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- CHO Shinatora
- Department of Aeronautics and Astronautics, The University of Tokyo
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- YOKOTA Shigeru
- Department of Aeronautics and Astronautics, The University of Tokyo
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- HARA Kentaro
- Department of Aeronautics and Astronautics, The University of Tokyo
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- TAKAHASHI Daisuke
- Department of Aeronautics and Astronautics, The University of Tokyo
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- ARAKAWA Yoshihiro
- Department of Aeronautics and Astronautics, The University of Tokyo
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- KOMURASAKI Kimiya
- Department of Advanced Energy, The University of Tokyo
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- KOBAYASHI Akira
- Joining & Welding Res. Inst. Osaka University
Abstract
In order to improve Hall thruster's lifetime performance, A new lifetime evaluation method, lifetime estimation using multilayered coated chips was developed for channel wall erosion rate distribution measurement. This method uses small chips coated with alternate channel wall material and marker. By detecting the marker emission as a signal of erosion progress, this method enables direct and rapid erosion rate distribution measurements. In this study, the capability of this new method for erosion rate distribution measurement was tested and validated. Multilayer coated chips of two kinds using different marker metals were embedded into the acceleration channel wall. The channel-wall erosion rate distribution was then measured. The measured erosion rates were, respectively, 0.90 nm/s and 0.75 nm/s at 2 mm and 4 mm upstream from the channel exit.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 8 (ists27), Pb_51-Pb_54, 2010
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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Details 詳細情報について
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- CRID
- 1390282680297748480
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- NII Article ID
- 130000450575
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- ISSN
- 18840485
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed