The special chemical short-range order and solidification behavior of Cu–Fe–P immiscible alloys

Effects of Co Addition on Microstructure Evolution and Efficient Hydrogen Evolution of Self-Supported Fe–P@Cu Immiscible Alloy

“…3 In order to further reveal the influence of adding Co element on the microstructural evolution, the detailed FESEM images of Cu 60 Fe 16 Co 16 P 8 immiscible alloys are shown in Figure 7. In comparison with our previous studies, 23 it was observed from Figure 7a−b that there were no obvious changes in the internal structure of the second phase with the Co adding. As shown in Figure 7b, there were many fine light gray spherical particles distributed in the second phase region, which could be identified as Cu-rich particles according to the corresponding EDS analysis in Figure 7c.…”

“…Meanwhile, it was found that Cu and (Fe/Co) atoms tended to appear on the opposite side of P atom in the cluster configuration, which exhibited liquid structural features similar to those of the Cu 60 Fe 32 P 8 basic alloy obtained in our previous work. 23 The special distribution state of Cu and (Fe+Co) atoms exhibited the typical liquid−liquid separation characteristic, which would have a significant guiding effect on the subsequent solidification process of these immiscible alloys (Table 1).…”

“…Meanwhile, most of them could show relatively high electrical conductivities for hydrogen evolution reactions. − As one of TMP compounds, Fe–Co–P alloys have been considered as a promising catalyst for the electrolysis of water, which could be supplied as an alternative catalyst with low cost, high catalytic activity, and good stability, triggering lots of research interests. In the previous studies, our research group successfully prepared immiscible alloys rich in TMPs. In this paper, the effects of Co addition on the liquid–liquid phase separation behaviors and catalytic properties of Fe–P@Cu immiscible alloys were investigated in detail, in which the (Fe x Co 1– x ) n P intermetallic compounds with multiple shells were successfully synthesized.…”

The property of CrCoNiFeMnAl x (x=0, 0.5, and 1) high-entropy alloys on rapid cooling: insights from ab initio molecular dynamics

“…After quenching down to the desired temperature, the equilibrium volume of supercells is obtained by adjusting the internal pressure close to 0 [22]. At each target temperature, the equilibrium volume is used as input configuration in the following 10 000 steps of NVT ensemble simulation [23][24][25][26]. The first 6000 steps are used to relax the system to reach thermal equilibrium and the remaining 4000 AIMD steps are used for the analysis of the structure and kinetic properties.…”

Numerical Calculation of the Arc-Sprayed Particles’ Temperature in Transient Thermal Field

“…The convection heat exchange coefficient α f was determined using the Rantz and Marshal Equation (5) [48,49] and the dimensionless Prandtl (6) and Reynolds (7) numbers.…”