caa a22 4500 467943672 CHVBK 20180322200724.0 cr unu---uuuuu 170328e19861001xx s 000 0 eng 10.1007/BF02403006 doi (NATIONALLICENCE)springer-10.1007/BF02403006 (NATIONALLICENCE)springer-10.1007/BF00553804 Determination of the activation energies for nucleation and growth of crystal nuclei in metallic glasses [Elektronische Daten] [Q. Wu, M. Harmelin, J. Bigot, G. Martin] A mathematical procedure is proposed in order to determine separately the activation energy for nucleation,E n, and for growth,E g, from isothermal crystallization experiments on metallic glasses. Differential scanning calorimetry (DSC) is used in the isothermal mode to estimate the crystalline fraction as a function of time. The model deals only with polymorphic and eutectic growth. Cu60Zr40 amorphous alloys produced with different quenching rates are taken as an example for demonstrating the ability of the proposed method. It is shown that the number of pre-nuclei can be related to the conditions of the initial quench. Chapman and Hall Ltd, 1986 Wu Q. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut Harmelin M. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut Bigot J. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut Martin G. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut Journal of Materials Science Kluwer Academic Publishers 21/10(1986-10-01), 3581-3589 0022-2461 21:10<3581 1986 21 10853 https://doi.org/10.1007/BF02403006 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02403006 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Q. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut NATIONALLICENCE 700 1- Harmelin M. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut NATIONALLICENCE 700 1- Bigot J. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut NATIONALLICENCE 700 1- Martin G. CNRS, Centre d'Etudes de Chimie Métallurgique, 15 rue Georges Urbain, 94407, Vitry-sur-Seine Cedex, France aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers 21/10(1986-10-01), 3581-3589 0022-2461 21:10<3581 1986 21 10853 NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00553804 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer