2020 Fiscal Year Research-status Report
Evolution of new magnetic materials with ultrahigh coercivity
| Project/Area Number |
19K15391
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2019-04-01 – 2022-03-31
|
| Keywords | SmFe12 / Rare Earth / Transition Metal / Magnetic Pinning |
|---|
| Outline of Annual Research Achievements |
Ultrafine (Sm,Zr)(Fe,Co,Ti)12 mesoscopic magnetic particles (MMPs) with controllable grain-size and composition have been synthesized. Importantly, appropriate magnetically-hard pinning shells could be introduced to the MMPs, serving as intergranular magnetic pinning boundaries. As a result, the MMPs exhibited ever-high coercivity of 1.6 T. This result is a breakthrough in the development of SmFe12 based permanent magnet materials.
|
| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
The research progress well regards the research objective and implemented plan in 2020, as follows:
(1) Controlling microstructure of the Sm(Fe1-xCox)12-yTiy MMPs
(2) Elucidating and understanding microstructure and magnetic properties of the Sm(Fe1-xCox)12-yTiy MMPs.
|
| Strategy for Future Research Activity |
The research is planned as follows:
(1) Further optimization of microstructure of Sm(Fe1-xCox)12-yTiy MMPs,
(2) Fabrication of anisotropic Sm(Fe1-xCox)12-yTiy bulk permanent magnets and
(3) Elucidating and understanding the microstructure and magnetic properties of the Sm(Fe1-xCox)12-yTiy MMPs and the anisotropic bulk permanent magnets.
|
| Causes of Carryover |
Pacifichem 2020 has been rescheduled due to the COVID-19 pandemic
|
Research Products
(3 results)
