Possibilities of nanocomposite magnet by using new NdFe12Nx compounds

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14112
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Physical properties of metals/Metal-base materials
• Research Institution: National Institute for Materials Science
• Principal Investigator: HIRAYAMA YUSUKE 国立研究開発法人物質・材料研究機構, 磁性・スピントロ二クス材料研究拠点, 研究員 (60617059)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 永久磁石 / ThMn12

Outline of Final Research Achievements

The purpose of this research was to investigate the possibility of nanocomposite magnet by using new NdFe12Nx compounds. First, we need to maximize the coercivity of NdFe12Nx.
By changing the under layer from single- to poly- MgO, the enhancement of the coercivity was expected since the granular structure might be obtained. However, we could not obtain large enough enhancement for nanocomposite magnet. This is due to the existence of Fe as a second phase. To minimize the Fe phase, small amount of Fe substitution with Ti works well. In this case, the c axis was aligned, then detail analysis has not completed yet.

Free Research Field

磁性材料