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ファイル | 記述 | サイズ | フォーマット | |
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j.powtec.2007.11.041.pdf | 409.21 kB | Adobe PDF | 見る/開く |
タイトル: | Characterizing the effect of substrate surface roughness on particle–wall interaction with the airflow method |
著者: | Jiang, Yanbin Matsusaka, Shuji https://orcid.org/0000-0001-9048-929X (unconfirmed) Masuda, Hiroaki Qian, Yu |
著者名の別形: | 松坂, 修二 |
キーワード: | Particle–wall interaction Adhesion Surface roughness Airflow method Entrainment |
発行日: | 10-Sep-2008 |
出版者: | Elsevier |
誌名: | Powder Technology |
巻: | 186 |
号: | 3 |
開始ページ: | 199 |
終了ページ: | 205 |
抄録: | The effect of surface roughness on particle–wall interaction was studied by the airflow method. Five kinds of monodispersed spherical particles (Dp50 = 11-41 μm) and six test pieces with different surface roughness (Ra = 0.01-1.64 μm) were used in the experiments. The particles were dispersed on the test pieces to form a monolayer, and entrained in a rectangular air channel. The air velocity increased at a constant rate, and the entrained particles were detected with a laser dust monitor. Microscopic observations showed that particle entrainment occurred in discrete and intermittent events during experiment, thus a statistical parameter, i.e. the particle entrainment efficiency as a function of the air velocity, was defined for evaluating the particle–wall interaction force distribution. The experimental results showed that the air velocity for particle entrainment decreases with the increase of the surface roughness within submicron-scale and reaches a lower limit, while increases to some extent for micron-scale surface roughness. It was also found that the effect of the substrate surface roughness depends on the particle diameter. |
著作権等: | Copyright © 2007 Elsevier B.V. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/85003 |
DOI(出版社版): | 10.1016/j.powtec.2007.11.041 |
関連リンク: | http://hdl.handle.net/2433/78383 |
出現コレクション: | 学術雑誌掲載論文等 |
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