The effect of boron and rare earth contents on the magnetic properties of La and Cr substituted α-Fe/R2Fe14B-type nanocomposites

Abstract

Influence of microstructure on magnetic properties of nanocomposite RE 5.5 ( Fe,Cr,M ) 76.5 B 18 (RE=Nd, Tb; Cr3 at%; M=Co,Si) magnetic materials

Complete suppression of metastable phase and significant enhancement of magnetic properties of B-rich PrFeB nanocomposites prepared by devitrifying amorphous ribbons

“…Similar results were obtained by Chen et al [20]. The metastable R 2 Fe 23 B 3 phase can be entirely prohibited by increasing the content of rare earth elements [21] or by decreasing the B concentration [22]. Based on the XRD results, one can conclude that Zr, Nb or Ti atoms occupy the Pr sites, act as Pr, and this comparatively increases the content of Pr in the alloy.…”

Phase evolution and magnetic properties of PrxFe82−x−yTiyCo10B4C4 (x=9–10.5; y=0, 2) nanocomposites

“…4 presents the composition dependence of the phase evolution in the initially as-spun ribbons (V s = 18 m/s). By comparing the relative peak heights for the magnetic phases in the TMA scans for different compositions, it was easily concluded that the content of metastable 2:17 phase in the ribbons is decreased with increasing Pr and Ti substitution [14].…”

“…In the present article, the phase evolution and magnetic properties of the Pr x Fe 82−x−y Ti y Co 10 B 4 C 4 (x = 9-10.5; y = 0, 2) ribbons with low rare-earth content have been systematically investigated. The effects of melt-spinning speed and annealing on the crystallization process, the resulting nanocrystalline phase structures, and the magnetic properties of the Pr 2 (Fe, Co) 14 (C, B)-type nanocomposites with different Pr and Ti contents, are reported and discussed.…”

“…The latter studies found that the R 2 Fe 14 C (R = Pr, Nd) phase could be obtained by annealing melt-spun ribbons for a short time [6][7][8][9]. For R [13][14][15][16] Fe bal. (B, C) 6-8 (R = Pr, Nd, Dy) ribbons with high rare-earth content, high coercivity of i H c = 15-20 kOe, but low remanence of about 7 kG, have been obtained [8][9][10].…”

Study on the magnetic properties, phase evolution and microstructure of PrxFe82.2−yTiyB17.8−x (x=5–11.8; y=2.5–5.5) nanocomposites

“…Cr 2 B 10 ribbons with middle high boron content [5,6]. Similarly, B r , i H c and (BH) max values of 8.4-9.6 kG, 9.5-14.3 kOe and of 13.4-16.2 MGOe, respectively, have been obtained on the ternary Pr 9.5À11.76 Fe bal.…”