J. Delamare et al., STRUCTURAL INVESTIGATION OF THE METASTABLE COMPOUND A1 IN AN AS-CAST FE-ND EUTECTIC ALLOY, Journal of alloys and compounds, 216(2), 1995, pp. 273-280
In this paper some structural and chemical informations about the comp
ound A1 are given. Transmission electron microscopy investigations rev
eal that it is composed of a mixture of two nanocrystalline compounds
A1 alpha and A1 beta, with atomic compositions close to Nd20Fe80 and N
d40Fe60 respectively. Their formation is described in a metastable pha
se diagram including also NdFe2, and is confirmed by thermodynamic cal
culations on the basis of Miedema's model.