1. Intrinsic magnetic properties of Nd16Fe72−xCoxC11B carbides
- Author
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C. Paduani, Sophie Rivoirard, Jean-Louis Soubeyroux, P. de Rango, Robert Tournier, Univ Fed Santa Catarina, Dept Fis, Univ Fed Santa Catarina, Consortium de Recherches pour l'Emergence des Technologies Avancées (CRETA), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire de Cristallographie, and Centre National de la Recherche Scientifique (CNRS)
- Subjects
carbides ,010302 applied physics ,Materials science ,permanent magnets ,Analytical chemistry ,rare-earth ,02 engineering and technology ,Coercivity ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Microstructure ,Magnetic hysteresis ,transition metal ,01 natural sciences ,3. Good health ,Electronic, Optical and Magnetic Materials ,Carbide ,Magnetization ,Nuclear magnetic resonance ,Transition metal ,Remanence ,Phase (matter) ,0103 physical sciences ,[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] ,0210 nano-technology - Abstract
An investigation of the magnetic properties of the Nd 16 Fe 72− x Co x C 11 B series is described. The as-cast alloys show the coexistence in equilibrium of the Nd 2 Fe 14 C phase together with secondary phases, such as α-Fe and the very corrosive χ (hexagonal) phase. After one week of heat treatment, the main 2 : 14 : 1 phase in the alloys is verified. It is verified that the addition of 1 at% B reduces the presence of α-Fe in this compound, whereas the substitution of Co for Fe causes an increase of the critical temperature. For x =10 a maximum is observed in both the remanence and coercivity, at 4 kG and 3 kOe, respectively.
- Published
- 2001
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