2013 Fiscal Year Final Research Report
The study on phase diagram of magnetic materials and alloys under high magnetic fields for development of new functional materials
| Project/Area Number |
22360285
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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 | Kagoshima University |
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Principal Investigator |
KOYAMA Keiichi 鹿児島大学, 理工学研究科, 教授 (70302205)
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| Co-Investigator(Kenkyū-buntansha) |
ITO Masakazu 鹿児島大学, 理工学研究科, 准教授 (40294524)
HIROI Masahiko 鹿児島大学, 理工学研究科, 教授 (80212174)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 強磁場 / 平衡状態図 / 磁場中合成 / 磁場制御 / 機能性材料 |
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| Research Abstract |
Differential thermal analysis was carried out for ferromagnetic material MnBi in the temperature range 300-773K in magnetic fields up to 45 T. The decomposition temperature Tt (MnBi -> Mn1.08 Bi + liquid) increases from 632 K (at a zero field) to 714 K by applying a magnetic field of 45 T. In addition, the Bi-Mn phase diagram at 18 T was obtained, which quite different from that at a zero magnetic field. We also obtained the Fe-C steel phase diagram under high magnetic fields over 18 T. The thermodynamic calculations of the Bi-Mn binary phase diagram in high magnetic fields are carried out by the Computer Coupling of Phase Diagrams (CALPHAD) method. The calculated results show the significant change of the Bi-Mn phase diagram under magnetic fields, which were in good agreement with the experimental results of in-field thermal analysis performed by our research group.
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Research Products
(58 results)
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[Journal Article] Magnetic properties of Mn_2Sb_<1-x>Z_x (Z = Ge, Sn)2013
Author(s)
K. Koyama, D. Shimada, H. Orihashi, D. Mitsunaga, M. Hiroi, K. Matsubayashi, Y. Uwatoko, R. Onodera, S. Kimura, and K. Takahashi
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Journal Title
Rep. Fac. Sci.
Volume: Vol.46
Pages: 37-42
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[Presentation] Mn_2Sb_<1-x>Z_x(Z=Ge, Sn, 0.05 <= x <= 0.2)の磁気特性2013
Author(s)
島田大輔, 折橋広樹, 満永大輔, 廣井政彦, 小山佳一, 小野寺礼尚, 三井好古, 木村尚次郎, 高橋弘紀, 池田大地, 安達義也
Organizer
日本金属学会春期講演大会
Place of Presentation
東京
Year and Date
20130326-29
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