Researcher Profiles - KUWAHARA Takuya

写真a

KUWAHARA Takuya

Organization

Graduate School of Engineering Division of Mechanical Engineering Lecturer
School of Engineering Department of Mechanical Engineering

Affiliation

Institute of Engineering

Affiliation campus

Nakamozu Campus

Position

Graduate School of Engineering Division of Mechanical Engineering

Lecturer 2022.04 - Now
School of Engineering Department of Mechanical Engineering

Lecturer 2022.04 - Now

Degree

Ph.D. in Engineering （ Tohoku University ）
Master's degree in Engineering （ Tohoku University ）
Bachelor's degree in Engineering （ Tohoku University ）

Research Areas

Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Machine elements and tribology
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Design engineering

Research Interests

Surface Science
Mechanochemistry
Computational Materials Science
Tribology

Committee Memberships (off-campus)

ITC Himeji 2027 Organizing Committee

2026.03 - Now
日本トライボロジー学会編集委員会

2023.06 - Now

Job Career (off-campus)

大阪公立大学大学院工学研究科機械系専攻

2022.04 - Now
大阪市立大学大学院工学研究科機械物理系専攻

2022.01 - 2022.03
Fraunhofer Institute for Mechanics of Materials IWM Graduate School of Engineering Researcher

2018.04 - 2021.12
Fraunhofer Institute for Mechanics of Materials IWM

2018.04 - 2021.12
Fraunhofer Institute for Mechanics of Materials IWM MicroTribology Center µTC JSPS Postdoctoral Fellow for Research Abroad

2016.04 - 2018.03
Tohoku University Graduate School of Engineering JSPS Research Fellow DC1

2013.04 - 2016.03

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Papers

Transient Formation of Single Layer Diamond During Friction Force Microscopy of SiC-Supported Epitaxial Graphene Reviewed

Zarshenas M.

Advanced Materials Interfaces 12 ( 22 ) 2025.11

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Publishing type：Research paper (scientific journal)

DOI： 10.1002/admi.202500511
Curriculum Vitae of Takuya Kuwahara, Osaka Metropolitan University Reviewed

KUWAHARA Takuya

JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS 70 ( 11 ) 668 - 674 2025.11（ ISSN:09151168 ）（ eISSN:21899967 ）

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Publishing type：Research paper (scientific journal)

Diamond-like amorphous carbon (DLC) coatings are promising materials for tribological applications and tremendous efforts have
been devoted to improving their tribological properties under various environments and conditions. Nevertheless, the buried nature
of the tribological interface makes it difficult to monitor interfacial phenomena and structures in situ, thereby hindering the
understanding of the underlying microscopic mechanisms. Atomistic simulations such as molecular dynamics and first-principles
calculations are highly effective to model tribological processes occurring at the nanoscale. This article reviews results of
atomistic simulations that have revealed tribochemical reactions of lubricants with solid surfaces and detailed mechanisms
underlying superlubricity and wear of DLC coatings in boundary lubrication.

DOI： 10.18914/tribologist.70.11_668

CiNii Research
Chemical functionalities govern polyamide–alumina adhesion through local conformational dynamics Reviewed

Toyoshi Yoshida, Koki Teramoto, Takuya Kuwahara

Communications Materials 6 ( 1 ) 2025.11

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Publishing type：Research paper (scientific journal)

DOI： 10.1038/s43246-025-00977-y
Prologue to the Special Issue on “Tribology Simulations from Atomic to Mesoscale” Reviewed

KUWAHARA Takuya

JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS 70 ( 8 ) 472 - 472 2025.08（ ISSN:09151168 ）（ eISSN:21899967 ）

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Publishing type：Research paper (scientific journal)

DOI： 10.18914/tribologist.70.08_472

CiNii Research
トライボケミストリーに関する分子シミュレーション Reviewed

桑原卓哉

アンサンブル 26 ( 3 ) 263 - 268 2024.07（ ISSN:18846750 ）（ eISSN:18845088 ）

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Publishing type：Research paper (scientific journal)

高温・高接触圧力といった過酷環境下での接触・摺動では，摩擦係数は固体表面間の化学的な相互作用に支配される．また，表面構造は力学的刺激により誘起される潤滑油の表面化学反応や材料表面の構造変化といったトライボケミカル反応に影響されることから，それらの理解が摩擦制御に不可欠である．本稿では，炭素系硬質膜及びセラミクス材料の超潤滑発現を支配するトライボケミストリーに関する最新の分子シミュレーション研究を紹介する．

