| Project/Area Number |
25630297
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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 |
Composite materials/Surface and interface engineering
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
KONNO Takeshi 独立行政法人物質・材料研究機構, 先端材料プロセスユニット, 主幹研究員 (50354171)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 電子・電気材料 / 材料加工・処理 / 微小溶接 / グロー放電 / マイクロ・ナノデバイス / 高輝度フィラメント / SEM / 高電圧放電 / フィラメント / 熱電子放出 / 電子線源 / タングステン合金 |
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| Outline of Final Research Achievements |
In this study, we have successfully fabricated tungsten filament for thermion emitting electron guns. Two tungsten/tungsten alloy wires of 50μm were welded by non-contact discharge welding method and make a reversed V shape structure. The point radius was smaller than that of the common hairpin filament. It will, therefore, expect to show a good thermal electron emission property. The reversed V shape structure was mounted to an SEM instead of hairpin filament. Good images were obtained comparing with those taken by the same SEM mounted a common hairpin filament.
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