Spherulitic Nucleation and Growth Rates in an iPP under Continuous Shear Flow

2008 ◽  
Vol 41 (23) ◽  
pp. 9214-9223 ◽  
Author(s):  
I. Coccorullo ◽  
R. Pantani ◽  
G. Titomanlio
Keyword(s):  
Shear Flow ◽  
Growth Rates ◽  
Nucleation And Growth ◽  
Continuous Shear

Development of the Grain Size Distribution During the Crystallization of an Amorphous Solid

2011 ◽  
Vol 1308 ◽  
Author(s):  
Andreas Bill ◽  
Ralf B. Bergmann
Keyword(s):  
Grain Size ◽  
Size Distribution ◽  
Grain Size Distribution ◽  
Growth Rates ◽  
Amorphous Solid ◽  
Amorphous Solids ◽  
Nucleation And Growth ◽  
Analytic Description ◽  
Silicon Thin Films ◽  
Random Nucleation

ABSTRACTWe present an overview of the theory developed over the last few years to describe the crystallization of amorphous solids. The microstructure of the crystallizing solid is described in terms of the grain size distribution (GSD). We propose a partial differential equation that captures the physics of crystallization in random nucleation and growth processes. The analytic description is derived for isotropic and anisotropic growth rates and allows for the analysis of different stages of crystallization, from early to full crystallization. We show how the timedependence of effective nucleation and growth rates affect the final distribution. In particular, we demonstrate that for cases described by the Kolmogorov-Avrami-Mehl-Johnson (KAMJ) model applicable to a large class of crystallization processes a lognormal type distribution is obtained at full crystallization. The application of the theory to the crystallization of silicon thin films is discussed.

scholarly journals Solvent manipulation of the pre-reduction metal–ligand complex and particle-ligand binding for controlled synthesis of Pd nanoparticles

Nanoscale ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 206-217
Author(s):  
Wenhui Li ◽  
Michael G. Taylor ◽  
Dylan Bayerl ◽  
Saeed Mozaffari ◽  
Mudit Dixit ◽  
...  
Keyword(s):  
Ligand Binding ◽  
Growth Rates ◽  
Pd Nanoparticles ◽  
Nucleation And Growth ◽  
Controlled Synthesis ◽  
Ligand Complex ◽  
Metal Ligand

Understanding how to control the nucleation and growth rates is crucial for designing nanoparticles with specific sizes and shapes.

A new shear technique: Semi Continuous Shear Flow (SCSF) in medium and ultra high molecular weight Polyhydroxybutyrate blends

2006 ◽  
Vol 41 (17) ◽  
pp. 5687-5695 ◽  
Author(s):  
Lakshmi Sharma ◽  
Yoshino Ogino ◽  
Toshiji Kanaya ◽  
Tadahisa Iwata ◽  
Yoshiharu Doi
Keyword(s):  
Molecular Weight ◽  
Shear Flow ◽  
High Molecular Weight ◽  
Continuous Shear ◽  
Ultra High Molecular Weight

scholarly journals Нуклеация и рост зародышей новой фазы в гетерогенных реакциях

2019 ◽  
Vol 61 (12) ◽  
pp. 2412
Author(s):  
Н.М. Корценштейн
Keyword(s):  
Complex Systems ◽  
Condensed Phase ◽  
Growth Rates ◽  
Heterogeneous Reaction ◽  
Nucleation And Growth ◽  
Nucleation Theory ◽  
Classical Nucleation Theory ◽  
Definite Kind ◽  
Kinetics Of ◽  
Development Mechanism

Abstract Expressions for the nucleation and growth rates for condensed particles in a heterogeneous reaction of a definite kind have been derived, which allows the kinetics of the formation of the condensed phase in some complex systems to be described. Methods of the classical nucleation theory and an assumption about the reaction development mechanism were used.

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