Formation mechanism of aligned microporous structures in the intermetallic thick films produced by microscopic reactive infiltration

• Project/Area Number: 19560740
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Metal making engineering
• Research Institution: Hokkaido University
• Principal Investigator: OHMI Tatsuya Hokkaido University, 大学院・工学研究科, 准教授 (90169061)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2007: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 融体・凝固 / 金属間化合物 / 多孔質組織 / マイクロチャンネル / 触媒担体 / 反応浸透 / 粉末冶金 / 液体焼結 / 液相焼結

Research Abstract

An intermetallic thick film with a peculiar aligned microporous structure often forms on the inner wall of the microchannel produced by a powder-metallurgical microchanneling process using nickel and aluminum. In this study, it was found that such a porous structure formed when the initial porosity of the powder compact was within a specific rage. It was also revealed that this structure was produced by two different mechanisms : pseudo-isothermal solidification of intermetallic compounds into the aluminum pool and solid state reactive diffusion of aluminum into the nickel powder region.

Research Products

• [Journal Article] Manabu Iguchi : Structure of Ni-Al intermetallic porous thick films produced by microscopic reactive infiltration (2010)
  • Author(s): Naoya Hayashi, Tatsuya Ohmi
  • Journal Title: Material Science Forum Vols. 631-632 Pages: 345-350
  • Peer Reviewed
• [Journal Article] Structure of Ni-Al intermetallic porous thick films produced by microscopic reactive infiltration (2010)
  • Author(s): Naoya Hayashi, Tatsuya Ohmi, Manabu Iguchi
  • Journal Title: Material Science Forum 631-632 Pages: 345-350
  • Peer Reviewed
• [Journal Article] Naoya Hayashi and Manabu Iguchi : Formation of Porous Intermetallic Thick Film by Ni-Al Microscopic reactive Infiltration (2008)
  • Author(s): Tatsuya Ohmi
  • Journal Title: Mater. Trans. 49 Pages: 2723-2727
  • Peer Reviewed
• [Journal Article] Formation of Porous Intermetallic Thick Film by Ni-Al Microscopic reactive Infiltration (2008)
  • Author(s): Tatsuya Ohmi, Naoya Hayashi and Manabu Iguchi
  • Journal Title: Mater. Trans 49 Pages: 2723-2727
  • NAID: 10024403662
  • Peer Reviewed
• [Presentation] CONTROL OF POROUS STRUCTURE OF NICKEL-ALUMINIDE MICROCHANNEL LINING (2009)
  • Author(s): T. Ohmi, N. Hayashi, M. Iguchi
  • Organizer: 6th International Conference on Porous Metals and Metallic Foams (MetFoam2009)
  • Place of Presentation: Bratislava
  • Year and Date: 2009-09-02
• [Presentation] CONTROL OF POROUS STRUCTURE OF NICKEL-ALUMINIDE MICR OCHANNEL LINING (2009)
  • Author(s): T.Ohmi, N.Hayashi, M.Iguchi
  • Organizer: 6th International Conference on Porous Metals and Metallic Foams (MetFoam 2009)
  • Place of Presentation: Bratislava、Slovenska
  • Year and Date: 2009-09-02
• [Presentation] Ni-Al系多孔質金属問化合物厚膜の形成 (2009)
  • Author(s): 林直哉、大参達也、井口学
  • Organizer: 日本鉄鋼協会・日本金属学会両北海道支部合同平成20年度冬季講演大会
  • Place of Presentation: 室蘭工業大学(室蘭)
  • Year and Date: 2009-01-23
• [Presentation] Structure Control of Ni-Al Intermetallic Porous Thick Film Produced by Microscopic Reactive Infiltration (2008)
  • Author(s): Naoya Hayashi, Tatsuya Ohmi, Manabu Iguchi