DOI： 10.11436/mssj.26.263

CiNii Research
トライボケミストリーに関する分子シミュレーション Invited

桑原卓哉

アンサンブル 26 ( 3 ) 263 - 268 2024.07

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Authorship：Lead author,　Last author,　Corresponding author Publishing type：Research paper (scientific journal)
シミュレーションを用いたDLCと潤滑油添加剤のトライボケミストリーの研究 Invited

桑原卓哉

月刊トライボロジー 38 ( 6 ) 48 - 53 2024.06

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Authorship：Lead author,　Last author,　Corresponding author Publishing type：Research paper (scientific journal)
Surface Depassivation via B-O Dative Bonds Affects the Friction Performance of B-Doped Carbon Coatings Reviewed

Peeters S.

ACS Applied Materials and Interfaces 16 ( 14 ) 18112 - 18123 2024.04（ ISSN:19448244 ）

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Publishing type：Research paper (scientific journal)

DOI： 10.1021/acsami.3c18803
Superlubricity of Silicon-Based Ceramics Sliding against Hydrogenated Amorphous Carbon in Ultrahigh Vacuum: Mechanisms of Transfer Film Formation Reviewed

Kuwahara T.

ACS Applied Materials and Interfaces 16 ( 6 ) 8032 - 8044 2024.02（ ISSN:19448244 ）

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Publishing type：Research paper (scientific journal)

DOI： 10.1021/acsami.3c16286
Molecular dynamics simulation of direct joining interface between polyamide and aluminum alloy

YOSHIDA Toyoshi, KUWAHARA Takuya, KANEKO Yoshihisa

The Proceedings of The Computational Mechanics Conference 2024.37 ( 0 ) OS-2002 2024（ eISSN:24242799 ）

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Publishing type：Research paper (scientific journal)

Injection molded direct joining is a metal–plastic direct joining method. Recently, this method has attracted attention for reducing the weight of metal parts of automobiles. The joining mechanisms are the anchor effect of the metal surface shape and the intermolecular interactions and chemical bonds between the metal and resin. In this study, we focused on polyamide (PA), which has excellent mechanical properties, and aluminum alloy. The chemical composition of the joining surface of a surface–treated aluminum alloy was investigated using X-ray Photoelectron Spectroscopy. It was revealed that the proportion of OH groups on the aluminum surface decreased after the aluminum alloy anodization. Therefore, based on the experimental results, we prepared the numerical simulation models of the joining interface between PA and aluminum alloy and verified the influencing factors related to the joining mechanism using all-atom model molecular dynamics simulations.

DOI： 10.1299/jsmecmd.2024.37.os-2002

CiNii Research
Tribochemistry of DLC Coatings Interacting with ZDDP-Additivated Oils Reviewed

KUWAHARA Takuya

JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS 68 ( 11 ) 788 - 790 2023.11（ ISSN:09151168 ）（ eISSN:21899967 ）

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Publishing type：Research paper (scientific journal)

DOI： 10.18914/tribologist.68.11_788

CiNii Research
Formation of intermittent covalent bonds at high contact pressure limits superlow friction on epitaxial graphene Reviewed

Szczefanowicz B.

Physical Review Research 5 ( 1 ) 2023.01（ ISSN:26431564 ）

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Publishing type：Research paper (scientific journal)

DOI： 10.1103/PhysRevResearch.5.L012049
Formation of intermittent covalent bonds at high contact pressure limits superlow friction on epitaxial graphene Reviewed International coauthorship

Physical Review Research 2023

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Publishing type：Research paper (scientific journal) International / domestic magazine：International journal
Interplay of mechanics and chemistry governs wear of diamond-like carbon coatings interacting with ZDDP-additivated lubricants Reviewed

Salinas Ruiz V.R.

Nature Communications 12 ( 1 ) 2021.12

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Publishing type：Research paper (scientific journal)

DOI： 10.1038/s41467-021-24766-6
Superlow friction of a-C:H coatings in vacuum: Passivation regimes and structural characterization of the sliding interfaces Reviewed

Kuwahara T.

