Time Variation of Area and Number of Vacuum Arc Cathode Spot

カテゴリ: 研究会(論文単位)

論文No: ED15067

グループ名: 【A】基礎・材料・共通部門 放電研究会

発行日: 2015/07/09

タイトル(英語): Time Variation of Area and Number of Vacuum Arc Cathode Spot

著者名: Arisa Takahashi(Tokyo City University),Shinji Yamamoto(Tokyo City University),Toru Iwao(Tokyo City University)

著者名(英語): Arisa Takahashi(Tokyo City University),Shinji Yamamoto(Tokyo City University),Toru Iwao(Tokyo City University)

キーワード: ｖａｃｕｕｍ　ａｒｃ|ｃａｔｈｏｄｅ　ｓｐｏｔ|ｏｘｉｄｅ　ｌａｙｅｒ　|ｃｕｒｒｅｎｔ　ｄｅｎｓｉｔｙ|ｎｕｍｂｅｒ|ａｒｅａ|vacuum arc |cathode spot|oxide layer |current density|number|area

要約(日本語): The surface treatment is expected for promotion of circulating production. Vacuum arc technology is one of the dry processing, and it can treat the surface very fast. A cathode spot can evaporate the oxide layer and form a roughness. However, the influence of the parameter of the cathode spot with changing the current remains unclear. As described herein, in order to know the split process, the time variation of the number and area of cathode spots were measured with changing the current. Experiments were performed using a SS400 cathode and a cylindrical copper anode. A high-speed video camera recorded the cathode spot movement. Then, the obtained images were analyzed using plasma image processing. As a result, the parameter of the cathode spot was normalized by the current density and number. In addition, cathode spot had appropriate number and area with the time variation.

要約(英語): The surface treatment is expected for promotion of circulating production. Vacuum arc technology is one of the dry processing, and it can treat the surface very fast. A cathode spot can evaporate the oxide layer and form a roughness. However, the influence of the parameter of the cathode spot with changing the current remains unclear. As described herein, in order to know the split process, the time variation of the number and area of cathode spots were measured with changing the current. Experiments were performed using a SS400 cathode and a cylindrical copper anode. A high-speed video camera recorded the cathode spot movement. Then, the obtained images were analyzed using plasma image processing. As a result, the parameter of the cathode spot was normalized by the current density and number. In addition, cathode spot had appropriate number and area with the time variation.

原稿種別: 英語

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