Production of FeCoSiBPCu soft magnetic material with high magnetic flux density and low core loss by the addition of Co

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18199
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Physical properties of metals/Metal-base materials
• Research Institution: Tohoku University
• Principal Investigator: ZHANG YAN 東北大学, 金属材料研究所, 助教 (80645135)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 軟磁性 / ナノ結晶 / アモルファス / 磁束密度 / 保磁力

Outline of Final Research Achievements

For energy saving, development of low magnetic loss soft magnetic materials is expected, and low power consumption, high efficiency, and high speed are required. As this research aims, research and development of soft magnetic materials with excellent soft magnetic properties and high saturation magnetic flux density are very important research subjects.
In the Fe81.3CoxSi0.5B13.5-xP4Cu0.7 alloy system (x = 3-6 at.%) Having the compositionally searched total concentration 86.3 at.% Of iron and cobalt elements, a small amount of Co addition caused high saturation magnetic flux It became possible to achieve compatibility between density (1.85 T) and low coercive force (<10 A/m). It has become possible to ultra-miniaturize the magnetic core material used for transformers, motors and the like and ultra-low iron loss energy due to soft magnetic characteristics.

Free Research Field

工学