What's New!

2018/10/1
Me and Prof. Kubo (Tohoku Univ.), Dr. Onodera (Hitachi), Dr. Bai (Kyocera) organize "Tribology simulation" symposium, and many JAST & STLE young researchers organize "JAST & STLE young tribologist symposium", ITC2019 (International Tribology Conference), September 17-21, 2019, Sendai International Center.
2018/2/5
Me and Prof. Hedong Zhang (Nagoya Univ) organize "Advanced Simulation in Science and Engineering" session at 2018 JSME-IIP/ASME-ISPS(MIPE 2018) Joint Conference on Micromechatronics for Information and Precision Equipment , August 29-30, 2018, Hilton San Francisco Financial District, San Francisco, California, USA.
2017/12/25
We organize Special session of Tribology and Interface at MMM2018 which will be held in Oct. 2018 at Osaka Japan. Please join us!
2017/5/22
We made 2 presentations at the STLE 2017 annual meeting at Atlanta U.S.
2017/5/22
Prof. Washizu will join 10th Liquid Matter Conference, Ljubljana, Slovenia (17 July), The 8th Advanced Forum on Tribology 2017, Zhenjiang, China (14 Sep.), World Tribology Congrress 2017, Peking, China (17 Sep.).
2017/4/17
Mr. Maeda (MS student) won a " 2016 Student Award" from the Japanese Society of Tribologists.
2017/3/20
Prof. Washizu made a presentation at 4th International Tribology Symposium of IFToMM (International Federation for the Promotion of Mechanism and Machine Science) (ITS-IFToMM 2017) / 1st K-Tribology International Symposium (K-TIS 2017), Jeju, Korea.
2017/1/25
We made 3 presentations at the Symposium on Surface Science & Nanotechnology -25th Anniversary of SSSJ Kansai- (SSSN-Kansai).
2016/11/1
Dr. Le Van Sang joined our Lab as Research Lecturer.
2016/10/1
Dr. Natsuko Sugimura joined our Lab.
2016/10/1
T. Maeda and Prof. Washizu will join The 4th International Conference on Molecular Simulation in 2016/10/23.
2016/5/14
Prof. Washizu will join 4th Malaysia-Japan Tribology Symposium in 2016/8/25 as an invited speaker.
2016/4/10
We won an award of Tribology Online 2015.
2016/1/7
A Happy new year! Prof. Washizu will join CECAM workshop on Interactions and Transport of Charged Species in Bulk and at Interfaces in 2016/7/4.
2015/10/1
Prof. Washizu will join Pacifichem2015 in 2015/12/20
2015/10/1
The web site is open!
2015/10/1
Prof. Washizu started the lab.

Welcome to Washizu Lab!

Our Materials Simulation Laboratory is located in the Computational Science Center Building on the Kobe Campus for Information Science, University of Hyogo. If you are interested in one of our research projects, please contact us.


2 Master Course Students won award at 6th World Tribology Congress (WTC2017).

In 19 Sep, H. Akiyama (M2) and M. Konishi (M2) made presentation and won the "Best Poster Award" in 6th World Tribology Congress (WTC2017) at Beijing, China. This conference is the largest conference in Tribology field, held every 4 years, like the Olympic game. Congratulations!

Invited Talk

This summer we made invited talks at The 8th Advanced Forum on Tribology 2017, Zhenjiang . The title was "Tribological Simulations for Carbon Based Materials". We will also make 3 presentations at 6th World Tribology Congress 2017 , Beijing.

Master Course Student won award at MJTS2017, Kuala Lumpur, Malaysia.

In 29 Aug, M. Konishi (M2) made presentation and won the "Best Poster Award" in 5th Malaysia-Japan Tribology Symposium (MJTS2017). Congratulations!

Master Course Students joined STLE2017 at Atlanta, GA, USA.

In 22 May, H. Akiyama (M2) and M. Konishi (M2) made presentations in STLE 2017 annual meeting. Thank you for kind discussions.

Student award

Mr. Maeda (MS student) won a " 2016 Student Award" from the Japanese Society of Tribologists. The title of the paper is "Mechanism of ultra-low friction of multilayer graphene studied by all atom molecular dynamics". Congratulation!

Invited Talk

This summer we made invited talks at CECAM workshop on Interactions and Transport of Charged Species in Bulk and at Interfaces (Vienna) and 4th Malaysia-Japan Tribology Symposium (Kuala Lumpur).

Paper award

We won an award of Tribology Online 2015. S. Kajita, M. Tohyama, H. Washizu, S. Ohmori, K. Watanabe, S Shikata, "Friction modification by shifting of phonon energy dissipation in solid atom", Tribology Online 10, (2) 156-161 (2015). https://www.jstage.jst.go.jp/article/trol/10/2/10_156/_pdf

Guide for Application for the graduate students on Master and Ph.D. Program in 2018.

We are looking for Master and PhD students to join the next generation of outstanding researchers in molecular simulation. The candidate must pass the entrance exam and the Japanese-Language Proficiency Test N2. Though the research advisor can teach in English, the candidate need to understand Japanese to study the usual lectures in the curriculum.

Recent Publications

Le Van Sang, A. Yano, S. Fujii, N. Sugimura,H. Washizu, "Coarse-grained model for spring friction study of micron-scale iron by smoothed particle hydrodynamics", EPL (Europhys. Lett.) 122, 2 (2018) 26004. pdf, pdf (arxiv)
This is the first paper of the colaboration with Dr. Le Van Sang, Mitsubishi Heavy Industry, and us. We propose numerical model to simulate micron-scale friction phenomena by bottom up simulation method from atomistic scale. We found the importance of surface force in perpendicular direction to the interface to the origin of friction.

T. Kinjo, H. Yoshida, H. Washizu, "Coarse-grained simulations of polyelectrolyte brushes using a hybrid model", Colloid Polym. Sci., 296(3), 441-449 (2018). pdf.
Polyelectrolyte brush are widely used for low friction system, binders for batteries. Studies on high charge fractions, however, are relatively rare dute to the complexity involving counterion condensation. We studied the structure of polyelectrolyte brushes using new simulation method based on DPD.

H. Washizu, T. Ohmori, A. Suzuki, "Molecular Origin of Limiting Shear Stress of Elastohydrodynamic Lubrication Oil Film Studied by Molecular Dynamics", Chem. Phys. Lett.,678, 1-4 (2017). pdf, pdf (arxiv)
The origin of "limiting shear stress" in elastohydrodynamic oil film is one of the most important open question in Tribology. Our MD simulation revealed that we don't need the idea "shear band" to explain the mechanism.

T. Maeda, H. Washizu, "Mechanism of ultra-low friction of multilayer graphene studied by all atom molecular dynamics", Microsyst Technol., (2017) doi: 10.1007/s00542-017-3398-5. pdf , pdf (free version)
"Thermal escape motion", an universal mechanism of ultra low friction of layered materials is confirmed by all-atom molecular dynamics. The job was done by my first master course student.


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