Development of hybrid magnetic particles for next-generation digital mobile application

• Project/Area Number: 26289251
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: SUGIMOTO SATOSHI 東北大学, 工学(系)研究科(研究院), 教授 (10171175)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2015: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000); Fiscal Year 2014: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
• Keywords: 磁性粒子 / 高周波 / 電気抵抗 / 透磁率 / 電磁波吸収 / ナノ粒子 / 電磁波吸収体 / アモルファス / フェライトめっき / 構造・機能材料 / 高周波材料 / 磁性 / 電子デバイス・機器 / 鉄系アモルファス

Outline of Final Research Achievements

The purpose of this research was to develop hybrid magnetic particles (ANC) for next-generation digital mobile application. The ANC were prepared by NiZn ferrite (NZF) plating on the surface of amorphous Fe-B sub-micron particles　（AFBS). The following results were obtained. Dispercity of AFBS was improved using ultrasonic agitation and addition of sodium oleate. ANC showed high electric resistivity. The polymer composites using ANC did not show high permeability but they showed high electric resistivity and good microwave absorption properties comparable to existing materials.