タイトル | Influence of Trace Impurities on Oxygen Activity for High Purity Nitrogen Gas Processed by Zirconia Oxygen Pump |
DOI | info:doi/10.15011/jasma.33.330214 |
著者(日) | 小澤, 俊平; 川野邉, 勇樹; 栗林, 一彦; 長澤, 亨 |
著者(英) | Ozawa, Shumpei; Kawanobe, Yuki; Kuribayashi, Kazuhiko; Nagasawa, Toru |
著者所属(日) | 千葉工業大学; 千葉工業大学; 千葉工業大学; キヤノンマシナリー株式会社 |
著者所属(英) | Chiba Institute of Technology; Chiba Institute of Technology; Chiba Institute of Technology; Canon Machinery Inc. |
発行日 | 2016-04-30 |
発行機関など | Japan Society of Microgravity Application (JASMA) 日本マイクログラビティ応用学会(JASMA) |
刊行物名 | International Journal of Microgravity Science and Application (IJMSA) |
巻 | 33 |
号 | 2 |
開始ページ | 330214-1 |
終了ページ | 330214-4 |
刊行年月日 | 2016-04-30 |
言語 | eng |
抄録 | Oxygen activity (a(sub O2)) of high purity nitrogen gas was controlled and monitored by a zirconia oxygen pump and sensors operated at 600 C. It was confirmed that the oxygen pump and sensors can control the a(sub O2) at 600 C precisely. Solid metal samples of copper, nickel and iron were actually oxidized under the processed gas when the indicated value of the a(sub O2) is higher than the equilibrium oxygen activity for formation of the metal oxides. When the indicated value of a(sub O2) is lower than the equilibrium oxygen activity for formation of the oxides, the samples were reduced. The processed gas showed a temperature reliance induced from the gas phase equilibrium between the H2 and H2O gases, which were contained in the source gas as an impurity. |
内容記述 | Physical characteristics: Original contains color illustrations 形態: カラー図版あり |
キーワード | Zirconia oxygen pump; Zirconia oxygen sensor; Oxygen activity; Solid electrolyte; Gas phase equilibrium |
資料種別 | Journal Article |
NASA分類 | Life Sciences (General) |
ISSN | 0915-3616 |
NCID | AN10537663 |
SHI-NO | AA1640102000 |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/571319 |