Numéro
J. Phys. Colloques
Volume 47, Numéro C7, Novembre 1986
33rd International Field Emission Symposium / 33ème Symposium International d'Emission de Champ
Page(s) C7-205 - C7-209
DOI https://doi.org/10.1051/jphyscol:1986736
33rd International Field Emission Symposium / 33ème Symposium International d'Emission de Champ

J. Phys. Colloques 47 (1986) C7-205-C7-209

DOI: 10.1051/jphyscol:1986736

FIM-ATOM PROBE INVESTIGATIONS OF PERMANENT MAGNETIC MATERIALS

A. HÜTTEN1, 2 et P. HAASEN1, 2

1  Institut für Metallphysik, Universität Göttingen, D-3400 Göttingen, F.R.G.
2  Sonderforschungsbereich 126, D-3392 Clausthal-Zellerfeld, (Göttingen), F.R.G.


Abstract
The kinetics of the decomposition reaction of AlNiCo 5 has been investigated using Field Ion Microscopy (FIM) and Atom Probe (AP) techniques. At the aging temperature of 680 °C the decomposition reaction is spinodal in character. The observed coarsening data of the resulting isotropically interconnected phases follows t0.23 kinetics. Furthermore the compositions of the two phases were obtained and are presented in this paper.