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Construction of theoretical system for nano-gap fluid lubrication based on flow measurement

Research Project

Project/Area Number 17H01243
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionNagoya University

Principal Investigator

Fukuzawa Kenji  名古屋大学, 工学研究科, 教授 (60324448)

Co-Investigator(Kenkyū-buntansha) 伊藤 伸太郎  名古屋大学, 工学研究科, 准教授 (50377826)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥43,940,000 (Direct Cost: ¥33,800,000、Indirect Cost: ¥10,140,000)
Fiscal Year 2019: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2018: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2017: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Keywordsナノトライボロジー / 潤滑 / 流れ計測 / MEMS / 蛍光計測 / 蛍光計測法 / 蛍光相互相関法
Outline of Final Research Achievements

The purpose of this study is to clarify the fluid lubrication phenomenon of nano-sliding gaps by focusing on the flow of lubricant molecules. We have proposed a method for measuring the flow of lubricant molecules in a nano-gaps using a micro fluidic device, and have successfully confirmed the principle. In addition, we have succeeded in constructing a measurement system based on ellipsometry and confirming the principle of simultaneous measurement of shear force and gap for nano-gap lubrication.

Academic Significance and Societal Importance of the Research Achievements

ナノしゅう動すきまにおいては,流体潤滑作用の本質である潤滑剤分子の流れの解明は困難で,その理論体系確立の大きな障害となっていた.そして,潤滑剤分子の流れとしては,局所的な圧力差による圧力流れとしゅう動面のせん断によるせん断流れの解明が必須だが,いずれもナノすきまでの計測は困難だった.本研究では,新規な計測法の提案と実証に取り組み,その原理確認に成功した.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (22 results)

All 2020 2019 2018 2017 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Extension of measurement range of lubrication gap shape using vertical-objective-type ellipsometric microscopy with two compensator angles2020

    • Author(s)
      Katsuya Namba, Kenji Fukuzawa, Shintaro Itoh, Hedong Zhang, Naoki Azuma
    • Journal Title

      Tribology International

      Volume: 142 Pages: 105980-105980

    • DOI

      10.1016/j.triboint.2019.105980

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Validation of correction method for gap shape measurement by vertical-objective-type ellipsometric microscopy with rotating-compensator ellipsometry2019

    • Author(s)
      Katsuya Namba, Yusuke Sasao, Kenji Fukuzawa, Shintaro Itoh, Hedong Zhang
    • Journal Title

      Journal of Advanced Mechanical Design, Systems, and Manufacturing

      Volume: 13 Issue: 2 Pages: JAMDSM0025-JAMDSM0025

    • DOI

      10.1299/jamdsm.2019jamdsm0025

    • NAID

      130007624512

    • ISSN
      1881-3054
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Measurement of nanometer-thick lubricating films using ellipsometric microscopy2018

    • Author(s)
      Kenji Fukuzawa, Yusuke Sasao, Katsuya Namba, Chihiro Yamashita, Shintaro Itoh, and Hedong Zhang
    • Journal Title

      Tribology International

      Volume: 122 Pages: 8-14

    • DOI

      10.1016/j.triboint.2018.02.016

    • NAID

      120006491438

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced Viscoelasticity of Polyalphaolefins Confined and Sheared in Submicron-to-nanometer-sized Gap Range and Its Dependence on Shear Rate and Temperature2018

    • Author(s)
      Shintaro Itoh, Yuya Ohta, Kenji Fukuzawa, Hedong Zhang
    • Journal Title

      Tribology International

      Volume: 120 Pages: 210-217

    • DOI

      10.1016/j.triboint.2017.12.022

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Real-time Observation of Molecularly Thin Lubricant Films on Head Sliders Using Rotating-Compensator-Based Ellipsometric Microscopy2017

    • Author(s)
      Kenji Fukuzawa, Ken Miyata, Chihiro Yamashita, Shintaro Itoh, Hedong Zhang
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 53 Issue: 11 Pages: 8300404-8300404

    • DOI

      10.1109/tmag.2017.2694443

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] マイクロ流体デバイスと蛍光相関分光法の組み合わせによる一様微小隙間での潤滑剤粘度計測2020

    • Author(s)
      木本 貴幸,福澤 健二,伊藤 伸太郎,東 直輝,張 賀東
    • Organizer
      IIP2020 情報・知能・精密機器部門(IIP部門)講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Observation of Lubrication Films in Nanometer-Gap under Reciprocating Sliding by Vertivcal-Objective-Type Ellipsometic Microscopy2019

