S. ThongmeeI. M. TangT. MethasiriMahidol UniversityChulalongkorn University2018-09-072018-09-072000-01-01Materials Research Bulletin. Vol.35, No.13 (2000), 2183-2188002554082-s2.0-0034289659https://repository.li.mahidol.ac.th/handle/20.500.14594/25940The mechanical alloying of Sm-Fe mixtures of molar ratios 1/2 and 1/3 were carried out. The milled mixtures were subjected to a two-step annealing process; first annealing for 1 h at 900 °C in argon gas, followed by a second annealing for 4 h at temperatures between 300 and 450 °C (Ta2) in nitrogen gas. Both the X-ray diffraction (XRD) and Moessbauer studies indicate that heat treatment of both mixtures results in the growth of the 2-17 (Sm2Fe17Nx) intermetallic. The coercivity of both milled mixtures increases as Ta2is raised, while the specific magnetization of both are seen to decrease initially and then increase as Ta2is raised further.Mahidol UniversityEngineeringMaterials SciencePhysics and AstronomyArticleSCOPUS10.1016/S0025-5408(00)00415-3