발간논문

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Vol.24, No.12, 1336 ~ 1342, 1986
Title
Crystallization of Amorphous Fe80 Si x- P20-x Alloys
손홍재Hong Jae Shon, 임영언Yeong Eon Ihm, 김택기Taik Kee Kim
Abstract
The thermal stability and crystallization process of amorphous Fe_(80)Si_xP_(20-x) alloys were studied by DSC and x-ray diffractometer. The crystallizations of the amorphous Fe_(80)Si_xP_(20-x) occurred in one step when 2≤x ≤4 as amorphous → α-Fe (b.c.e) + Fe₃P (b.c.t). However, when 6≤x≤10 the crystallization was completed in two stage as amorphous → amorphous + Fe₃P (b.c.t) → Fe₃P (b.c.t) + Fe₂P (h.c.p). Then, Fe₃P + Fe₂P transformed into Fe₃P (b.c.t) + α-Fe. The activation energy for crystallization was about 115㎉/㏖ for x≥4 at % and the activation energy for 1st step, about 20 ㎉/mole larger than that of 2nd step.
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