scholarly journals Systematic study of the temperature dependence of the saturation magnetization in Fe, Fe-Ni and Co-based amorphous alloys

1989 ◽  
Vol 25 (5) ◽  
pp. 3363-3365 ◽  
Author(s):  
M. Liniers ◽  
J. Flores ◽  
F.J. Bermejo ◽  
J.M. Gonzales ◽  
J.L. Vicent ◽  
...  
2006 ◽  
Vol 21 (4) ◽  
pp. 1019-1024 ◽  
Author(s):  
J.M. Park ◽  
J.S. Park ◽  
D.H. Kim ◽  
J-H. Kim ◽  
E. Fleury

Fe element was partially substituted by Zr and Co in an attempt to enhance the glass-forming ability, and mechanical and soft magnetic properties of Fe74-xNb6B17Y3(Zr, Co)x (x = 3, 5, 8) amorphous alloys. Both partial replacements resulted in the enhancement of the glass-forming ability, and 3-mm diameter rods with a fully amorphous structure were prepared by a copper mold casting method. Zr and Co containing Fe-based bulk amorphous alloys exhibited high compressive fracture strength of about 4 and 3.5 GPa, respectively. However, Zr and Co induced different effects on the magnetic properties. Whereas the partial replacement of Fe by Zr was found to decrease dramatically the saturation magnetization, the partial replacement of Fe by Co provided an increase of about 25% of the saturation magnetization.


Materials ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 228
Author(s):  
Yuhua Xu ◽  
Zhenghou Zhu ◽  
Hui Zhao ◽  
Jia Zhou

In this paper, a single phase ε-Fe(Si)3N powder was successfully synthesized through the salt bath nitriding reaction method. The flaky FeSi alloy powder was used as the iron source, and non-toxic CO(NH2)2 was used as the nitrogen source. The nitridation mechanism, the preparation technology, the soft magnetic properties, and the magnetization temperature dependence of the powder were studied. The research result showed that ε-Fe(Si)3N alloy powders were synthesized in a high temperature nitrification system after the surface of flaky FeSi alloy powders were activated by a high-energy ball mill. The optimum nitriding process was nitridation for 1 h at 550 °C. The ε-Fe(Si)3N powder had good thermal stability at less than 478.8 °C. It was shown that ε-Fe(Si)3N powder has good soft magnetic properties, and the saturation magnetization of the powder was up to 139 emu/g. The saturation magnetization of ε-Fe(Si)3N powder remains basically constant in the temperature range of 300–400 K. In the temperature range of 400–600 K, the saturation magnetization decreases slightly with the increase of temperature, indicating that the magnetic ε-Fe(Si)3N powder has good magnetization temperature dependence.


1984 ◽  
Vol 45 (7) ◽  
pp. 802-804 ◽  
Author(s):  
A. Hernando ◽  
V. Madurga ◽  
C. Núñez de Villavicencio ◽  
M. Vázquez

1991 ◽  
Vol 232 ◽  
Author(s):  
S. Iwata ◽  
S. S. P. Parkin ◽  
H. Nuri ◽  
T. Suzuki

ABSTRACTA systematic study on magnetic properties of (Fc/Pt) compositionally-modulated films as a function of substrate-deposition-temperature has been carried out. For films with (2.5ÅFe/18ÅPt)×40, the intrinsic perpendicular magnetic anisotropy Ku is found to increase with decreasing temperature for all the sarmples deposited at temperatures from -114 °C to 220°C during deposition. The higher the substrate-deposition-temperature, the larger the Ku values become. This result implies a possible contribution from the magne to-elastic effect to the total anisotropy. However, a major part responsible for the perpendicular anisotropy may be found in other mechanisms. The saturation magnetization is found to exceed the value for pure Fe at temperatures lower than 180K.


1978 ◽  
Vol 17 (10) ◽  
pp. 1911-1912 ◽  
Author(s):  
Minoru Takahashi ◽  
Chong Oh Kim ◽  
Masami Koshimura ◽  
Takao Suzuki

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