Iron Archives - IEEE Transactions on Magnetics

Effects of Nb Content on the Microstructure and Magnetic Properties of the Sm₁.₂Zr₀.₂(Fe₀.₈Co₀.₂)₁₁.₅-ₓ Ti₀.₅Nbₓ (x=0 –0.4, at.%) Alloys

February 5, 2025Shuainan Xu, Jinbo Wei, Chengli Li, Yan Wang, Zhen Shi, Xiaolian Liu, Yuan Hong, Anjian Pan, Yancheng Kong, Lizhong Zhao, Xuefeng ZhangJournalAmorphous magnetic materials, Coercive force, Iron, Magnetic hysteresis, Magnetic properties, Magnetic resonance imaging, Magnetometers, Metals, Saturation magnetization, Soft magnetic materials

ThMn12-type SmFe12-based magnet is suggested to be a promising permanent magnet because of its intrinsic magnetic properties and thermal stability. However, their potential applications are currently limited, as the existence of a soft magnetic α -Fe phase in the alloy deteriorates the hard magnetic properties. Hence, in this work, Nb element was introduced into the […]

Effective Medium Transformation: The Case of Eddy Currents in Laminated Iron Cores

September 1, 2021Markus Schöbinger, Igor Tsukerman and Karl HollausJournalEddy currents, Geometry, Iron, Magnetic cores, Magnetostatics, Mathematical model, Permeability

Effective medium theory replaces a given fine-scale heterostructure with a homogeneous one in such a way that the physically measurable quantities, e.g., reaction fields and losses, remain approximately the same. This article presents a peculiar case where the physical nature of the problem and the type of governing mathematical equations change upon homogenization. We consider […]

An Equilibrated Error Estimator for the Multiscale Finite Element Method of a 2-D Eddy Current Problem

March 1, 2021Markus Schöbinger, Joachim Schöberl, Karl HollausJournalEddy currents, Finite element analysis, Iron, Mathematical model, Measurement uncertainty, Permeability, Upper bound

The multiscale finite element method (MSFEM) is a valuable tool to solve the eddy current problem in laminated materials consisting of many iron sheets, which would be prohibitively expensive to resolve in a finite element mesh. It allows using a coarse mesh that does not resolve each sheet and constructs the local fields using predefined […]