| Project/Area Number |
11450277
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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 |
Material processing/treatments
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| Research Institution | THE UNIVERSITY OF SHIGA PREFECTURE |
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Principal Investigator |
KIKUCHI Shiomi THE UNIVERSITY OF SHIGA PREFECTURE, DEPARTMENT OF MATERIALS SCIENCE, PROFESSOR, 工学部, 教授 (70026326)
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| Co-Investigator(Kenkyū-buntansha) |
MIYAMURA Hiroshi THE UNIVERSITY OF SHIGA PREFECTURE, DEPARTMENT OF MATERIALS SCIENCE, ASSOCIATE PROFESSOR, 工学部, 助教授 (90275165)
MAZAKI Naoko RESEARCH INSTITUTE FOR APPLIED SCIENCE, DIVISION 1, RESEARCHER, 第一研究室, 研究員 (40280672)
KUEAHARA Hideyuki RESEARCH INSTITUTE FOR APPLIED SCIENCE, DIVISION 1, CHIEF RESEARCHER, 第一研究室, 室長 (90132795)
NAGAE Masahiro OKAYAMA UNIVERSITY, DEPARTMENT OF ENVIRONMENTAL CHEMISTRY AND MATERIALS, 大学院・自然科学研究所, 助手 (60304341)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 2000: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 1999: ¥10,800,000 (Direct Cost: ¥10,800,000)
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| Keywords | LAMINATES / REPEATED ROLLING / NITRIDING / IRON-NITRIDES / CRYSTAL ORIENTATION / MAGNETIC REGISTANCE / NANO-MATERIALS / CRYSTAL STRUCTURE |
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| Research Abstract |
A combination of repeated rolling and nitriding process using foil metallurgy can fabricate metal/nitrides super-laminates with nano-scale layer spacing. At first Ag/Fe super-laminates were made by repeat process of diffusion bonding and rolling using a starting material consisting of hundreds of silver and iron foils stacked mutually. The structure of the Ag/Fe super-laminates were investigated by X-ray diffraction, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and mossbauer spectroscopy. The layer structure was maintained after repeated rolling and both silver atoms and iron atoms near the interface between Ag and Fe layers did not make the formation of solid solution mutually. The crystal orientation of Ag layers was influenced by the rolling texture formation of Fe layers. By nitriding the Ag/Fe super-laminates, Ag/Fe-nitrides super-laminates can be successfully synthesized. The nitrided laminates were characterized by SEM, EDS and X-ray diffraction for the microstructure and the identification of nitrides.
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