Innovative planar thermal plasma jet generated by diode-rectified AC arc for rapid surface treatment

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K03808
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 14030:Applied plasma science-related
• Research Institution: Kyushu University
• Principal Investigator: Tanaka Manabu 九州大学, 工学研究院, 准教授 (10707152)
• Co-Investigator(Kenkyū-buntansha): 渡辺 隆行 九州大学, 工学研究院, 教授 (40191770)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 熱プラズマ / 交流アーク / プラズマ診断 / 表面処理 / 高速処理

Outline of Final Research Achievements

The purpose of this research is to develop innovative planar thermal plasma jet for rapid surface treatment. A new thermal plasma source achieves planar thermal plasma jet, has been successfully developed by diode-rectified AC arc system under atmospheric pressure. This indicates that one-dimensional plasma source can be stably sustained by developed technique. Experimental results with the developed system suggested that the planar thermal plasma jet is a promising plasma source for rapid surface treatment of heating and reduction of metal oxides.

Free Research Field

熱プラズマ理工学

Academic Significance and Societal Importance of the Research Achievements

本申請研究は，ダイオード整流型の交流アーク発生システムを独自開発し，それに基づく高速表面処理プロセスの実験的検討を行ったものである．熱プラズマ流が有する1万度の熱流体をプレーナー状に制御することで，高速の表面処理（加熱，還元・酸化・窒化等の表面反応）プロセスを提供とするという，学術的にも産業的にも新規性，応用性，発展性が大きいと判断できる．