Updated on 2024/10/23

写真a

 
SONG Yuxi
 
Organization
Graduate School of Informatics Department of Complex Systems Science 5 Assistant Professor
Graduate School
Graduate School of Informatics
Undergraduate School
School of Informatics Department of Natural Informatics
Title
Assistant Professor
Contact information
メールアドレス
External link

Degree 3

  1. Doctor (Engineering) ( 2023.9   Nagoya University ) 

  2. Master (Engineering) ( 2020.9   Nagoya University ) 

  3. Bachelor(Engineering) ( 2018.7   Jilin University ) 

Research Interests 4

  1. トライボロジー

  2. ナノ計測

  3. 表面科学

  4. 高分子吸着

Research Areas 3

  1. Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Machine elements and tribology

  2. Nanotechnology/Materials / Thin film/surface and interfacial physical properties

  3. Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Measurement engineering

Research History 2

  1. Nagoya University   Graduate School of Informatics Department of Complex Systems Science 5   Assistant Professor

    2024.4

  2. Japan Society for Promotion of Science   Researcher

    2023.4 - 2024.3

Education 3

  1. Nagoya University

    2020.10 - 2023.9

  2. Nagoya University

    2018.10 - 2020.9

  3. Jilin University

    2014.9 - 2018.7

Professional Memberships 2

  1. STLE

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  2. トライボロジー学会

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Papers 3

  1. Hydration–lubrication performance improvement via synergistic effects of free polymers and polymer brushes Reviewed

    Fengchang Lin, Shintaro Itoh, Tomoko Hirayama, Chizuru Hirooka, Yuxi Song, Kenji Fukuzawa, Hedong Zhang, Naoki Azuma

    Tribology International   Vol. 191   2024.3

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    Publishing type:Research paper (scientific journal)  

    In this study, we demonstrated hydration lubricity improvement via the synergistic effects of free polymers and brush films formed on a surface. We analyzed the hydration interfacial structure using neutron reflectometry and measured the shear viscoelasticity of the film using the fiber wobbling method. The results revealed that the volume fraction of the free polymer adsorbed on the brush film increased, leading to an improvement in the load-carrying capacity. Additionally, a water-rich layer formed on the surface owing to the brush film's exclusion-volume effect, and this layer reduced the shear resistance and increased the lubricity. These insights into the composite films of polymer brushes and adsorbed free polymers offer new perspectives and design principles for the development of hydration lubrication.

    DOI: 10.1016/j.triboint.2023.109189

    Web of Science

    Scopus

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  2. Effects of Polarity of Polymers on Conformation and Lubricating Film Formation of Adsorbed Films Reviewed

    Yuxi Song, Kenji Fukuzawa, Tomoko Hirayama, Naoki Yamashita, Norifumi L Yamada, Shintaro Itoh, Naoki Azuma, Hedong Zhang

    Macromolecules     2023.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1021/acs.macromol.2c02238

  3. In-situ measurement of temporal changes in thickness of polymer adsorbed films from lubricant oil by vertical-objective-based ellipsometric microscopy Reviewed

    Yuxi Song, Kenji Fukuzawa, Shintaro Itoh, Hedong Zhang, Naoki Azuma

    Tribology International     2022.1

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1016/j.triboint.2021.107341

MISC 4

  1. Effects of molecular weight and polarity of polyalkyl methacrylate (PAMA) polymer additives on boundary lubrication performance

    SONG Yuxi, ZHANG Junyan, FUKUZAWA Kenji, ITOH Shintaro, ITOH Shintaro, AZUMA Naoki, AZUMA Naoki, ZHANG Hedong

    日本トライボロジー学会トライボロジー会議予稿集(CD-ROM)   Vol. 2023   2023

  2. Effects of polarity of polyalkylmethacrylate (PAMA) polymer additives on adsorbed film’s thickness and durability

    YUXI Song, FUKUZAWA Kenji, HIRAYAMA Tomoko, ITOH Shintaro, ITOH Shintaro, ZHANG Hedong, AZUMA Naoki

    日本トライボロジー学会トライボロジー会議予稿集(CD-ROM)   Vol. 2022   2022

  3. Formation mechanism and conformation of polyalkylmethacrylate (PAMA) polymer adsorbed film from lubricant oil

    SONG Yuxi, FUKUZAWA Kenji, ITOH Shintaro, ZHANG Hedong, AZUMA Naoki

    日本トライボロジー学会トライボロジー会議予稿集(CD-ROM)   Vol. 2021   2021

  4. Effects of polarity of polyalkylmethacrylate (PAMA) polymer additives on adsorption and friction properties

    SONG Yuxi, GE Dongmeng, FUKUZAWA Kenji, ITOH Shintaro, ITOH Shintaro, ZHANG Hedong, AZUMA Naoki

    日本トライボロジー学会トライボロジー会議予稿集(CD-ROM)   Vol. 2021   2021

Presentations 10

  1. Measurement of Adsorption and Friction Properties of Additive Molecules by Vertical-objective-type Ellipsometric Microscopy Invited International conference

    Kenji Fukuzawa, Yuxi Song

    International Tribology Conference 2023 (ITC2023)  2023.9.29 

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    Presentation type:Oral presentation (invited, special)  

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  2. A new method for measuring adsorption and friction properties of additive polymer molecules by vertical-objective-type ellipsometric microscopy Invited

    Kenji Fukuzawa, Yuxi Song

    Annual Meeting of the Japan Society of Vacuum and Surface Science 2023 

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    Event date: 2023.10 - 2023.11

    Presentation type:Oral presentation (invited, special)  

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  3. Prediction of Adsorption Film Thickness of Polymer Additives in Lubricant Oil with Hansen Solubility Parameters International conference

    Yuxi Song, Kenji Fukuzawa, Tomoko Hirayama, Naoki Yamashita, Shintaro Itoh, Naoki Azuma, Hedong Zhang

    International Tribology Conference 2023 (ITC2023)  2023.9.30 

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    Event date: 2023.9

    Presentation type:Oral presentation (general)  

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  4. Effects of polarity of polyalkylmethacrylate (PAMA) polymer additives on film formation ability during sliding International conference

    Yuxi Song, Kenji Fukuzawa, Shintaro Itoh, Naoki Azuma, Hedong Zhang

    2022 JSME-IIP/ASME-ISPS Joint Conference on Micromechatronics for Information and Precision Equipment (MIPE2022)  2022.8.29 

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    Event date: 2022.8

    Presentation type:Oral presentation (general)  

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  5. Evaluation of adsorbed film formation of additives in lubricant oil with vertical-type-objective ellipsometric microscope International conference

    Yuxi Song, Kenji Fukuzawa, Shintaro Itoh, Naoki Azuma, Hedong Zhang

    7th World Tribology Congress 

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    Event date: 2022.7

    Presentation type:Oral presentation (general)  

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  6. Effects of polarity of polyalkylmethacrylate(PAMA) polymer additives on adsorbed film’s thickness and durability

    S. Yuxi, K. Fukuzawa, T. Hirayama, S. Itoh, H. Zhang, N. Azuma

    トライボロジー会議2022 春 

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    Event date: 2022.5

    Presentation type:Oral presentation (general)  

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  7. ポリアルキルメタクリレート(PAMA)系高分子添加剤の極性が摺動時の油膜形成能力に及ぼす影響

    ソンユシ, 福澤健二, 平山朋子, 山下直輝, 伊藤伸太郎, 東直輝, 張賀東

    トライボロジー会議2022 秋 

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    Event date: 2021.11

    Presentation type:Oral presentation (general)  

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  8. ポリアルキルメタクリレート(PAMA)ポリマー添加剤の極性が吸着・摩擦特性に及ぼす影響

    ソンユシ, 葛冬萌, 福澤健二, 伊藤伸太郎, 張賀東, 東直輝

    トライボロジー会議2021 秋 松江  2021.10.28 

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    Event date: 2021.10

    Presentation type:Oral presentation (general)  

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  9. 潤滑油からのポリアルキルメタクリレート(PAMA)ポリマー吸着膜の形成メカニズムと構造

    ソンユシ, 福澤健二, 伊藤伸太郎, 張賀東, 東直輝

    トライボロジー会議2021 春 東京  2021.5.25 

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    Event date: 2021.5

    Presentation type:Oral presentation (general)  

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  10. Evaluation of adsorbed film formation of additives in lubricant oil with vertical type-objective ellipsometric microscope

    ソン ユシ, 難波克也, 福澤健二, 伊藤伸太郎, 張賀東

    トライボロジー会議2020 秋 別府 

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    Event date: 2020.11

    Presentation type:Oral presentation (general)  

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KAKENHI (Grants-in-Aid for Scientific Research) 3

  1. 新規な計測法を用いた電気自動車用潤滑油の分子設計論の基盤構築

    Grant number:24K22927  2024.7 - 2026.3

    科学研究費助成事業  研究活動スタート支援

    宋 玉璽

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    Authorship:Principal investigator 

    Grant amount:\2860000 ( Direct Cost: \2200000 、 Indirect Cost:\660000 )

  2. Optimal Molecular Design of Polymeric Organic Friction Modifiers: A Computational Scheme Linking Molecular Structure to Macroscopic Frictional Properties

    Grant number:24H00282  2024.4 - 2028.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Coinvestigator(s) 

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  3. 分子の状態と相互作用の解明による高分子添加剤の分子設計論の構築

    Grant number:23KJ1082  2023.4 - 2025.3

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    SONG YUXI

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    環境と調和した持続可能な社会の実現や、自動車などの機械システムのエネルギー効率向上のため、潤滑油の低粘度化が求められている。しかし、低粘度油を使用すると、摺動面が直接接触するため、摩擦が大きくなる。潤滑油に含まれる高分子添加剤は、摺動面に吸着することで、摺動面の直接接触による摩擦を低減することができる。本研究では、添加剤、潤滑剤、摺動面間の分子間相互作用を定量化し、分子間相互作用から分子状態を推定することができる。これにより、分子構造から潤滑性能の予測が可能となり、ボトムアップ型の添加剤分子設計理論の確立を目指す。

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