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 *help |
¥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.
|
Report
(4 results)
Research Products
(21 results)
