2011 Fiscal Year Final Research Report
Multi-Physics Simulation of Powder Jet Deposition and Optimum Design of the Powder
| Project/Area Number |
21246024
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KONNO Toyohiko 東北大学, 金属材料研究所, 教授 (90260447)
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| Project Period (FY) |
2009 – 2011
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| Keywords | パウダージェットデポジション / 高速粒子衝突 / 成膜 / 粉体表面改質 / 分級 / 平滑粒子法 / 分子動力学法 |
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| Research Abstract |
Material adhesion phenomenon with high-speed collision of powders onto a substrate was investigated through the multi-physics simulations such as Smoothed Particle Hydrodynamics method and Molecular Dynamics method. As the results of the visualization, it was clear that the powders after a collision on the substrate were crushed to finer particles of the 10 nm order within a short time of 10 ns, and were promptly recombined by Coulomb force to form the film. We applied this phenomenon to a silicon cathode film formation for rechargeable batteries for next-generation hybrid cars. It demonstrated the excellent characteristics of charge and discharge cycle.
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