| Project/Area Number |
19360315
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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 |
Structural/Functional materials
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| Research Institution | Nagoya University |
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Principal Investigator |
YUKAWA Hiroshi Nagoya University, 大学院・工学研究科, 助教 (50293676)
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| Co-Investigator(Kenkyū-buntansha) |
NAMBU Tomonori 鈴鹿工業高等専門学校, 材料工学科, 准教授 (10270274)
MATSUMOTO Yoshihisa 大分工業高等専門学校, 機械工学科, 教授 (40219522)
MORINAGA Masahiko 名古屋大学, 大学院・工学研究科, 教授 (50126950)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2008: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2007: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
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| Keywords | 水素精製 / 水素透過合金 / ニオブ合金 / 水素透過能 / 耐水素脆性 / 水素透過膜 / ニオブ / 固溶水素濃度 / 合金効果 / 合金設計 |
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| Research Abstract |
The hydrogen solubility, hydrogen permeability and hydrogen embrittlement of group 5 metal (Nb, V, Ta) based hydrogen permeable alloys have been investigated quantitatively. Also, the hydrogen permeability has been studied in view of hydrogen chemical potential. From these results, a concept for alloy design has been proposed in order to satisfy both high hydrogen permeability and strong resistance to hydrogen embrittlement. Following this concept, Nb-W, Nb-Ru and Nb-W-Mo alloys with bcc single solid solution phase have been designed and developed that phases 4～5 time higher hydrogen permeability than currently used Pd-based alloy membrane without showing any hydrogen embrittlement.
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