Results 11 to 20 of about 51,644 (295)

Morphology of NdFeB-Type Permanent Magnet Coercivity Enhancement by Heat Treatment Process

Indonesian Journal of Chemistry, 2020
To understand the morphology of the coercivity enhancement by heat treatment, a commercial sintered NdFeB-type permanent magnet is annealed, and the coercivity is measured by Permagraph.
Eva Afrilinda, Dagus Resmana Djuanda, Shinta Virdhian, Martin Doloksaribu, Moch Iqbal Zaelana Muttahar, Sri Bimo Pratomo   +5 more
doaj   +1 more source

Additive Manufacturing of Bulk Nanocrystalline FeNdB Based Permanent Magnets

Micromachines, 2021
Lab scale additive manufacturing of Fe-Nd-B based powders was performed to realize bulk nanocrystalline Fe-Nd-B based permanent magnets. For fabrication a special inert gas process chamber for laser powder bed fusion was used.
Dagmar Goll, Felix Trauter, Timo Bernthaler, Jochen Schanz, Harald Riegel, Gerhard Schneider   +5 more
doaj   +1 more source

The Influence of Microstructure on the Electromagnetic Behavior of Carbon Steel Wires

Crystals, 2022
This paper describes the relations between microstructure, mechanical properties, and electromagnetic behavior of carbon steel wires submitted to different thermomechanical treatments.
Isadora Maria Oliveira Anício Costa, Marianna Batková, Ivan Batko, Abdelkader Benabou, Christophe Mesplont, Jean-Bernard Vogt   +5 more
doaj   +1 more source

On the remarkable coercivity in MnBi by microstructural engineering [PDF]

APL Materials
MnBi materials with different microstructures were prepared by severe plastic deformation using different processing conditions. The coercivity can be controlled by tuning the grain size, defect density, and the phase distribution of the MnBi in the ...
Andrea Bachmaier, Lukas Weissitsch-Reiner, Martin Kraus, Heinz Krenn, Stefan Wurster   +4 more
doaj   +1 more source

Activation volumes in CoPtCr-SiO2 perpendicular recording media [PDF]

, 2005
CoPtCr-SiO2 perpendicular recording media with varying levels of SiO2 were examined by two different methods to determine the activation volume. The first is based on the sweep-rate dependence of the remanence coercivity using Sharrock's equation.
Dutson, J D, Inaba, Y, Muraoka, H, O'Grady, K, Shimatsu, T   +4 more
core   +1 more source

Coercivity of Integrals versus Coercivity of Integrands

Journal of Mathematical Analysis and Applications, 1995
Considering the integral functional of the calculus of variations \[ I(u)=\int_{\Omega} f(x,u(x),\nabla u(x)) dx \] where \(\Omega\subset \mathbb{R}^n, u:\Omega \to \mathbb{R},\) the authors discuss the possibility that a coercivity assumption on \(I\) implies an analogous property on the integrand.
BOCCARDO, Lucio, B. Dacorogna
openaire   +1 more source

Bounding Stability Constants for Affinely Parameter-Dependent Operators [PDF]

, 2016
In this article we introduce new possibilities of bounding the stability constants that play a vital role in the reduced basis method. By bounding stability constants over a neighborhood we make it possible to guarantee stability at more than a finite ...
O'Connor, Robert
core   +3 more sources

Simulation of alnico coercivity [PDF]

, 2017
Micromagnetic simulations of alnico show substantial deviations from Stoner-Wohlfarth behavior due to the unique size and spatial distribution of the rod-like Fe-Co phase formed during spinodal decomposition in an external magnetic field.
Anderson, Iver E., Hoffmann, Todd D., Johnson, Duane D., Ke, Liqin, Kramer, Matthew J., Skomski, Ralph, Tang, Wei, Wang, C. -Z., Zhou, Lin   +8 more
core   +3 more sources

Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays [PDF]

, 2001
The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE).
Bland, J.A.C., Cambril, E., Chen, Y., Gardiner, S.M., Hirohata, A., Klaui, M., Lopez-Diaz, L., Rothman, J., Rousseaux, F., Tselepi, M., Xu, Y.B.   +10 more
core   +1 more source

Magnetic structures in Co---Cr media for perpendicular magnetic recording [PDF]

, 1996
High bit densities have been demonstrated in longitudinal as well as in perpendicular magnetic recording. For the latter an area density of more than 12 Gbit/in2 has been obtained in a sputtered Co---Cr---Ta hard disk with a soft magnetic underlayer ...
Lodder, J.C.
core   +2 more sources