| Title |
Crystallization of Amorphous Fe80 Si x- P20-x Alloys |
| Authors |
손홍재(Hong Jae Shon); 임영언(Yeong Eon Ihm); 김택기(Taik 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. |