Effect of Cu Addition on Soft Magnetic Properties of Fe–Zr–Si Amorphous Alloy

Abstract

The effect of Cu addition on the soft magnetic properties of FeZrSi amorphous alloy was investigated by X-ray analysis, TEM observation, and B-H curve tracer. As a melt-spun amorphous ribbon sample was annealed above the crystallization onset temperature, very fine ¡-Fe particles smaller than ³15 nm were precipitated and uniformly distributed in an amorphous matrix. Cu addition to FeZrSi amorphous alloy annealed above the crystallization onset temperature resulted in decreased coercivity and increased saturation magnetization and permeability.

Effects of Cu and Co additions on the crystallization and magnetic properties of FeNbB alloy

“…The influence of Cu addition on the microstructures and properties of Fe-based alloys has been widely investigated. [13][14][15][16][17][18][19][20][21] Cu clustering forms prior to the onset of the primary crystallization reaction and serves as a heterogeneous nucleation site for α-Fe for many Fe-based alloys. [19] For most Fe-based alloys, 1 at.% Cu can completely play the role of heterogeneous nucleation.…”