Significant reduction of phase-transition hysteresis for magnetocaloric (La1-Ce )2Fe11Si2H alloys by microstructural manipulation

Enhancement of Magnetic Properties and Magnetocaloric Effects for Mn0.975Fe0.975P0.5Si0.5 Alloys by Optimizing Quenching Temperature

“…[1][2][3] It is known that the magnetocaloric material is the heart of the magnetic refrigeration technology. In the past few decades, many materials with large magnetocaloric effect (MCE) have been reported, like Gd 5 (Si x Ge 1Àx ) 4 , [4][5][6] LaFe 13Àx Si x and its hydrides, [7][8][9] Heusler alloys, [10][11][12] (Mn, Fe) 2 (P,X) (X ¼ As, Ge, Si) series alloys, [13][14][15] and so on. For these MCE materials with first-order magnetic transition (FOMT), the structure change often occurs across the magnetic phase transition, due to which the lattice entropy results in the giant entropy change.…”

Ultra-low hysteresis in giant magnetocaloric Mn1-V Fe0.95(P,Si,B) compounds

“…The reason for the different value of hysteresis for M-T and DSC measurement is not clear yet. Recently, the origins for zero-hysteresis in the materials with IEM are investigated from the aspect of nanoscale phase separation [6,44,45] and the secondary phases [46]. Thus, we propose an explanation based on the in-field DSC data.…”

“…The performance of GMCE materials mainly determines the working efficiency and the cooling power of this technology. The GMCE usually occurs in materials that show a first-order magnetic transition (FOMT), such as Gd 5 Ge 2 Si 2 , [3] LaFe 13-x Si x , [4][5][6][7] MnFeP 1-x As x , [8] MnFeP 1-x-y Si x B y , [9][10][11] MnCoGe (Cu, B) x [12,13] and Heusler [14] compounds. Among them, the MnFeP 1-x-y Si x B y compounds are regarded as one of the most promising materials that can be industrialized because of their cheap and non-toxic elements, high cooling capacity and tunable T C near room temperature [9].…”

Magnetic properties and promising magnetocaloric performances in the antiferromagnetic GdFe2Si2 compound

“…The magnitudes of the MC effect have a strong correlation with the corresponding magnetic phase transition (MPT); therefore, the investigation of the MC effects of magnetic materials can provide considerable valuable information for the better understanding of MPT [5][6][7][8][9]. Therefore, many magnetic materials have been synthesized and systematically determined with regard to the magnetic proper-ties, MPT, and MC performances not only to search for suitable candidates for active MR application at cryogenic and near room temperature but also to better understand the MPT of magnetic materials [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. However, a large gap still exists at the present stage between the practical MR application requirements and the performances of known MC materials.…”