Model for the Nucleation and Diffusion-Controlled Growth of Binary Alloy Nuclei under Potentiostatic Conditions

2020 ◽  
Vol 2020 (8) ◽  
pp. 914-917
Author(s):  
O. V. Grishenkova ◽  
A. V. Kosov ◽  
Yu. P. Zaikov ◽  
V. A. Isaev
Keyword(s):  
Binary Alloy ◽  
Controlled Growth ◽  
Diffusion Controlled ◽  
And Diffusion

Refinement of Size Distributions for Primary Crystallizations

1997 ◽  
Vol 481 ◽  
Author(s):  
E. Pineda ◽  
T. Pradell ◽  
D. Crespo ◽  
N. Clavaguera ◽  
J. ZHU ◽  
...  
Keyword(s):  
Grain Size ◽  
Metastable Phase ◽  
Primary Crystallization ◽  
Controlled Growth ◽  
Diffusion Controlled ◽  
Average Grain Size ◽  
Soft Impingement ◽  
Single Grain ◽  
Kinetics Of ◽  
And Diffusion

ABSTRACTThe microstructure developed in primary crystallizations is studied under realistic conditions. The primary crystallization of an amorphous alloy is modeled by considering the thermodynamics of a metastable phase transition and the kinetics of nucleation and crystal growth under isothermal annealing. A realistic growth rate, including an interface controlled growth at the beginning of the growth of each single grain and diffusion controlled growth process with soft impingement afterwards is considered. The reduction in the nucleation rate due to the compositional change in the remaining amorphous matrix is also taken into account. The microstructures developed during the transformation are obtained by using the Populational KJMA method, from the above thermodynamic and kinetic factors. Experimental data of transformed fraction, grain density, average grain size, grain size distribution and other related parameters obtained from annealed metallic glasses are modeled.

Current transient study of the kinetics of nucleation and diffusion-controlled growth of bimetallic phases

2012 ◽  
Vol 17 (2) ◽  
pp. 345-351 ◽  
Author(s):  
Oscar Díaz-Morales ◽  
Jorge Mostany ◽  
Carlos Borrás ◽  
Benjamin R. Scharifker
Keyword(s):  
Current Transient ◽  
Controlled Growth ◽  
Diffusion Controlled ◽  
Transient Study ◽  
Kinetics Of ◽  
And Diffusion

The current transient for nucleation and diffusion-controlled growth of spherical caps

2008 ◽  
Vol 13 (4) ◽  
pp. 565-571 ◽  
Author(s):  
Daniel Branco P. ◽  
Jorge Mostany ◽  
Carlos Borrás ◽  
Benjamin R. Scharifker
Keyword(s):  
Current Transient ◽  
Controlled Growth ◽  
Diffusion Controlled ◽  
Spherical Caps ◽  
And Diffusion

Nucleation and diffusion-controlled growth of electroactive centers

2005 ◽  
Vol 50 (24) ◽  
pp. 4736-4745 ◽  
Author(s):  
M. Palomar-Pardavé ◽  
B.R. Scharifker ◽  
E.M. Arce ◽  
M. Romero-Romo
Keyword(s):  
Controlled Growth ◽  
Diffusion Controlled ◽  
And Diffusion

Olivine–wadsleyite–pyroxene topotaxy: Evidence for coherent nucleation and diffusion-controlled growth at the 410-km discontinuity

2012 ◽  
Vol 200-201 ◽  
pp. 85-91 ◽  
Author(s):  
Joseph R. Smyth ◽  
Nobuyoshi Miyajima ◽  
Gary R. Huss ◽  
Eric Hellebrand ◽  
David C. Rubie ◽  
...  
Keyword(s):  
Controlled Growth ◽  
Diffusion Controlled ◽  
And Diffusion
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