An understanding of the kinetics of the crystallization process is important for the selection of processing parameters such as mold temperature and hold time during injection molding. Differential scanning calorimetry (DSC), is an excellent tool for following the progress of crystallization. A popular method for obtaining kinetics data known as isothermal crystallization, is based on rapidly c...

It is quite frequent for a number of solid–state transformations to occur concurrently, starting from the same parent phase. The transformations may occur at different rates, but the resulting competition for space or for the partitioning of driving force between the precipitating phases can be seminal to the development of many microstructures found in commercial alloys. This paper reviews the...

Cocoa butter is the characteristic fat ingredient of chocolate industries, presenting itself as the most important component in all formulations. Its crystallization is a critical factor associated with the structure and properties of many confectionery foods. The stability of rich-fat processed products is influenced by changes in crystallization processes. With respect to these characteristic...

In situ high-temperature X-ray diffraction was used to investigate the reaction mechanism and kinetics of CuGaSe2 formation from Cu–Ga precursors during selenization. The precursor films were deposited in a migration enhanced molecular beam epitaxial reactor on Mo-coated thin glass substrates. During the selenization CuSe forms in the temperature range of approximately 260 to 370 °C, and the on...

Morphological models for polymer crystallization under isothermal and temperature gradient conditions with a particle level set method are proposed. In these models, the particle level set method is used to improve the accuracy in studying crystal interaction. The predicted development of crystallinity during crystallization under quiescent isothermal condition by our model is reanalyzed with t...

Motivated by a recent application of the Kolmogorov-Johnson-Mehl-Avrami (KJMA) model to the study of DNA replication, we consider the one-dimensional (1D) version of this model. We generalize previous work to the case where the nucleation rate is an arbitrary function I (t) and obtain analytical results for the time-dependent distributions of various quantities (such as the island distribution)...

The exact renormalization group is applied to a nonlinear diffusion equation with a discontinuous diffusion coefficient. The generating functional of the solution for the initial-value problem of nonlinear diffusion equations is first introduced, and next a regularization scheme is presented. It is shown that the renormalization of an action functional in the generating functional leads to an a...