Characterization of Reduction Products Generated by Laser Ablation of Alumina
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- YAMADA Shin
- Department of Aeronautics and Astronautics, The University of Tokyo
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- TANAKA Seiya
- Department of Aeronautics and Astronautics, The University of Tokyo
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- KOMURASAKI Kimiya
- Department of Aeronautics and Astronautics, The University of Tokyo
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- KAWASHIMA Rei
- Department of Aeronautics and Astronautics, The University of Tokyo
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- KOIZUMI Hiroyuki
- Department of Advanced Energy, The University of Tokyo
Bibliographic Information
- Other Title
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- アルミナのレーザーアブレーションにより生じた還元生成物の同定
- アルミナ ノ レーザーアブレーション ニ ヨリ ショウジタ カンゲン セイセイブツ ノ ドウテイ
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Abstract
Alumina reduction by laser ablation has been tested using a kW-class continuous-wave CO2 laser. The laser beam was focused on a sintered alumina rod and laser ablation occurred on the rod surface in a test chamber with argon ambient gas. The laser intensity was changed from 0.36 GW/m^2 to 1.8 GW/m^2 at the ambient pressure of 30 kPa to 150 kPa. A copper plate was set in front of the alumina rod to collect ablation products. As a result, white and black substances were adhered to the plate. By quantitative analysis using EDX (energy dispersive X-ray spectroscopy), mole fraction (Al:O) of these substances were found 2:2.8 and 2:2.3, respectively. These data suggest that these substances are alumina and oxygen-deficient alumina, respectively. Herewith, it was certified that reduction reaction occurs by laser ablation and phenomena in the ablation plume was estimated.
Journal
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- Applied Plasma Science
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Applied Plasma Science 26 (1), 33-38, 2018
Institute of Applied Plasma Science
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Keywords
Details 詳細情報について
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- CRID
- 1390007292691827840
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- NII Article ID
- 130008066886
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- NII Book ID
- AA12687461
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- ISSN
- 24351555
- 13403214
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- NDL BIB ID
- 029386753
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed