Paper Title:
Studies of Magnetic Properties of Amorphous Microwires Produced by Combination of by Quenching, Glass Removal and Drawing Techniques
  Abstract

In this paper we report on fabrication and characterization of nearly-zero magnetostriction Co69Fe4Cr4Si12B11 amorphous microwires produced by two different methods: i-fabricated by combination of usual Tailor-Ulitovski method allowing rapid quenching of composite glass coated microwires following by glass removal techniques (with diameter about 90 μm); ii-produced by Tailor-Ulitovski method with consequent glass removal and warm drawing (at 300 °C). In first case the metallic nucleus diameter has been about 90 μm and after drawing we obtained microwires with diameter about 55 μm. Drawn samples have been annealed at temperatures between 250 and 450 °C. We studied GMI effect (dependence of impedance, Z, on applied magnetic field H) and hysteretic magnetic properties in produced microwires. Ferromagnetic magnetic without glass coating with good magnetic and mechanical properties and GMI effect have been obtained. We can tailor the microwires magnetic properties for its application in magnetic sensors through the selection of adequate thermal treatment conditions.

  Info
Periodical
Edited by
E. Hristoforou and D.S. Vlachos
Pages
280-284
DOI
10.4028/www.scientific.net/KEM.495.280
Citation
V. Zhukova, P. Umnov, V. Molokanov, A.N. Shalygin, A. P. Zhukov, "Studies of Magnetic Properties of Amorphous Microwires Produced by Combination of by Quenching, Glass Removal and Drawing Techniques", Key Engineering Materials, Vol. 495, pp. 280-284, 2012
Online since
November 2011
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