Structure and magnetostriction of melt-spun Pr0.3Tb0.7Fe2Bx alloys

Structure and Magnetostriction of Pr_xTb_1-xFe_1.9Ti_0.1 Alloys

“…It can be found that the annealing treatment at 850 o C for 3 days is advantageous for the formation of MgCu 2 -type structure when x≤0.3, while it is disadvantageous when x>0.3. In the study of melt-spun Pr 0.3 Tb 0.7 Fe 2 B x alloys, it is found that the rapid cooling treatment is of benefit to the formation of MgCu 2 -type crystal structure [7]. In our previous study on Pr 0.3 Tb 0.7 Fe 2 alloys, the result of electron probe analysis shows that Pr concentration in Laves phase for Pr x Tb 1-x Fe 2 arc-melt alloys is 0.23, and it is reported that the addition of the boron and cobalt atoms in Pr x Tb 1-x Fe 2 alloys effectively prevent the non-cubic phases in Pr x Tb 1-x Fe 2 alloys, and is beneficial to the formation of iron-based Laves phase containing Pr.…”

“…Then many studies have been done on the compounds with Pr substitution in RFe 2 . In our previous studies, it is found that the pure cubic Laves phase with MgCu 2 -type structure was not obtained for x>0.2 in Pr x Tb 1-x Fe 2 alloys [7]. The addition of boron and cobalt atoms in Pr x Tb 1-x Fe 2 is beneficial for the formation of Laves phase, and Pr concentration limit has been successfully increases from 0.2 to 0.4.…”

“…In addition the magnetostictive materials with Pr have a good practical prospect considering cheap price of this light rare-earth element. So much attention has been paid to RFe 2 alloys with Pr [7][8][9][10]. Therefore, it is found that PrFe 2 cubic Laves phase can't be synthesized at ambient pressure.…”

High magnetostriction at low fields of (Tb1−xDyx)0.2Pr0.8(Fe0.4Co0.6)1.88C0.05 intermetallic compounds

“…This suggests that the addition of a small amount of Dy to the Tb 0.2 Pr 0.8 (Fe 0.4 Co 0.6 ) 1.88 C 0.05 compounds may effectively improve its low-field magnetostriction, and the improvement may be mainly due to the fact that the introduction of Dy to some extent can reduce the magnetocrystalline anisotropy K 1 , which can be determined by simulating the M-H curve by the approximate law of saturation [21]. Overall, in comparison with other element-doped (Tb, Dy)Fe 2 compounds, the (Tb 1À x Dy x ) 0.2 Pr 0.8 (Fe 0.4 Co 0.6 ) 1.88 C 0.05 compounds have higher magnetostriction at low fields ($ 500 Oe) [12][13][14]16,[24][25][26]. This means that the (Tb 1À x Dy x ) 0.2 Pr 0.8 (Fe 0.4 Co 0.6 ) 1.88 C 0.05 compounds would be a promising magnetostrictive material.…”

Interaction between amorphous ferromagnetic Co–Fe–B particles in conducting silver matrix prepared by chemical reduction route

“…Oxides compounds of these materials are also used in developing of magnetic devices [9][10][11]. On the other hand, amorphous metallic alloys such as Co-B, Ni-B, Fe-B, and FeCoB have been studied in the past by several researchers in order to understand their electronic and magnetic properties, which make them important for technological applications as well as fundamental studies [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. These have the ferromagnetic domains.…”