Applications of amorphous wire

Humphrey, F. B.

doi:10.1016/0921-5093(94)90166-x

Cited by 23 publications

(1 citation statement)

References 21 publications

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“…2,3 This is the particular case of wires exhibiting the so-called bistable magnetic behavior, characterized by a single and large Barkhausen jump between two stable remanence states. This magnetic characteristic is spontaneously observed in highly magnetostrictive amorphous wires 4 and in nearly nonmagnetostrictive Co-based wires after proper processing.…”

Section: Introductionmentioning

confidence: 99%

Matteucci and inverse Wiedemann effects in amorphous wires with enhanced circumferential domains

Freijo¹,

Vázquez²,

Hernando³

et al. 1999

Journal of Applied Physics

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Anisotropy and domain structure of die-drawn Co-Si-B amorphous wire with negative magnetostriction (abstract) Nonmagnetostrictive CoFeSiB alloy wires were subjected to cold drawing processing followed by annealing under tension, in order to induce the formation of circular magnetic anisotropy. The axial (M Z -H Z ) and circular (M -H ) hysteresis loops indicate the existence of induced transverse anisotropy, with the magnitude of the anisotropy field being dependent on the processing conditions, while circular loops are quasibistable for samples processed under stress. Very peculiar hysteresis loops are obtained for the Matteucci ͑MI, M -H Z ͒ and inverse Wiedemann ͑IWE, M Z -H ͒ effects corresponding to those samples exhibiting the mentioned circular bistability. The circular shape of the MI loop is interpreted as produced by reversible magnetization rotation within circumferential domain. The effective hysteresis arises from the existence of a helical distribution of anisotropy in the transition region between the inner axial domain and the external shell. IWE loop confirms the presence of this helicity.

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Section: Introductionmentioning

confidence: 99%

Matteucci and inverse Wiedemann effects in amorphous wires with enhanced circumferential domains

Freijo¹,

Vázquez²,

Hernando³

et al. 1999

Journal of Applied Physics

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Mechanical properties of magnetic Fe‐based and Co‐based amorphous wires and microwires

Chiriac

Lupu

Dobrea

et al. 2009

Physica Status Solidi (a)

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In this paper we present measurements of the mechanical properties of magnetically soft Fe‐based and Co‐based conventional amorphous wires (CAW) and glass‐covered amorphous microwires (GCAW) in the as‐quenched state, before and after cold rolling, and after annealing for internal stresses relief. The tensile strength (σ) varies between 2000 MPa and 3400 MPa, strongly depending on CAW diameter and annealing temperature. The Young modulus (E) is following a descendant trend, decreasing with the diameter decrease. The increase of tensile strength (σ) and elongation (ε) values after cold‐rolling and post‐annealing is caused by the release of the internal stresses induced during the preparation. Tensile strengths up to 3900 MPa are achieved for Fe‐based GCAW, depending very strongly on the microwires diameter, but mostly on the glass cover thickness. σ reaches the maximum value of 3150 MPa for a Co‐based microwire having the glass cover of 9 μm and the total diameter of 43 μm, but increases even more after the glass removal (3350 MPa). This behaviour is attributed to the structural disorder and the specific magnetic domains structure in Fe‐based and Co‐based CAW and GCAW. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Design and Preparation of New Soft Magnetic Amorphous Ferromagnets

Chiriac

Lupu

NATO Science Series

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Applications of amorphous wire

Cited by 23 publications

References 21 publications

Matteucci and inverse Wiedemann effects in amorphous wires with enhanced circumferential domains

Matteucci and inverse Wiedemann effects in amorphous wires with enhanced circumferential domains

Mechanical properties of magnetic Fe‐based and Co‐based amorphous wires and microwires

Design and Preparation of New Soft Magnetic Amorphous Ferromagnets

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