Structure, magnetism and magnetocalorics of Fe-rich (Mn,Fe)1.95P1-Si melt-spun ribbons

Effect of the Heat Treatment on the Microstructure, Magnetism and Magnetocaloric Effect in Fe-Rich (Mn,Fe)Y(P,Si) Melt-Spun Ribbons

“…The Fe-rich and Sirich composition of the impurity phase confirms that this phase is a product of Fe 5 Si 3 degradation, as indicated in Section 3.1. In the (Mn,Fe) 2 (P,Si) family of compounds T C increases and the hysteresis decreases with increasing Fe and Si contents [20,41]. Therefore, the occurrence of this impurity phase might contribute to a significant decrease in T C and an increase in hysteresis, which is observed for y = 1.85 and 1.80.…”

“…Until now, many promising families of MCMs for the near-room temperature refrigeration have been studied intensively, e.g. : Fe-Rh [9][10][11], Gd 5 (Si,Ge) 4 [3,12,13], LaFe 13-x Si [14][15][16], (Mn,Fe) 2 (P,X), (X = As, Ge, Si) and its doped compounds [8,[17][18][19][20] and Heusler alloys [21,22].…”

“…Among the mentioned magnetocaloric materials, the (Mn,Fe) 2 (P,Si) family of compounds that exhibit a large MCE in low magnetic fields near room temperature have drawn considerable attention. The Fe-rich region of the (Mn,Fe) 2 (P,Si) system is especially of interest due to its large magnetic moment and low costs of starting materials [20]. It has recently been reported that in this family of compounds, the metal/non-metal ratio (M/NM) has a significant impact on the final performance of the material [6,23].…”

Effect of Co and Ni Doping on the Structure, Magnetic and Magnetocaloric Properties of Fe-Rich (Mn,Fe)2(P,Si) Compounds

“…The Mn-rich compounds have been explored extensively since it was found that in this region it is feasible to obtain materials with a small hysteresis and yet exhibiting a giant magnetocaloric effect (GMCE) near room temperature [6][7][8]. However, as reported by Ou et al [9,10], the Fe-rich region of the (Mn,Fe) 2 (P,Si) system can potentially also be favorable since compounds with a higher Fe content can show an even larger magnetic moment compared to Mn-rich materials.…”

Magnetocaloric effect in textured rare earth intermetallic compound ErNi

“…1 This has triggered a series of studies on melt-spun, crystalline intermetallic compounds and alloys. 2,3 The equiatomic rare earth intermetallic compounds RNi (R = Gd, Tb, Dy, Ho and Er) are known to exhibit interesting structural, magnetic and transport properties. 4,5 The RNi compounds with light rare earths (i.e.…”