Journal of Chemical Thermodynamics, Vol.65, 78-82, 2013
Thermodynamic measurement of Dy+Fe binary system by double Knudsen cell mass spectrometry
The activities of Dy in Dy-Fe alloys with Dy concentrations ranging from (7.0 to 89) at% were determined at (1273 to 1573) K by measuring the ion current of the vapor of Dy in equilibrium with Dy-Fe melts, Dy2Fe17 + gamma Fe, etc. The standard Gibbs energy of formation of Dy2Fe17, Dy6Fe23, DyFe3, and DyFe2 were calculated from the activities of Dy obtained from these measurements. Crown Copyright (c) 2013 Published by Elsevier Ltd. All rights reserved.