    • Author(s)
      Katsuya Namba, Kenji Fukuzawa, Kaiito Yamanaka, Shintaro Itoh, Hedong Zhang
    • Organizer
      International Tribology Conference Sendai 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 垂直観測型エリプソメトリー顕微鏡を用いたナノすきま潤滑における潤滑膜の状態 変化の観測2019

    • Author(s)
      難波克也,福澤健二,山中魁人,伊藤伸太郎,張賀東
    • Organizer
      トライボロジー会議2019春 東京
    • Related Report
      2019 Annual Research Report
  • [Presentation] エリプソメトリー顕微鏡によるナノ潤滑現象の可視化2019

    • Author(s)
      福澤健二
    • Organizer
      2019年第1回極限ナノ造形・構造物性研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] ナノスケールのすき間でせん断される液体のレオロジー計測2019

    • Author(s)
      伊藤 伸太郎
    • Organizer
      IIP2019情報・知能・精密機器部門(IIP部門)講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Measurement of temperature dependence of lubricant viscosity in nano gaps by fiber wobbling method combined with laser heating2018

    • Author(s)
      S. Itoh, K. Kamiya, K. Fukuzawa, H. Zhang
    • Organizer
      Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Correction Method for Measurement of Gap Shape by Vertical-Objective-Type Ellipsometric Microscopy with Rotating-Compensator Ellipsometry2018

    • Author(s)
      Katsuya Namba, Yusuke Sasao, Kenji Fukuzawa, Shintaro Itoh, Hedong Zhang
    • Organizer
      6th Asia International Conference on Tribology
    • Related Report
      2018 Annual Research Report
  • [Presentation] Viscoelasticity of Polyisobutylene-added Polyalphaolefin Sheared in Submicron-to-Nanometer-Sized Gap Range2018

    • Author(s)
      Shintaro Itoh, Ryosuke Aoki, Kenji Fukuzawa, Hedong Zhang
    • Organizer
      2018 STLE Tribology Frontiers Conference
    • Related Report
      2018 Annual Research Report
  • [Presentation] 垂直観測型エリプソメトリー顕微鏡による往復しゅう動時のすきま形状の観測2018

    • Author(s)
      難波克也,福澤健二,笹尾優介,伊藤伸太郎,張賀東
    • Organizer
      トライボロジー会議2018 秋 伊勢
    • Related Report
      2018 Annual Research Report
  • [Presentation] Real-time Observation of Molecularly Thin Lubricant Films on Head Sliders Using Rotating-Compensator-Based Ellipsometric Microscopy2017

    • Author(s)
      Kenj Fukuzawa, Ken Miyata, Chihiro Yamashita, Shintaro Itoh, Hedong Zhang
    • Organizer
      IEEE International Magnetics Conference (INTERMAG Europe 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurement of shape of nm-sliding gaps by using ellipsometric microscopy2017

    • Author(s)
      Kenji FUKUZAWA, Yusuke SASAO, Shintaro ITOH, Hedong ZHANG
    • Organizer
      The 6th World Tribology Congress
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Real-time visualization of nm-thick liquid films by ellipsometric microscopy2017

    • Author(s)
      Kenji FUKUZAWA
    • Organizer
      ISPlasma2018 / IC-PLANTS2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ナノ厚さ液体膜を介した摺動における摩擦の計測2017

    • Author(s)
      福澤健二
    • Organizer
      日本学術振興会 ナノプローブテクノロジー第167委員会第85回研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 回転補償子法を用いた垂直観測型エリプソメトリー顕微鏡によるナノすきまの定量化2017

    • Author(s)
      難波克也,笹尾優介,福澤健二,伊藤伸太郎,張賀東
    • Organizer
      トライボロジー会議2017 秋 高松
    • Related Report
      2017 Annual Research Report
  • [Presentation] 垂直観測型エリプソメトリー顕微鏡によるナノしゅう動すきま形状の定量計測2017

    • Author(s)
      笹尾優介,難波克也,福澤健二, 伊藤伸太郎,張賀東
    • Organizer
      トライボロジー会議2017 秋 高松
    • Related Report
      2017 Annual Research Report
  • [Book] 数値解析と表面分析によるトライボロジーの解明と制御2017

    • Author(s)
      福澤健二ほか(分担執筆)
    • Total Pages
      1192
    • Publisher
      株式会社テクノシステム
    • ISBN
      9784924728806
    • Related Report
      2017 Annual Research Report
  • [Remarks] 名古屋大学 福澤研究室

    • URL

      http://ayame.fukuzawa.nuem.nagoya-u.ac.jp/

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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