ACTA

Amorphous Soft Magnetic Fe₈₀B₁₁Si₉ Alloy in Tensile Stress Sensors Application

J. Salach^a, D. Jackiewicz^a, A. Bieńkowski^a, R. Szewczyk^b and M. Gruszecka^a
^aInstitute of Metrology and Biomedical Engineering, Warsaw University of Technology, Warsaw, Poland
^bIndustrial Research Institute for Automation and Measurements, Al. Jerozolimskie 202, 02-486 Warsaw, Poland

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Paper presents the results of investigations of the influence of the tensile stresses on magnetic characteristics of Fe₈₀B₁₁Si₉ 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 Fe₈₀B₁₁Si₉ 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.

DOI: 10.12693/APhysPolA.126.102
PACS numbers: 75.80.1q, 75.50.Kj.