Thermomagnetic detection of recrystallization in FeCoNbBCu nanocrystalline alloys

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Autor:	Blázquez Gámez, Javier Sebastián Conde Amiano, Clara Francisca Conde Amiano, Alejandro
Departamento:	Universidad de Sevilla. Departamento de Física de la Materia Condensada
Fecha:	2001
Publicado en:	Applied Physics Letters, 79 (18), 2898-2900
Tipo de documento:	Artículo
Resumen:	The recrystallization process in FeCoNbBCu nanocrystallinealloys is evidenced from thermomagnetic results as a significant decrease in magnetization at the second crystallization stage. The lowering in the volume fraction of α-FeCo crystals indicates that some of these crystals contribute to the boride phases formed. Electron microscopy images reveal that the final microstructure consists of large crystals (∼500 nm) of a fcc (FeCo)23B6(FeCo)23B6 phase and small crystals (∼20 nm) of bcc α-FeCo and of some boride phases as such (FeCo)2B.