Coercivity effects of iron microcrystals in amorphous Fe81B13.5Si3.5 C2

Publisher Website
Google Scholar
Abstract
Primary crystallization of the titled alloy (Metglas 2605SC) occurs as dendritic microcrystals of αFe, which have cause a large increase in coercivity. This paper reports transmission electron microscopy measurements of the average length and number density of iron crystals as a function of annealing. The dendrites initially lengthen isothermally at a constant rate governed by an activation energy of (230±20) kJ/mole. The coercivity increases linearly with mean crystallite dimension between 0.1 and 0.6 μm, and stronger than linearly above 0.6 μm.

This publication has 3 references indexed in Scilit: