多相交流アーク中の酸化物ナノ粒子前駆体の動的挙動

Translated title of the contribution: Dynamic Behavior of Precursor of Oxide Nanoparticles in Multiphase AC Arc

縄田 祐志, 田中 学, 今辻 智幸, 橋詰 太郎, 渡辺 隆行

Research output: Contribution to journalArticle

Abstract

<p>The purpose of this study is to investigate the formation mechanism of aluminum oxide nanoparticles in thermal plasma. A multiphase AC arc was utilized as thermal plasma source to synthesize oxide nanoparticles. Dynamic behavior of the metal oxide vapor which is a precursor of oxide nanoparticles was successfully visualized by high-speed camera with appropriate band-pass filter system. According to spectroscopic measurements, transmission wavelength of band-pass filters were selected to be 670 nm for Al atomic line and 514.5 nm for AlO molecular spectra, respectively. The obtained results indicated that Al vapor was distributed in only upstream of plasma tail while AlO vapor was generated in downstream. These results experimentally elucidated that Al oxide nucleates at first and then Al oxide condenses to form Al<sub>2</sub>O<sub>3</sub> nanoparticles.</p>
Translated title of the contributionDynamic Behavior of Precursor of Oxide Nanoparticles in Multiphase AC Arc
Original languageJapanese
Pages (from-to)G113
Journal熱工学コンファレンス講演論文集
Volume2016
Issue number0
DOIs
Publication statusPublished - Oct 2016

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