Coatings 11 ( 9 ) 2021.09

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Publishing type：Research paper (scientific journal)

DOI： 10.3390/coatings11091069
Rotational Dynamics of Water at the Phospholipid Bilayer Depending on the Head Groups Studied by Molecular Dynamics Simulations Reviewed

Higuchi Y.

Langmuir 37 ( 17 ) 5329 - 5338 2021.05（ ISSN:07437463 ）

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Publishing type：Research paper (scientific journal)

DOI： 10.1021/acs.langmuir.1c00417
Atomistic Tribology Simulations of Hard Carbon Coatings Reviewed

KUWAHARA Takuya, REICHENBACH Thomas, MORAS Gianpietro, MOSELER Michael

JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS 66 ( 4 ) 281 - 287 2021.04（ ISSN:09151168 ）（ eISSN:21899967 ）

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Publishing type：Research paper (scientific journal)

Owing to their extraordinary combination of mechanical properties, thermal conductivities and chemical inertness, carbon hard coatings, such as nanocrystalline diamond and diamond-like amorphous carbon, have recently drawn attention for superlubricity applications (μ < 0.01) in a broad range of engineering systems. Yet, despite many efforts to understand phenomena occurring at buried sliding interfaces, they still remain elusive. Atomistic simulations of friction between two surfaces in relative motion have been of increasingly importance to gain insights into the physical and chemical origin of friction and wear. They can be also utilized for designing custom-tailored lubricants and superlubricious interfaces. This article reviews state-of-the-art results of atomistic simulations in tribology of diamond and diamond-like amorphous carbon surfaces in both dry friction and boundary lubrication with water and organic friction modifiers such as fatty acids and glycols.

DOI： 10.18914/tribologist.66.04_281

CiNii Research
In Situ Synthesis of Graphene Nitride Nanolayers on Glycerol-Lubricated Si<inf>3</inf>N<inf>4</inf>for Superlubricity Applications Reviewed

Long Y.

ACS Applied Nano Materials 4 ( 3 ) 2721 - 2732 2021.03

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Publishing type：Research paper (scientific journal)

DOI： 10.1021/acsanm.0c03362
Steric Effects Control Dry Friction of H- And F-Terminated Carbon Surfaces Reviewed

Reichenbach T.

ACS Applied Materials and Interfaces 12 ( 7 ) 8805 - 8816 2020.02（ ISSN:19448244 ）

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Publishing type：Research paper (scientific journal)

DOI： 10.1021/acsami.9b18019
Mechano-chemical decomposition of organic friction modifiers with multiple reactive centres induces superlubricity of ta-C Reviewed

Kuwahara T.

Nature Communications 10 ( 1 ) 2019.12

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Publishing type：Research paper (scientific journal)

DOI： 10.1038/s41467-018-08042-8

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Books and Other Publications

DLC膜ハンドブック

桑原卓哉（ Role： Contributor , 第6章6節）

エヌ・ティー・エス 2026.03

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Book type：Scholarly book

Presentations

DLCの超潤滑：シミュレーションによるミクロなメカニズムの理解 Invited Domestic conference

桑原卓哉

令和7年度トライボロジー技術フォーラム 2025.12 神奈川県産業技術総合研究所

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Presentation type：Oral presentation (invited, special)

Venue：海老名
Can atomic-scale tribochemistry explain macroscale friction and wear? Invited International conference

Takuya Kuwahara

France-Japan Forum 2025 2025.11

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Presentation type：Oral presentation (general)

Venue：Lyon, France
Quantum mechanical molecular dynamics modeling: Evolution of tribo-interfaces and emergence of superlubricity Invited International conference

Takuya Kuwahara

NEMD 2025 2025.06

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Presentation type：Oral presentation (keynote)

Venue：Osaka, Japan
固体潤滑・境界潤滑の分子シミュレーション Invited Domestic conference

桑原卓哉

2024年度第1回固体潤滑研究会 2025.03

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Presentation type：Oral presentation (invited, special)
シミュレーションが拓く摩擦界面の科学 Invited Domestic conference

桑原卓哉

トライボロジー会議2024秋名護 2024.10

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Presentation type：Oral presentation (invited, special)
第一原理的分子動力学法による摩擦研究 Invited Domestic conference

桑原卓哉

摩擦学の新展開：アモントンークーロン則を超えて 2024.09

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Presentation type：Oral presentation (invited, special)
DLCのトライボケミストリー：シミュレーションによるメカニズム解明と摩擦界面設計 Invited Domestic conference

桑原卓哉

2024年度第1回トライボケミストリー研究会 2024.08

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Presentation type：Oral presentation (invited, special)
In Situ Formation of Superlubricious Surfaces by Mechano-Chemical Decomposition of Organic Friction Modifiers Invited International conference

Takuya Kuwahara

CIMTEC 2024 2024.06

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Presentation type：Oral presentation (invited, special)
Superlubricity of Silicon-based Ceramics Controlled by Interfacial Mechanochemistry Invited International coauthorship International conference

9th International Tribology Conference Fukuoka 2023 2023.09

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Presentation type：Oral presentation (invited, special)
Breaking of superlubricitiy of epitaxial graphene by mechanochemical activation Invited International coauthorship International conference

64th German Tribology Conference 2023.09

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Presentation type：Oral presentation (invited, special)
Mechanisms of Transfer Film Formation at the Sliding Interface Between Silicon-based Ceramics and Hydrogenated Amorphous Carbon International coauthorship International conference

Tribochemistry Beppu 2023 2023.09

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Presentation type：Oral presentation (general)
第一原理的分子動力学法による摩擦研究 Invited Domestic conference

桑原卓哉

摩擦学の新展開：アモントンークーロン則を超えて

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Presentation type：Oral presentation (general)
固体潤滑・境界潤滑の分子シミュレーション Invited Domestic conference

桑原卓哉

2024年度第1回固体潤滑研究会

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Presentation type：Oral presentation (general)
ドイツにおける研究環境及びキャリア形成についての講演 Invited Domestic conference

桑原卓哉

平成31年度採用海外特別研究員オリエンテーション及びキャリアフォーラム

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Presentation type：Oral presentation (general)
シミュレーションが拓く摩擦界面の科学 Invited Domestic conference

桑原卓哉

トライボロジー会議2024秋名護

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Presentation type：Oral presentation (general)
Quantum mechanical molecular dynamics modeling: Evolution of tribo-interfaces and emergence of superlubricity Invited Domestic conference

Takuya Kuwahara

NEMD 2025

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Presentation type：Oral presentation (general)
In Situ Formation of Superlubricious Surfaces by Mechano-Chemical Decomposition of Organic Friction Modifiers Invited Domestic conference

Takuya Kuwahara

CIMTEC 2024

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Presentation type：Oral presentation (general)
DLCのトライボケミストリー：シミュレーションによるメカニズム解明と摩擦界面設計 Invited Domestic conference

桑原卓哉

2024年度第1回トライボケミストリー研究会

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Presentation type：Oral presentation (general)

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Grant-in-Aid for Scientific Research

Emergence of superlubricity through atomic-scale cross-talk between mechanics and chemistry and development of its theoretical framework

Grant-in-Aid for Scientific Research(B) 2027
Mesoscopic physics of the slip between solid and liquid

Grant-in-Aid for Scientific Research(B) 2027
Emergence of superlubricity through atomic-scale cross-talk between mechanics and chemistry and development of its theoretical framework

Grant-in-Aid for Scientific Research(B) 2026
Mesoscopic physics of the slip between solid and liquid

Grant-in-Aid for Scientific Research(B) 2026
Emergence of superlubricity through atomic-scale cross-talk between mechanics and chemistry and development of its theoretical framework

Grant-in-Aid for Scientific Research(B) 2025
Mesoscopic physics of the slip between solid and liquid

Grant-in-Aid for Scientific Research(B) 2025
Understanding of formation mechanisms of tribofilms derived from ZDDP lubricant additives

Grant-in-Aid for Early-Career Scientists 2024
Mesoscopic physics of the slip between solid and liquid

Grant-in-Aid for Scientific Research(B) 2024

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Contract research

Mechanochemical Synthesis of 2D Superlubricious Atomic Layers

Japan Science and Technology Agency Strategic Basi Research Programs PRESTO 2022.10

