Thermal stability and saturation magnetization of a new series of amorphous Fe80-xCoxP14B6 (20 <= x <= 40) alloys
UNSPECIFIED. (2004) Thermal stability and saturation magnetization of a new series of amorphous Fe80-xCoxP14B6 (20 <= x <= 40) alloys. MATERIALS LETTERS, 58 (24). pp. 2988-2992. ISSN 0167-577XFull text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.matlet.2004.05.023
A series of new Fe80-xCoxP14B6 (x = 20, 25, 30, 32, 35, 40) glasses has been prepared by melt-spinning technique. The FeCo-based glasses crystallize via one stage eutectic reaction into a mixture of a-Fe (bcc) solid solution and a b.c.-tetragonal Fe3P-like phase at temperatures approx. 50 K higher than the Fe80-xNixP14B6 metallic glasses. The compositional dependence of the crystallization temperatures at constant rate heating of the FeCo-based glasses has a minimum at x = 30 that correlates well with the values of the apparent activation energy of crystallization derived from the Kissinger analysis. The as-quenched Fe80-xCoxP14B6 ribbons within the range examined have superior saturation magnetization in comparison with that of the commercial Fe40Ni40P14B6 glass, for example the maximum value of the saturation magnetization M-s estimated from vibrating sample magnetometer measurements is as high as 153 emu/g (about 1.415 T, for a density of 7.42 g/cm(3)) for the Fe48Co32P14B6 alloy. (C) 2004 Elsevier B.V. All rights reserved.
|Item Type:||Journal Article|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
|Journal or Publication Title:||MATERIALS LETTERS|
|Publisher:||ELSEVIER SCIENCE BV|
|Number of Pages:||5|
|Page Range:||pp. 2988-2992|
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