Heterogeneous two-dimensional nucleation and growth kinetics

Liu, X. Y.; Maiwa, Koji; Tsukamoto, Katsuo

doi:10.1063/1.473325

Cited by 114 publications

(104 citation statements)

References 9 publications

Supporting

Mentioning

103

Contrasting

Order By: Relevance

“…Liu et al [23] introduced the ratio x, where x = R s / ρ c , R s (m) is the average radius of the deposited foreign solid particles on the surface of the growing crystal, which remains constant during the growth. The proposed function f(m,x) = 1 when x → 0.…”

Section: Resultsmentioning

confidence: 99%

Metastable zone width for secondary nucleation and secondary nucleation inside the metastable zone

Khaddour¹,

Rocha²

2011

Cryst. Res. Technol.

View full text Add to dashboard Cite

Key words metastable zone width, interfacial free energy, nucleation, growth from solution.This study presents an evaluation of a new method, called zero growth activation free energy, used to determine the metastable zone width for the secondary nucleation case. It predicts the metastable zone width with a maximum error of 5-10%. Estimation of the metastable zone width for different isothermal crystallization conditions can be modeled according to a chosen reference set of growth experiments carried out in the volume diffusion regime at different initial supersaturations, using seed crystals of a certain characteristic size. Moreover, the activation free energy of the secondary nucleation was estimated. The role of the enthalpy of immersion in the formation of secondary nucleation events inside the metastable zone was pointed out, as well as its effect in causing extra-fast growth rate. Furthermore, sucrose crystal surface free energy was estimated.

show abstract

Section: Resultsmentioning

confidence: 99%

Metastable zone width for secondary nucleation and secondary nucleation inside the metastable zone

Khaddour¹,

Rocha²

2011

Cryst. Res. Technol.

View full text Add to dashboard Cite

show abstract

“…Various aspects of the 2-D growth have been studied. In particular, nucleation of new layers has been studied intensively, because it plays the rate control role in most of twodimensional growth processes [2][3][4]. Similarly, the problem of subsequent growth of nuclei has been studied intensively [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

A Monte Carlo study of the dependence of the habits of Kossel crystal on dynamic parameters during two‐dimensional growth

Prywer

Krukowski²

2005

Cryst. Res. Technol.

View full text Add to dashboard Cite

We present the Monte Carlo simulation results, demonstrating that the habit of two-dimensional growth of Kossel crystals depends on supersaturation and surface diffusion barrier. It is shown that at very small supersaturation, the surface diffusion plays dominant role and controls the resulting growth shapes. At higher supersaturation the growth habit is universal and does not depend on surface diffusion rates. Further increase of the supersaturation leads to unstable growth morphologies. These Monte Carlo results are analyzed using SHAPE package in order to derive the relative growth rates along different crystallographic directions. Using these data the dependence of the growth habit on the energetic parameters: bond energy and temperature and dynamic parameters: supersaturation and surface diffusion is given.

show abstract

“…Impurity sorbants can interfere with addition of new species to a growth step, hence poisoning the growth (Van Enckevort et al, 1996;Kubota and Mullin, 1995). Impurities can also affect growth of secondary phases by influencing nucleation kinetics (Liu et al, 1997). In growth from a melt or aqueous solution the interface structure is also highly dependent on diffusion of species to the interface.…”

Section: Growth Morphologiesmentioning

confidence: 99%

Nucleation, Growth, and Aggregation of Mineral Phases: Mechanisms and Kinetic Controls

Benning

Waychunas

2008

Kinetics of Water-Rock Interaction

View full text Add to dashboard Cite

The formation of any phase, whether natural or synthetic (Fig. 7.1), is usually a disequilibrium process that follows a series of steps until a thermodynamically stable state (equilibrium) is achieved. The first step in the process of creating a new solid phase from a supersaturated solution (either aqueous or solid) is called nucleation. A particle formed by the event of nucleation usually has a poorly ordered and often highly hydrated structure. This particle is metastable with respect to ordering into a well-defined phase, which can accompany growth of the particle. This process of initiation of a new phase is defined as a first order transition and can follow various pathways involving a host of mechanisms. One of these pathways occurs when individual nuclei coalesce into larger clusters, a process defined as aggregation, which itself can follow a series of different pathways. The new phase is thermodynamically defined when the growing nucleus or aggregate has distinct properties relative to its host matrix; for example, a well-defined crystal structure, composition and/or density. These processes depend on a plethora of chemical and physical parameters that control and strongly affect the formation of new nuclei, the growth of a new crystal, or the aggregation behavior of clusters, and it is these issues that will be the focus of this chapter. We will discuss the mechanisms and rates of each process as well as the methods of quantification or modeling from the point of view of existing theoretical understanding. Each step will be illustrated with natural examples or laboratory experimental quantifications. Complementary to the information in this chapter, a detailed analysis of the mechanisms and processes that govern dissolution of a phase are discussed in detail in Chap. 5 and more detailed information about molecular modeling approaches are outlined in Chap. 2.

show abstract

Heterogeneous two-dimensional nucleation and growth kinetics

Cited by 114 publications

References 9 publications

Metastable zone width for secondary nucleation and secondary nucleation inside the metastable zone

Metastable zone width for secondary nucleation and secondary nucleation inside the metastable zone

A Monte Carlo study of the dependence of the habits of Kossel crystal on dynamic parameters during two‐dimensional growth

Nucleation, Growth, and Aggregation of Mineral Phases: Mechanisms and Kinetic Controls

Contact Info

Product

Resources

About