Charge of on-campus class subject

機械マテリアル演習

2025 Weekly class Undergraduate
機械システム演習

2025 Weekly class Undergraduate
エネルギー機械演習

2025 Weekly class Undergraduate
機械英語演習

2025 Intensive lecture Undergraduate
機械工学卒業研究A

2025 Intensive lecture Undergraduate
機械設計演習

2025 Weekly class Undergraduate
機械工学概論

2025 Weekly class Undergraduate
機械系特別研究第1

2025 Intensive lecture Graduate school
機械系特別演習第1

2025 Intensive lecture Graduate school
機械系特別演習

2025 Intensive lecture Graduate school
機械系特別研究

2025 Intensive lecture Graduate school
機械系特別研究第2

2025 Intensive lecture Graduate school
機械系特別演習第2

2025 Intensive lecture Graduate school
プログラミング入門A

2025 Weekly class Undergraduate
技術と環境

2025 Intensive lecture Undergraduate
機械工学卒業研究B

2025 Intensive lecture Undergraduate
機械製作実習

2025 Weekly class Undergraduate
機械製図演習

2025 Weekly class Undergraduate
機械製図演習

2025 Weekly class Undergraduate
機械工作実習

2025 Weekly class Undergraduate
機械工作実習

2025 Weekly class Undergraduate
機械工学基礎

2025 Weekly class Undergraduate
卒業研究

2025 Intensive lecture Undergraduate
設計製作実習

2025 Intensive lecture Undergraduate
設計製作実習

2025 Intensive lecture Undergraduate
機械マテリアル演習

2024 Weekly class Undergraduate
機械システム演習

2024 Weekly class Undergraduate
エネルギー機械演習

2024 Weekly class Undergraduate
機械設計演習

2024 Weekly class Undergraduate
機械工学概論

2024 Weekly class Undergraduate
機械系特別研究第1

2024 Intensive lecture Graduate school
機械系特別演習第1

2024 Intensive lecture Graduate school
設計製作実習

2024 Intensive lecture Undergraduate
設計製作実習

2024 Intensive lecture Undergraduate
機械製作実習

2024 Weekly class Undergraduate
機械製図演習

2024 Weekly class Undergraduate
機械製図演習

2024 Weekly class Undergraduate
機械工作実習

2024 Weekly class Undergraduate
機械工作実習

2024 Weekly class Undergraduate
機械工学基礎

2024 Weekly class Undergraduate
機械系特別研究第2

2024 Intensive lecture Graduate school
機械系特別演習第2

2024 Intensive lecture Graduate school
プログラミング入門A

2024 Weekly class Graduate school
卒業研究

2024 Intensive lecture Undergraduate
設計製作実習

2024 Intensive lecture Undergraduate
設計製作実習

2024 Intensive lecture Undergraduate

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Number of papers published by graduate students

2025

Number of graduate students presentations：1

Number of instructed thesis, researches

2025

Number of instructed the graduation thesis：3

[Number of instructed the Master's Program] (previous term)：6
2024

Number of instructed the graduation thesis：3

[Number of instructed the Master's Program] (previous term)：5

[Number of master's thesis reviews] (vice-chief)：2
2023

Number of instructed the graduation thesis：3

[Number of instructed the Master's Program] (previous term)：2
2022

Number of instructed the graduation thesis：3

Social Activities　⇒ Link to the list of Social Activities

自動車や航空機の軽量化・高強度化に貢献！金属とプラスチックが接合するメカニズムを原子レベルで解明

Role(s)： Media coverage,　Official expert

Type： Internet

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SDGs：

Media Coverage

金属とプラスチックが接合するメカニズムを原子レベルで解明 Newspaper, magazine

日刊工業新聞社日刊工業新聞 2025.11

Position

Position

Degree

Degree

Research Areas

Research Areas

Research Interests

Research Interests

Committee Memberships (off-campus)

Committee Memberships (off-campus)

Job Career (off-campus)

Job Career (off-campus)

Papers

Papers

Books and Other Publications

Books and Other Publications

Presentations

Presentations

Grant-in-Aid for Scientific Research

Grant-in-Aid for Scientific Research

Contract research

Contract research

Charge of on-campus class subject

Charge of on-campus class subject

Number of papers published by graduate students

Number of papers published by graduate students

Number of instructed thesis, researches

Number of instructed thesis, researches

Social Activities ⇒ Link to the list of Social Activities

Social Activities ⇒ Link to the list of Social Activities

Media Coverage

Media Coverage

Social Activities　⇒ Link to the list of Social Activities

Social Activities　⇒ Link to the list of Social Activities