Journal ArticleDOI
Die Keimbildung bei der Ausscheidung in metallischen Mischkristallen
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In this article, ausscheidung in einem ubersattigten binaren Mischkristall is considered, das die Energie eines Misch-kristalls durch einfache Addition of Nachbarbindungen berechnet werden darf.Abstract:
Unter der Annahme, das die Energie eines Mischkristalls durch einfache Addition von Nachbarbindungen berechnet werden darf, wird die Keimbildungsarbeit fur die Ausscheidung in einem ubersattigten binaren Mischkristall berechnet. Daraus last sich die Haufigkeit der Keimbildung bestimmen. Aus der Durchrechnung eines Zahlenbeispiels ergibt sich fur diejenige Unterkuhlung, bei welcher die Keimbildungshaufigkeit ihr Maximum erreicht, eine befriedigende Ubereinstimmung mit vorliegenden Messungen uber die Geschwindigkeit der Ausscheidung.read more
Citations
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Journal ArticleDOI
Kinetics of Phase Change. I General Theory
TL;DR: In this paper, the theory of phase change is developed with the experimentally supported assumptions that the new phase is nucleated by germ nuclei which already exist in the old phase, and whose number can be altered by previous treatment.
Journal ArticleDOI
Free Energy of a Nonuniform System. I. Interfacial Free Energy
John W. Cahn,John E. Hilliard +1 more
TL;DR: In this article, it was shown that the thickness of the interface increases with increasing temperature and becomes infinite at the critical temperature Tc, and that at a temperature T just below Tc the interfacial free energy σ is proportional to (T c −T) 3 2.
Journal ArticleDOI
Rate of Nucleation in Condensed Systems
D. Turnbull,J. C. Fisher +1 more
TL;DR: On the basis of the nucleation theory developed by Volmer, Becker, and co-workers, and the theory of absolute reaction rates, an expression for the absolute rate of nucleation in condensed systems was derived in this paper.
Journal ArticleDOI
Free Energy of a Nonuniform System. III. Nucleation in a Two‐Component Incompressible Fluid
John W. Cahn,John E. Hilliard +1 more
TL;DR: In this article, the saddle point in the expression derived in Paper I (see reference 8) for the free energy of a nonuniform system was used to derive the properties of a critical nucleus in a two-component metastable fluid.
Journal ArticleDOI
Kinetics of phase change
TL;DR: The kinetic model for change of phases developed by M. Avrami at the end of the thirties has been used to describe the temporal behavior of phase changes as discussed by the authors.
References
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Journal ArticleDOI
Kinetische Behandlung der Keimbildung in übersättigten Dämpfen
Richard Becker,Werner Döring +1 more
Journal ArticleDOI
Keimbildung in übersättigten Gebilden
M. Volmer,Α. Weber +1 more
TL;DR: In this article, a beschreitende Weg geht auf Überlegungen of W. B. Gibbs zurück, die seither bei Behandlung der Keimbildungsfrage unbeachtet geblieben sind, obgleich sie eine Möglichkeit bieten, das Problem exakter anzufassen, als es bisher geschehen ist.
Journal ArticleDOI
Statistical Theory of Superlattices
TL;DR: In this paper, the effect of fluctuations in configuration, which was neglected by Bragg and Williams, was taken into account, which is similar to that used in Weiss's theory of ferromagnetism.
Journal ArticleDOI
The effect of thermal agitation on atomic arrangement in alloys
TL;DR: The binding forces in an alloy are predominantly those between the metal atoms of both kinds on the one hand and the common electronic system on the other hand, as opposed to the binding forces between atom and atom which predominate in other chemical compounds.