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Amorphous Soft Magnetic Fe_{80}B_{11}Si_{9} Alloy in Tensile Stress Sensors Application

100%

Salach J., Jackiewicz D., Bieńkowski A., Szewczyk R., Gruszecka M.

vol. 126

issue 1

102-103

Paper presents the results of investigations of the influence of the tensile stresses on magnetic characteristics of Fe_{80}B_{11}Si_{9} amorphous alloy in as quenched and annealed state. For the tests, a special methodology of application of uniform tensile stresses to the ring shaped sample was developed. Due to special non-magnetic pads, the magnetizing and sensing coils can be wound around the core. Experimental results indicate high stress sensitivity of Fe_{80}B_{11}Si_{9} alloy in both as-quenched and annealed state. Permeability of the core decreases over 64% and 58% for as-quenched and annealed core respectively, especially for lower values of the amplitude of magnetizing field.

The Influence of Thermomagnetic Treatment on the Magnetoelastic Characteristics of Fe₆₁Co₁₉Si₅B₁₅ Amorphous Alloys

73%

Salach J., Szewczyk R., Svec Sr P., Bieńkowski A., Jackiewicz D., Svec P., Nowicki M., Winiarski W., Kachniarz M., Gruszecka M.

Acta Physica Polonica A

2015

vol. 127

issue 2

617-619

Information about magnetoelastic properties of newly developed amorphous magnetic alloys is very important from practical point of view, especially in the case of high permeability materials such as the Fe₆₁Co₁₉Si₅B₁₅ amorphous alloy. In the case of such materials, effect connected with the influence of external stresses on the magnetic properties of the alloy should be tested. This paper presents experimental results of the magnetoelastic properties investigation of the Fe₆₁Co₁₉Si₅B₁₅ amorphous alloy, annealed without magnetic field as well as in the magnetic field. Such thermo-magnetic treatment generated anisotropy has significant influence on the total free energy of magnetic material. In the magnetoelastic investigation, the compressive stress was applied to the ring shaped core, perpendicularly to the magnetizing field direction. Due to the fact, that cores with closed magnetic circuits were used, demagnetization did not change the balance of total free energy in the material.

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2 Acta Physica Polonica A

1 2015

1 2014

2 Bieńkowski A.

2 Gruszecka M.

2 Jackiewicz D.

2 Salach J.

2 Szewczyk R.

1 Kachniarz M.

1 Nowicki M.

1 Svec P.

1 Svec Sr P.

1 Winiarski W.

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Amorphous Soft Magnetic Fe_{80}B_{11}Si_{9} Alloy in Tensile Stress Sensors Application

The Influence of Thermomagnetic Treatment on the Magnetoelastic Characteristics of Fe₆₁Co₁₉Si₅B₁₅ Amorphous Alloys