Influence of microstructural changes on magnetic refrigeration performance for La(Fe0.94Co0.06)11.8Si1.2 alloys during magnetic field cycling

Abstract

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Atomistic insight into ideal strength, fracture toughness, deformation, and failure mechanisms of magnetocaloric Fe2AlB2

“…For instance, finite strain induced due to the magnetic and thermal cycling deteriorates the MCM. 22,23 It reduces the mechanical stability of MCM by introducing thermo-mechanical stresses, micro-cracks, and sub-boundaries 24 that adversely affect its performance. The brittleness of the MCM also hinders its machining and shapeability into magnetocaloric heat exchanger.…”

“…The mechanical properties of MCMs play a key role in the reliability and performance of the magnetocaloric devices. For instance, finite strain induced due to the magnetic and thermal cycling deteriorates the MCM 22,23 . It reduces the mechanical stability of MCM by introducing thermo‐mechanical stresses, micro‐cracks, and sub‐boundaries 24 that adversely affect its performance.…”

“…Specifically, it is 36% less than that of Cr 2 AlB 2 .35 Figure1E-G illustrates the effect of pure shear deformation on the structure and chemical bonding of FAB. The ranges of τ c and s m for FAB are(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26) GPa and (0.15-0.30), respectively, depending on the slip system and shear mode. The empirical models can also be used to approximate the ISS or τ c of a material.…”

The Effects of La Doping on the Crystal Structure and Magnetic Properties of Ni2In-Type MnCoGe1−xLax (x = 0, 0.01, 0.03) Alloys

“…Pr, Nd, Tb, and Dy resources are scarce, while La and Ce resources are abundant and overstocked. Therefore, in recent years, the development of magnetic materials containing La and Ce has become the focus of attention in academia and industrial production [ 22 , 23 , 24 , 25 ].…”

Microstructure and hydrogen storage kinetics of Mg89RE11 (RE = Pr, Nd, Sm) binary alloys

“…Among them, adding RE elements attracts extensive interest for the Mg-based alloys due to its excellent improvement of the hydriding/dehydriding rate, which may be a better choice to meet the requirements of future hydrogen energy storage systems. [24][25][26][27][28][29] Therefore, the addition of rare earth elements into Mg-based alloys as alloying elements shed light on the better hydrogen storage properties for alloys. The hydrogen storage capacity of La 2 Mg 17 reaches 6 wt% at the temperature of 350 C. 30 The Mg 3 La compound prepared by induction melting can absorb 2.89 wt% of hydrogen reversibly at 296 C. 31 Wu et al 32 investigated the hydrogen storage properties and phase transitions of Mg 17 Ba 2 , which has reversible hydrogen capacity of 4.0 wt% H 2 .…”