2014 Fiscal Year Final Research Report
Production of Amorphous Fine-particle Using Arc Discharge in Liquid and Application for Catalyst
| Project/Area Number |
24760598
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Material processing/treatments
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| Research Institution | Kanagawa University (2013-2014)
Osaka University (2012) |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 金属ガラス / アモルファス合金 / 微粒子 / 水中アーク |
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| Outline of Final Research Achievements |
Amorphous fine-particles of Pd-Cu-Ni-P and (Cu-Zr)Pd were produced by arc discharge in water. In this process a high temperature arc was used to melt and vaporized the electrode which were made by the target alloy. This technique has many special characteristics, such a high enthalpy density and extremely high heating rate and cooling rate. These characteristics are also suite for preparation of amorphous alloy fine-particle.
As a result of the arc process, amorphous fine-particles of Pd-Cu-Ni-P and (Cu-Zr)Pd were successfully obtained, although the crystallized particles were slightly contained. The fine-particles were classified depending on the particle size into two, micron particle (-several μm) and nano particle (-several nm). It was found by the structure analyses that the nano particle was produced by the process that the electrode partially vaporized by the arc and then the vapor was quenched and aggregated by the surrounded water.
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| Free Research Field |
生産工学・加工学
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