DefinePK

Abstract

Development of high Nd2Fe14B based energy-intensive magnets has shown that in principle R-Fe intermetallic compounds with high content of iron are good and relatively cheap magnetic materials. However, a disadvantage of such compounds is the low Curie temperature, which decreases in the R-Fe system with increasing of iron concentration, and becomes the smallest ~ 300-400 K in the case of R2Fe17. Magnetic properties of the compound can be significantly modified by doping of various interstitial or substitutional impurities. The work presents the results of the investigation on the effect of Sm2Fe17 alloying with titanium and molybdenum, in particular, on the Curie temperature (TC) and magnetic properties. It is shown that Sm2Fe17 alloying with titanium and molybdenum increases the lattice parameter and the volume of the lattice cell without changing the lattice symmetry. When measuring the hysteretic properties of Sm2Fe17 based alloys, it was revealed that the introduction of titanium, as well as molybdenum, leads to a broadening of the hysteresis loop.