Determination of Optimum Composition for Hydrogen Absorption Alloys by Hydrogen Micro-Imaging System
| Project/Area Number |
13450280
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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 | MURORAN INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
SAITOH Hideyuki Muroran Institute of Technology, Faculty of Engineering, Associate Professor, 工学部, 助教授 (00235061)
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| Project Period (FY) |
2001 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥11,500,000 (Direct Cost: ¥11,500,000)
Fiscal Year 2002: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2001: ¥10,300,000 (Direct Cost: ¥10,300,000)
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| Keywords | Hydrogen Absorption Alloys / Tritium / Vanadium / Titanium / Imaging Plate / Hydrogen Diffusion |
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| Research Abstract |
The purpose of the research is to determine the optimum composition of hydrogen absorption alloy using hydrogen micro-imaging system, and to develop high performance hydrogen absorption alloy.
The specimens were V-Cr-Ti alloys and Ti-Cr alloys with BCC / Laves two-phase structure. The microstructures in these alloys were controlled by changing both the composition and heat treated condition of the alloys. The relation between the microstructure and hydrogen distribution was investigated by the tritium radioluminography. The hydrogen distribution is sensitive to the difference of the composition in local area and the microstructure. Hydrogen concentration in the Laves phase is higher at the initial stage of hydrogen penetration into the alloy. However, hydrogen concentration in the BCC phase increases as the enhancement of hydrogen content in the alloys. I have developed a Ti-Cr hydrogen absorption alloy with high performance hydrogen capacity up to 3.5 mass% hydrogen content.
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Report
(3 results)
Research Products
(11 results)
