Jump to Content
Your Recent History
View Cart
LOG IN or SELECT A PURCHASE OPTION:
J. Chem. Phys. 7, 1103 (1939); http://dx.doi.org/10.1063/1.1750380 (10 pages)
Kinetics of Phase Change. I General Theory
(Received 5 July 1939)
Alerts
Alert Me When Cited
Alert Me When Corrected
Tools
Download Citation
Add to MyScitation
Permissions / Reprints
Blog This Article
Print-Friendly
Research Toolkit
Share
Email Abstract
Connotea
CiteULike
del.icio.us
BibSonomy
Tweet this Article
Add to FacebookThe theory of the kinetics 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. The density of germ nuclei diminishes through activation of some of them to become growth nuclei for grains of the new phase, and ingestion of others by these growing grains. The quantitative relations between the density of germ nuclei, growth nuclei, and transformed volume are derived and expressed in terms of a characteristic time scale for any given substance and process. The geometry and kinetics of a crystal aggregate are studied from this point of view, and it is shown that there is strong evidence of the existence, for any given substance, of an isokinetic range of temperatures and concentrations in which the characteristic kinetics of phase change remains the same. The determination of phase reaction kinetics is shown to depend upon the solution of a functional equation of a certain type. Some of the general properties of temperature‐time and transformation‐time curves, respectively, are described and explained.
EDITORIALLY RELATED
- Granulation, Phase Change, and Microstructure Kinetics of Phase Change. III
Melvin Avrami
J. Chem. Phys. 9, 177 (1941)JCPSA6000009000002000177000001 - Kinetics of Phase Change. II Transformation-Time Relations for Random Distribution of Nuclei
Melvin Avrami
J. Chem. Phys. 8, 212 (1940)JCPSA6000008000002000212000001
Related Articles
ARTICLE DATA
Digital Object Identifier
PUBLICATION DATA
For access to citing articles, you need to log in.
This Publication
Scitation
SPIN
Google Scholar
PubMed