Gd–Dy–Al–Co bulk metallic glasses with large magnetic entropy change and refrigeration capacity

Magnetocaloric Effect in Uncoated Gd55Al20Co25 Amorphous Wires

“…For exploring the PM-FM transition of the as-extracted wires, the H/M (H=200 Oe) ratio of the M-T curve as a function of the temperature is calculated. As exhibited in Figure 2b, the Gd 55 Al 20 Co 25 amorphous microwires obey the Curie-Weiss law above T C and the predominant exchange interaction of the as-extracted wires is ferromagnetic below T C owing to the positive paramagnetic Curie points 16 . The temperature data were fitted to the Curie-Weiss law and by this way, the Curie (C) and Weiss (θ p ) constants are determined.…”

Magnetic properties and large magnetocaloric effect in Gd–Ni amorphous ribbons for magnetic refrigeration applications in intermediate temperature range

“…In addition, a wide range of magnetic ordering transition temperatures and a large RC value make this series of materials suitable for Ericsson refrigeration cycle and to be one of the most competitive types of refrigerants. At present, researches on amorphous magnetic refrigerants are mainly focused on heavy rare earth-based [14,[17][18][19][20][21] and transition metal-based alloys [15,16,[22][23][24].…”

Influence of melt superheat treatment on corrosion resistance of Gd-based BMG in 3.5% NaCl solution

“…Rare earth element can improve the performance of metals, and especially rare earth element Gd has a special electronic structure [7], which can be an excellent modifying element for materials. Gd-based BMGs have drawn much attention because of their unique magnetic properties, magneto-optical properties and refrigeration capacity compared to their crystalline counterparts [8,9]. Also, Gd-based BMGs have high glass-forming ability (GFA) and good mechanical properties [10,11].…”