Utilization of slag with high sulfur content to produce ceramsites and meanwhile recovering SO2 from the flue gas is a green and high effective way. In this paper, kiln slag with 7.34 wt.

The structure of the all-d-metal alloy Ni 50– x Co x Mn 25 V 25 ( x = 0–50) is investigated by using theoretical and experimental methods. The first-principles calculations indicate that the most stable structure of the Ni 2 MnV alloy is face-centered cubic (fcc) type structure with ferrimagnetic state and the equilibrium lattice constant is 3.60 Å, which is in agreement with the experimental result. It is remarkable that replacing partial Ni with Co can turn the alloy from the fcc structure to the B2-type Heusler structure as Co content x > 37 by using the melting spinning method, implying that the d–d hybridization between Co/Mn elements and low-valent elements V stabilizes the Heusler structure. The Curie temperature T C of all-d-metal Heuser alloy Ni 50– x Co x Mn 25 V 25 ( x > 37) increases almost linearly with the increase of Co due to that the interaction of Co–Mn is stronger than that of Ni–Mn. A magnetic transition from ferromagnetic state to weak magnetic state accompanying with grinding stress induced transformation from B2 to the dual-phase of B2 and fcc has been observed in these all-d-metal Heusler alloys. This phase transformation and magnetic change provide a guide to overcome the brittleness and make the all-d-metal Heusler alloy interesting in stress and magnetic driving structural transition.

通过对熔炼的Fe2Cr1-xMnxGa样品在不同温度下进行热处理来研究其对合金结构、磁性的影响.结果发现Fe2Cr1-xMnxGa的结构和磁性对热处理非常敏感,且存在一定程度的无序,制备的样品结构随不同条件的热处理发生变化,而结构的变化会进而影响合金的磁性行为.磁化强度会随着退火温度的增加而增加,说明通过热处理,样品的有序度得到提高.而随着Mn含量的掺杂,样品的磁化强度在降低,是由于掺杂的Mn原子使得Fe-Mn自旋磁矩反平行排列造成的.