  • 2016.04
    -
    Now

    Akita University   Graduate School of Engineering Science   Department of Systems Design Engineering   Mechanical Engineering Course   Professor  

  • 2014.04
    -
    2018.03

    Akita University   Graduate School of Engineering Science   Dean  

  • 2011.04
    -
    2016.03

    Akita University   Graduate School of Engineering and Resource Science   Department of Mechanical Engineering   Professor  

  • 2007.04
    -
    2011.03

    Akita University   Graduate School of Engineering and Resource Science   Associate Professor  

  • 1998.04
    -
    2007.03

    Akita University   Graduate School of Engineering and Resource Science   Associate Professor  

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External Career 【 display / non-display 】

  • 1995.03
    -
    1995.12

    Fraunhofer Institute for Non-Destructive Testing  

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Research Areas 【 display / non-display 】

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials

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Thesis for a degree 【 display / non-display 】

  • Evaluation of fused silica optical fibers for the long-term strength

    Mikio Muraoka 

      1993.03  [Refereed]

    Single author

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Research Achievements 【 display / non-display 】

    ◆Original paper【 display / non-display 】

  • Inhomogeneous intrinsic stress in sputtering-deposited platinum films and its effect on the formation of helical structures

    X. Zhao and M. Muraoka

    Thin Solid Films   755   139344   2022.06  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

  • Ag nanofibers with ultrahigh aspect ratios fabricated by catalytic reduction of solution blowspun AgNO3/PVA/PVP-mixed nanofibers

    X. Zhao, C. Onodera, and M. Muraoka

    International Journal of the Society of Materials Engineering for Resources   25 ( 1 ) 28 - 32   2022.04  [Refereed]

    Research paper (journal)   Domestic Co-author

  • Anisotropic surface-enhanced Raman scattering in shape-controlled Ag microcoils

    X. Zhao, K. Sakuma, M. Yamaguchi, and M. Muraoka

    Materials Letters   30   130178   2021.06  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

  • Rapid Ag nanofiber formation via Pt nanoparticle-assisted H2-free reduction of Ag+-containing polymers

    X. Zhao, Y. Kawamura, and M. Muraoka

    Nanoscale Research Letters   16   96 (1) - 96 (7)   2021.05  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

  • Plasma etching-assisted stress release for fabricating metallic nanocoil networks at low temperatures

    X. Zhao, R. Sakuraba, and M. Muraoka

    Nanoscience and Nanotechnology Letters ( ASP (American Scientific Publishers) )  12 ( 1 ) 107 - 112   2020.07  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

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    ◆International conference proceedings【 display / non-display 】

  • Fracture behavior of metallic nanocoil webs

    X. Zhao, Y. Shitamura, and M. Muraoka

    Proceedings of Asis-Pacific Conference on Fracture and Strength 2016     99 - 100   2016.09  [Refereed]

    Research paper (international conference proceedings)   Domestic Co-author

  • Electromigration in eutectic Sn58Bi solder strips

    X. Zhao, S. Takaya, and M. Muraoka

    2016 M&M International Symposium for Young Researchers     2016.08  [Refereed]

    Research paper (international conference proceedings)   Domestic Co-author

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    ◆Other【 display / non-display 】

  • Some practical examples of the new industrial revolution from a viewpoint of the regional industry promotion (Akita Prefecture)

    SAKAKI Junichi, HAYAMA Nobuhiro, MURAOKA Mikio, HONGO Takenobu

    The Proceedings of Mechanical Engineering Congress, Japan ( The Japan Society of Mechanical Engineers )  2021 ( 0 ) S401-03   2021

    DOI CiNii Research

  • Fabrication of Transparent Conductive Film by Utilizing Pt Catalyst Particles

    ZHAO Xu, KAWAMURA Yukiko, MURAOKA Mikio

    The Proceedings of Mechanical Engineering Congress, Japan ( The Japan Society of Mechanical Engineers )  2020 ( 0 )   2020

    DOI

  • Study on Surface-enhanced Raman Scattering Induced by Ag Nanocoil

    SAKUMA Kensuke, AHMAD Syakir, ZHAO Xu, YAMAGUCHI Makoto, MURAOKA Mikio

    The Proceedings of Mechanical Engineering Congress, Japan ( The Japan Society of Mechanical Engineers )  2020 ( 0 )   2020

    <p>Surface-enhanced Raman scattering (SERS) has been studied to improve the sensitivity of the Raman spectroscopic analysis. Silver and gold nanostructures are known to have remarkable SERS effect. Recently, we reported a study on the fabrication of Ag nanocoil (Ag NC) networks. The Ag NCs has shape anisotropy and high conductivity. Therefore, using Ag NC as SERS substrate is expected to enhance Raman scattering due to the surface plasmon resonance. In this study, SERS of rhodamine 6G (R6G) was measured using Ag NC network-based substrate. Ag NC showed enhancing effect of the Raman scattering, and the effect was observed on and near the nanostructure. The peaks of R6G became clearer, as the diameter and pitch of Ag NC became smaller. These results demonstrated that the shape of Ag NC strongly influences the SERS spectra.</p>

    DOI

  • Fabrication of Metallic Nanocoil Web Utilizing Plasma Treatment

    ZHAO Xu, SAKURABA Ryuma, MURAOKA Mikio

    The Proceedings of Autumn Conference of Tohoku Branch ( The Japan Society of Mechanical Engineers )  2017 ( 0 )   2017

    DOI

  • Terahertz Electromagnetic Wave Absorption of Pt Nanocoil Web

    SATO Tatsuru, MURAOKA Mikio, KURABAYASHI Tohru

    The Proceedings of Mechanical Engineering Congress, Japan ( The Japan Society of Mechanical Engineers )  2017 ( 0 )   2017

    <p>With the development of advanced information society, electromagnetic waves used in various electronic devices have spread to high-frequency band, and new electromagnetic wave absorbers are required. Recently, the authors developed a method for fabricating transparent metallic nanocoil web. The transparent metallic nanocoil web is expected to be applied as a transparent electromagnetic wave absorber. In this study, the transmittance and the reflectance of Pt nanocoil web in the terahertz region were measured using a Fourier transform infrared spectrophotometer, and the absorption was calculated. The absorption was found to increase with the increasing density of Pt nanocoil web. Furthermore, it was found that it has superior electromagnetic wave absorption characteristics and high transparency as compared with Pt nanofiber web and Pt film.</p>

    DOI

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Books 【 display / non-display 】

  • Acoustic scanning probe microscopy

    M. Muraoka, Edited by D. Passeri, F. Marinello, and E. Savo

    Springer  2013.01 ISBN: 978-3-642-27493-0

  • Metallic micro and nano materials－fabrication with atomic diffusion

    M. Saka, K. Sasagawa, M. Muraoka, H. Tohmyoh, Y. Ju

    Springer  2011.09

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Grant-in-Aid for Challenging Research (Pioneering)/(Exploratory)

    Project Year： 2020.08  -  2022.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year： 2015.04  -  2018.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year： 2012.04  -  2015.03 

  • Grant-in-Aid for Challenging Research (Pioneering)/(Exploratory)

    Project Year： 2011.04  -  2013.03 

  • Grant-in-Aid for Scientific Research(B)

    Project Year： 2008.04  -  2011.03 

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Presentations 【 display / non-display 】

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Academic Activity 【 display / non-display 】

  • 2020.12
    -
    Now

  • 2020.04
    -
    Now

  • 2019.04
    -
    2019.09

  • 2018.04
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    2020.03

  • 2016.09
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    2018.03

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