2009 Fiscal Year Final Research Report
Development of New Functional Alloys with Heusler-type Structure-Their Phase Stability and Physical Properties-
| Project/Area Number |
18106012
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural/Functional materials
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| Research Institution | Tohoku University |
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Principal Investigator |
KAINUMA Ryosuke Tohoku University, 多元物質科学研究所, 教授 (20202004)
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| Co-Investigator(Kenkyū-buntansha) |
UMETSU Rie 東北大学, 多元物質科学研究所, 助教 (60422086)
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| Co-Investigator(Renkei-kenkyūsha) |
ISHIDA Kiyohito 東北大学, 大学院・工学研究科, 教授 (20151368)
OHNUMA Ikuo 東北大学, 大学院・工学研究科, 准教授 (20250714)
OIKAWA Katsunari 東北大学, 大学院・工学研究科, 准教授 (70356608)
FUJITA Asaya 東北大学, 大学院・工学研究科, 准教授 (10323073)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 状態図 / 規則-不規則変態 / 磁性形状記憶 / 磁気冷凍 / ハーフメタル |
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| Research Abstract |
Phase stabilities and magnetic properties of the Co- and Ni-based functional Heusler alloys showing magnetic shape memory effect, magnetocaloric effect and half-metallic properties were investigated. By the present project, some new magnetic shape memory alloys, such as NiCoMnAl, FeMnGa and PdFeIn, have been developed and the magnetocaloric properties for the NiCoMnIn alloys have been evaluated. Furthermore, a new halh-metallic magnet Co_2(Ti, Fe)Al showing an excellent half-metallicity has been proposed.
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