Title :
New perspectives for magnetomechanical coupling in high-purity nickel
Author :
Hug, Eric ; Iordache, Viorel E. ; Buiron, Nicolas
Author_Institution :
Lab. Roberval, Univ. de Technol. de Compiegne, France
fDate :
9/1/2002 12:00:00 AM
Abstract :
The aim of this work is to provide experimental results in order to understand internal stress and grain-size effects on the magnetic properties of high-purity polycrystalline nickel. In situ experiments under a loading-unloading monotonous tensile test have shown a strong degradation of the magnetic properties in the elastic state. The elastic-plastic transition and the effect of grain size can be highlighted thanks to Barkhausen noise measurements.
Keywords :
Barkhausen effect; elastoplasticity; ferromagnetic materials; grain size; internal stresses; magnetomechanical effects; nickel; soft magnetic materials; stress-strain relations; Barkhausen noise measurements; Ni; elastic-plastic transition; grain-size effects; high-purity Ni; in situ experiments; internal stress; loading-unloading monotonous tensile test; magnetic properties degradation; magnetomechanical coupling; soft ferromagnetic materials; Couplings; Grain size; Internal stresses; Magnetic field induced strain; Magnetic materials; Magnetic properties; Magnetoelasticity; Nickel; Plastics; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.803569
