| Project/Area Number |
15K14196
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
成田 一人 大阪教育大学, 教育学部, 准教授 (50404017)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 結晶成長 / ファセット / 双晶 / 金属生産工学 / 電子・電気材料 / ファセット成長 |
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| Outline of Final Research Achievements |
A development of film deposition process without a cutting process is necessary due to the possession of silicon resources of solar cells. Therefore, a misty molten metal specimen using water, low melting point alloys and bismuth alloy, which has facet solidification and is similar to silicon, were fabricated and analyzed their microstructures. The pressure to pump molten metal influenced the square of the propellant gas velocity and density when the gas flow velocity was relatively high, but the suction power became low due to entrainment phenomenon and gas inflow, when the flow velocity was low. The thickness and the surface roughness of the formed specimen became unstable depending on the distance and angle from the nozzle. Furthermore, the microstructure became finer and homogenized at specimen edge positions, and it was thought that similar phenomena occurred in silicon specimen.
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