2010 Fiscal Year Final Research Report
Production of dense bulk samples by sintering metallic glassy and nanocrystalline powder and investigation of their general physical, mechanical and thermal properties
| Project Area | Microwave-Excited, High-Temperature Thermally Non-Equilibrium Reaction Fields |
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| Project/Area Number |
18070001
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
LOUZGUINE Dmitri 東北大学, 原子分子材料科学高等研究機構, 教授 (60302212)
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| Co-Investigator(Kenkyū-buntansha) |
SAIDA Junji 東北大学, 学際科学国際高等研究センター, 准教授 (20359540)
XIE Guoqiang 東北大学, 金属材料研究所, 准教授 (50422134)
NAKAMORI Yuko 東北大学, 金属材料研究所, 助教 (90359539)
IKEDA Kazutaka 東北大学, 金属材料研究所, 助教 (80451615)
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| Co-Investigator(Renkei-kenkyūsha) |
LI Song 東北大学, 原子分子材料科学高等研究機構, 研究員 (90451624)
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| Project Period (FY) |
2006 – 2010
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| Keywords | マイクロ波 / 金属ガラス / 粉末焼結 / 微細構造 / 機械的性質 / エネルギー / 水素 / 結晶化 |
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| Research Abstract |
Using a new custom-made single mode microwave irradiation machine (operated at 915 MHz) which allows electrical and magnetic field separation and is equipped with an alumina (Al_2O_3) press, production of the large-scale samples (30 mm in diameter and larger) of the metallic glasses, crystal-glassy and glassy-polymer composites as well as nanocrystalline dispersed glassy composites has been carried out in a vacuum and inert atmosphere. A theoretical explanation of microwave heating of metallic powders in microwaves using effective medium approximation for core-shell composite has been proposed. The hydrogen absorption behaviour, the structure change and dehydrogenation properties for metal hydrides and complex hydrides by microwave irradiation were investigated.
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