A study of the structure change with temperature in amorphous Fe100-xPx (13 ≤ x ≤ 24) alloys was carried out by measuring magnetization and thermal expansion and also by structural analysis using X-ray diffraction and differential thermal analysis (DTA). The structure of the amorphous alloys relaxes (the decrease of excess free volume) at temperatures 100-150 K below the crystallization temperatures. The alloys with x ≤ 15 transform into (α-Fe + amorphous) at about 600 K. The alloys with x15 transform into (α-Fe+amorphous+Fe3P) at about 600 K. With further heating, the alloys transform into (α-Fe+Fe3P) both of which are stable phases from the equilibrium phase diagram.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics