Development of Chemical Vacuum Pump usingNitrogen Absorption Nano-Materials
| Project/Area Number |
17360369
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Metal making engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
ISHIHARA Keiichi Kyoto University, Graduate Schcol of Energy Science, Professor (30184550)
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| Co-Investigator(Kenkyū-buntansha) |
OKUMURA Hideyuki Kyoto University, Graduate School of Energy Science, Associate Professor (80362573)
YAMASUE Eiji Kyoto University, Graduate School of Energy Science, Assistant Professor (90324673)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥15,710,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥510,000)
Fiscal Year 2007: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2006: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2005: ¥10,800,000 (Direct Cost: ¥10,800,000)
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| Keywords | Nitrogen gas absorption / Nanostructure / Mechanical milling / Non-equilibrium / Chemical vacuum pump / メカニカルアロイング / リチウム合金 / 窒化 / 酸化 / 真空ポンプ |
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| Research Abstract |
The purpose of this study is to develop a handy "Chemical Vacuum Pump" which evacuates from atmospheric pressure to vacuum. In the first year, the Li based alloys, which were produced by mechanical alloying with Si, Cu and Fe, were investigated. For the case of Li-Fe alloy, powders quickly absorb nitrogen gas. However, the amount of absorbed gas is limited, since Li is consumed by the reducing reaction with ion oxides covering the iron powder surface. In the second year, to improve the efficiency, the mechanical milling of Li with oxides which is more stable than lithium oxides were carried out. Thus, the powders milling with alumina and magnesia showed very active reactivity with nitrogen gas. Especially, Li-alumina alloy can absorb air (nitrogen and oxygen), which has not been reported before. In the last year, we also investigated nitrides. In the case of LiaN, it also reacts with oxygen gas showing two stage reactions, much higher than with nitrogen gas. The reason of this characteristic is attributable to the phase transition from alpha-Lis/1 to beta-LiaN and the formation of complex of Li-O-N.
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Report
(4 results)
Research Products
(34 results)
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[Journal Article] Mechanical alloying, nitrogen storage and magnetization of Ca-Co powder2007
Author(s)
H., Okumura, F., N., Ishikawa, Y., Morotomi, E., Yamasue, K., N., Ishihara
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Journal Title
Materials Science and Engineering A Vol.449-451
Pages: 1123-1126
Description
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[Journal Article] Mechanical milling of Fe-Li and Cu-Li systems and their nitrogen absorption properties2007
Author(s)
K., N., Ishihara, K., Irie, F., Kubo, E., Yamasue, H., Okumura
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Journal Title
Materials Science and Engineering A Vol.449-451
Pages: 1067-1070
Description
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[Journal Article] Mechanical Alloying of Lithium-base Systems2007
Author(s)
K., N., Ishihara, F., Kubo, K., Irie, K., Shichi, E., Yamasue, H., Okumura
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Journal Title
Journal of Alloys and Compounds Vol.434-435
Pages: 542-545
Description
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[Presentation] Mechanical Alloying of Li-Al2O3, MgO, LiaN systems2008
Author(s)
Tomomichi, Yokoi, Eiji, Yamasue, Hideyuki, Okumura, Keiichi, N., Ishihara, Chishiro, Michioka, Kazuyoshi, Yoshimura
Organizer
Japanese Society of Powder Metallurgy, Waseda University
Year and Date
2008-05-28
Description
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[Presentation] Nitrogen gas absorption properties of Li-Mgo and Li-Al203 fine mixture produced by mechanical milling2006
Author(s)
Tomomichi, Yokoi, Eiji, Yamasue, Hideyuki, Okumura, Keiichi, N., Ishihara
Organizer
Japanese Society of Powder Metallurgy, Waseda University, 2006, May
Description
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[Presentation] Ishihara, Chishiro Michioka, Kazuyoshi Yoshimura On the gas absorption ability of mechanically-milled Li-LiaN powder2006
Author(s)
Tomomichi, Yokoi, Eiji, Yamasue, Hideyuki, Okumura, Keiichi, N
Organizer
Japanese Society of Powder Metallurgy, Osaka University Convention Center
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Mechanical Alloying of Lithium-base Systems2005
Author(s)
Keiichi N. Ishihara, Fumie Kubo, Kohei Irie, Kazuyoshi Shichi, Eiji Yamasue and Hideyuki Okumura
Organizer
12th International Symposium on Metastable and Nano Materials(ISMANAM2005)
Place of Presentation
Paris, France
Description
「研究成果報告書概要(和文)」より
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[Presentation] Mechanical Alloying of Lithium-base Systems2005
Author(s)
Keiichi, N., Ishihara, Fumie, Kubo, Kohei, Irie, Kazuyoshi, Shichi, Eiji, Yamasue, Hideyuki, Okumura
Organizer
12th International Symposium on Metastable and Nano Materials (ISMANAM2005), Paris
Place of Presentation
France
Description
「研究成果報告書概要(欧文)」より
Related Report
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