Large Barkhausen discontinuities in Co-based amorphous wires with negative magnetostriction

Journal Article · Fri Apr 15 00:00:00 EDT 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.340585· OSTI ID:5390828

Yamasaki, J; Humphrey, F B; Mohri, K; Kawamura, H; Takamure, H; Maelmhaell, R

Magnetic properties, such as domain patterns and anisotropy, were measured for negative magnetostrictive Co-Si-B amorphous wires exhibiting large Barkhausen discontinuities and the results are compared to those of Fe-Si-B wires with positive magnetostriction. The Co-based wire was found to have a bamboolike domain structure at the wire surface. It was also shown that the amorphous wires prepared by the in-water quenching technique store tensile stress in the radial direction. The magnetostrictive anisotropy due to residual stress will produce an axial component of magnetization in conjunction with the two-dimensional geometry of wires making both Co- and Fe-based wires exhibit large Barkhausen discontinuities along the axis of the wire.

• Research Organization: Kyushu Institute of Technology, Tobata, Kitakyushu 804, Japan
• OSTI ID: 5390828
• Journal Information: J. Appl. Phys.; (United States), Vol. 63:8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
MAGNETOSTRICTION
COBALT BASE ALLOYS
SILICON ALLOYS
ANISOTROPY
DEFORMATION
DOMAIN STRUCTURE
MAGNETIZATION
STRESSES
TENSILE PROPERTIES
WIRES
ALLOYS
COBALT ALLOYS
MAGNETIC PROPERTIES
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
360104* - Metals & Alloys- Physical Properties