  • Organizer: The 3rd International Symposium on Advanced Fluid/Solid Science and Technology in Experimental Mechanics (ISEM2008)
  • Place of Presentation: Tainan
  • Year and Date: 2008-12-10
• [Presentation] Structure Control of Ni-Al Intermetallic Porous Thick Film Produced by Microscopic Reactive Infiltration (2008)
  • Author(s): Naoya Hayashi, Tatsuya Ohmi, Manabu Iguchi
  • Organizer: The 3rd International Symposium on Advanced Fluid/Solid Science and Technology in Experimental Mechanics
  • Place of Presentation: National Cheng Kung University, Tainan, Taiwan
  • Year and Date: 2008-12-10
• [Presentation] Structure of Ni-Al intermetallic porous thick films produced by microscopic reactive infiltration (2008)
  • Author(s): Naoya Hayashi, Tatsuya Ohmi, Manabu Iguchi
  • Organizer: The 10th International Symposium on Multiscale, Multifunctional & Functionally Graded Materials
  • Place of Presentation: Sendai International Center (Sendai)
  • Year and Date: 2008-09-24
• [Presentation] Ni-Al系多孔質金属問化合物厚膜の等温成長 (2008)
  • Author(s): 林直哉、大参達也、井口学
  • Organizer: 日本金属学会・日本鉄鋼協会両北海道支部合同平成20年度夏季講演大会
  • Place of Presentation: 北海道大学学術交流会館(札幌)
  • Year and Date: 2008-07-24
• [Presentation] 微視的反応浸透によるNi-Al系多孔質金属間化合物厚膜の形成条件 (2008)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本実験力学会2008年度年次講演会
  • Place of Presentation: 札幌
  • Year and Date: 2008-07-02
• [Presentation] 微視的反応浸透によるNi-Al系多孔質金属間化合物厚膜の形成条件 (2008)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本実験力学会2008年度年次講演会
  • Place of Presentation: 北海道大学学術交流会館(札幌)
  • Year and Date: 2008-07-02
• [Presentation] 微視的反応浸透によるNi-Al系多孔質金属間化合物厚膜の形成 (2008)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本鉄鋼協会第155回春季講演大会
  • Place of Presentation: 東京
  • Year and Date: 2008-03-27
• [Presentation] 微視的反応浸透によるNi-Al系多孔質金属間化合物厚膜の形成 (2008)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本鉄鋼協会第155回春季講演大会
  • Place of Presentation: 武蔵工業大学(東京都世田谷区)
  • Year and Date: 2008-03-27
• [Presentation] Ni-Al系多孔質金属間化合物厚膜の形成に及ぼすAl線径の影響 (2008)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本金属学会・日本鉄鋼協会両北海道支部合同平成19年度冬季講演大会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2008-01-24
• [Presentation] Structure of Ni-Al intermetallic porous thick films produced by microscopic reactive infiltration (2008)
  • Author(s): Naoya Hayashi, Tatsuya Ohmi, Manabu Iguchi
  • Organizer: The 10th International Symposium on Multiscale, Multifunctional & Functionally Graded Materials
  • Place of Presentation: Sendai
• [Presentation] Ni-Al系反応浸透による多孔質金属間化合物厚膜の形成条件 (2007)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本金属学会2007年秋期 (第141回) 講演大会
  • Place of Presentation: 岐阜
  • Year and Date: 2007-09-20
• [Presentation] Ni-Al系反応浸透による多孔質金属間化合物厚膜の形成条件 (2007)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本金属学会2007年秋期(第141回)講演大会
  • Place of Presentation: 岐阜大学(岐阜市)
  • Year and Date: 2007-09-20
• [Presentation] 微視的反応浸透によるマイクロチャンネル形成と機能性ライニング (2007)
  • Author(s): 大参達也, 松浦清隆, 井口学
  • Organizer: 日本実験力学会2007年度年次講演会
  • Place of Presentation: 東京
  • Year and Date: 2007-08-08
• [Presentation] Ni-Al系多孔質金属間化合物厚膜の形成過程 (2007)
  • Author(s): 林直哉, 大参達也, 井口学
  • Organizer: 日本鉄鋼協会・日本金属学会両北海道支部合同平成19年度夏季講演大会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2007-07-20