2011 Fiscal Year Final Research Report
Discharge characteristics of in-liquid plasma
| Project/Area Number |
20360098
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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 |
Thermal engineering
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| Research Institution | Ehime University |
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Principal Investigator |
NOMURA Shinfuku 愛媛大学, 大学院・理工学研究科, 教授 (20263957)
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| Co-Investigator(Kenkyū-buntansha) |
MUKASA Shinobu 愛媛大学, 理工学研究科, 助教 (20284391)
TOYOTA Hiromichi 愛媛大学, 理工学研究科, 准教授 (00217572)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMASHITA Hiroshi 愛媛大学, 理工学研究科, 准教授 (00182501)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 熱工学 / プラズマ加工 / プラズマ・核融合 / ナノ材料 / 水素 |
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| Research Abstract |
The behavior of bubbles and discharge characteristics generated by a high frequency in-liquid plasma was investigated in liquids under higher pressure than atmospheric pressure. The degree of ionization of the in-liquid plasma is approximately 0. 1% at 0. 4MPa, as estimated from the electron density, however, the electrons remain in the plasma reaction field within the bubbles where temperatures of several thousand degrees are created as a result of the harsh vibration by the high frequencies. The in-liquid plasma maintains a high superheated because a boiling phenomenon in the in-liquid plasma uses the plasma itself as a heating source. Metric nanoparticles can be synthesized by feeding a metallic rod a source material into in-liquid plasma.
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