论文信息 - Phase formation and magnetic propeties of Dy/sub 3/(Fe,V)/sub 29/

Phase formation and magnetic propeties of Dy/sub 3/(Fe,V)/sub 29/

A systematic study of the phase formation in the iron-rich end of the Dy-Fe-V ternary system has been carried out using combination of X-ray diffraction (XRD), thermogravimetric analysis (TGA) and /sup 57/Fe Mossbauer spectroscopy. A new Dy/sub 3/(Fe/sub 0.927/V/sub 0.073/)/sub 29/. compound has been identified, which crystallizes in the monoclinic Nd/sub 3/(Fe/sub 1-x/Ti/sub x/)/sub 29/ (x=1.24) structure with lattice parameters of a=10.605(8) /spl Aring/, b=8.475(7) /spl Aring/, c=9.672(7) /spl Aring/ and /spl beta/=97.06(4)/spl deg/. The Curie temperature is 478/spl plusmn/3 K. The average /sup 57/Fe hyperfine field is 20.9(2) T at 293 K, which corresponds to an average Fe magnetic moment of about 1.49 /spl mu//sub B/.

J. Cadogan | Hong-Shuo Li | D. Courtois

[1] S. J. Collocott,et al. New rare‐earth intermetallic phases R3(Fe,M)29Xn: (R=Ce, Pr, Nd, Sm, Gd; M=Ti, V, Cr, Mn; and X=H, N, C) (invited) , 1994 .

[2] J. García,et al. Structural and magnetic characterization of the new ternary phase Tb3(Fe1−xTix)29 , 1994 .

[3] J. Cadogan,et al. Magnetic properties of R3(Fe,Ti)29Cy carbides (R=Nd, Sm) , 1994 .

[4] Z. Hu,et al. Structural and magnetic properties of the novel Nd3Fe29−xTix compound from powder neutron diffraction , 1994 .

[5] J. Cadogan,et al. Structural properties of a novel magnetic ternary phase: Nd3(Fe1−xTix)29 (0.04 ≤ x≤ 0.06) , 1994 .

[6] R. J. Hill,et al. Peak Shape Variation in Fixed-Wavelength Neutron Powder Diffraction and its Effect on Structural Parameters Obtained by Rietveld Analysis , 1985 .