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Fontana, M.; Arcondo, B.; Clavaguera-Mora, M.T.; Clavaguera, N. "Crystallization kinetics driven by two simultaneous modes of crystal growth" (2000) Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties. 80(10):1833-1856
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Abstract:

In this work, we analyse the growth of nuclei precipitating from a supersaturated liquid. Two simultaneous habits of crystal growth are considered: interface-controlled three-dimensional growth with a growth rate u up to a threshold radio Rc and then diffusion-controlled growth when steady growth is achieved at the initial stages owing to the large supersaturation in between the nucleus and the liquid neighbourhood. The threshold radio Rc determines the growth habit of each grain. For isothermal processes, we discover that the temporal dependence of the crystalline fraction follows scaling laws. Two parameters summarize the master curves: firstly, a dimensionless magnitude named P, where P = (π/3)IDeff4/u5, where Deff is the effective diffusion coefficient and I the nucleation frequency; secondly, the time tc needed by the first created embryo to reach the threshold radio Rc. At tc the growth switches from one mechanism to the other. These two quantities are also scaling factors for the temporal evolution of the density of grains and the mean grain size. We discuss the applicability of the model to real systems.

Registro:

Documento: Artículo
Título:Crystallization kinetics driven by two simultaneous modes of crystal growth
Autor:Fontana, M.; Arcondo, B.; Clavaguera-Mora, M.T.; Clavaguera, N.
Filiación:Laboratorio de Sólidos Amorfos, Departamento de Física, Universidad de Buenos Aires, Paseo Colon, 850-(1063) Buenos Aires, Argentina
Grup de Física Dels Materials I, Departament de Física, Universidad Autònoma de Barcelona, 08193-Bellaterra, Spain
Grup de Física de l'Estad Sòlid, Departament d'Estructura I Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, 08028-Barcelona, Spain
Año:2000
Volumen:80
Número:10
Página de inicio:1833
Página de fin:1856
DOI: http://dx.doi.org/10.1080/13642810008216509
Título revista:Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Título revista abreviado:Philos Mag B
ISSN:13642812
CODEN:PMABD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13642812_v80_n10_p1833_Fontana

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Citas:

---------- APA ----------
Fontana, M., Arcondo, B., Clavaguera-Mora, M.T. & Clavaguera, N. (2000) . Crystallization kinetics driven by two simultaneous modes of crystal growth. Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties, 80(10), 1833-1856.
http://dx.doi.org/10.1080/13642810008216509
---------- CHICAGO ----------
Fontana, M., Arcondo, B., Clavaguera-Mora, M.T., Clavaguera, N. "Crystallization kinetics driven by two simultaneous modes of crystal growth" . Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties 80, no. 10 (2000) : 1833-1856.
http://dx.doi.org/10.1080/13642810008216509
---------- MLA ----------
Fontana, M., Arcondo, B., Clavaguera-Mora, M.T., Clavaguera, N. "Crystallization kinetics driven by two simultaneous modes of crystal growth" . Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties, vol. 80, no. 10, 2000, pp. 1833-1856.
http://dx.doi.org/10.1080/13642810008216509
---------- VANCOUVER ----------
Fontana, M., Arcondo, B., Clavaguera-Mora, M.T., Clavaguera, N. Crystallization kinetics driven by two simultaneous modes of crystal growth. Philos Mag B. 2000;80(10):1833-1856.
http://dx.doi.org/10.1080/13642810008216509