| Project/Area Number |
18360064
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 |
KURIYAGAWA Tsunemoto Tohoku University, Graduate school of Engineering, Professor (90170092)
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| Co-Investigator(Kenkyū-buntansha) |
YAN Jiwang Graduate school of Engineering, 大学院・工学研究科, Associate Professor (40323042)
YOSHIHARA Nobuhito Graduate school of Engineering, 大学院・工学研究科, Assistant Professor (80374958)
KUBO Momoji Graduate school of Engineering, 大学院・工学研究科, Professor (90241538)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥16,280,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2007: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2006: ¥11,600,000 (Direct Cost: ¥11,600,000)
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| Keywords | Powder Jet Deposition / Nano particle / Molecular Dynamics / Flow Dynamics / PJD / 厚膜 / 付着現象ダイナミクス / 大規模分子動力学法 / 精密分散 / 精密分級 / 精密噴射 |
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| Research Abstract |
In this study, accelerated ceramics particle, whose diameter is between several ten and several hundreds nano-meter order, is sprayed to the workpiece on purpose to create film. This film creation method is called nano-particle jet deposition (PJD). gas-particle flow adjacent to the workpiece is measured by the PIV and deposition dynamics is estimated utilizing the FEM and MD simulation. Conclusions of this research is as follow.
・Flow rate of particle sprayed by the PJD device can be controlled between 200~310m/s. In the case the flow rate is 200~275m/s, alumina particles (diameter: 2μm) remove the soda glass.
・It is found that there is transition condition from deposition to removal. And each size of particle has the different transition condition.
・When the particles hit the workpiece, particles are fractured.
・MD simulation indicate that the optimum flow rate is 205~275m/s.
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