Abstract
Abstract Amorphous Fe 61 Co 10 Zr 4− x Y 2+ x Nb 5 B 15 ( x = 0, 1) samples in the form of a ribbon with a thickness of approximately 30 μm and a width of about 4 mm have been investigated. The ribbons were obtained by a single roller melt-spinning method with the wheel linear velocity equal to 35 m/s. Microstructural studies, using X-ray spectroscopy, confirmed that samples in the as-quenched state were fully amorphous. Measurements carried out using a vibrating sample magnetometer allowed values of coercivity and saturation magnetization to be obtained. On the basis of performed measurements, it can be stated that Fe 61 Co 8 Zr 4 Y 2 Ni 5 Nb 5 B 15 alloy exhibits superior soft magnetic properties compared with the Fe 61 Co 8 Zr 3 Y 3 Ni 5 Nb 5 B 15 alloy. The former alloy possesses: a higher value of saturation magnetization, almost double the value of magnetic permeability, approximately half the value of coercivity and substantially smaller core losses than the latter alloy.
Published Version
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