Phase diagram of the Nd2Fe14B–Sm2Fe14B pseudo-binary system
作者： Ch. F. Xu , K. H. Chen , Z. F. Gu , L. Y. Cheng , D. D. Ma
DOI: 10.1107/S1600576715022062
关键词:
摘要: The phase relations in the (1−x)Nd2Fe14B–xSm2Fe14B system over whole concentration range have been studied by means of X-ray powder diffraction (XRD), differential thermal analysis (DTA) and scanning electron microscopy with energy-dispersive spectroscopy. Crystal structure parameters for all compositions (Nd1−xSmx)2Fe14B determined full-profile Rietveld refinements. These results revealed that intermediate alloys are similar to end member investigated system, Nd2Fe14B, a tetragonal (space group P42/mnm). formation continuous solid solutions has found this system. normalized lattice unit-cell volumes decrease linearly increasing Sm content. DTA measurements show melting temperature increases content no metastable phases were detected. Based on data XRD results, tentative diagram pseudo-binary Nd2Fe14B–Sm2Fe14B constructed.
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