Phase Field Modeling of the Zn_{1-x}Cd_xO Solid Solutions

• Authors: I. Shtepliuk , N. Podolskaia , G. Lashkarev
• Languages of publication: EN

Abstracts

EN

The analysis of spinodal decomposition in the Zn_{1-x}Cd_xO ternary alloy was carried out by means of the nonlinear Cahn-Hilliard equation. Interaction parameter as a function of composition x was provided by valence force field simulations and was used in this analysis. The morphological patterns for the ternary alloys with different Cd content (x=5, 10, 50%) were experimentally obtained using the semi-implicit Fourier-spectral method. The simulated microstructure evolution Zn_{0.95}Cd_{0.05}O demonstrates that the microstructure having a form of bicontinuous worm-like network is evolved with the progress of aging. An effect of the phase-field mobility and the gradient energy on the microstructure evolution of the Zn_{1-x}Cd_xO alloys is discussed. It was found that the higher driving force for the decomposition in the higher Cd content film results in a higher decomposition rate revealed by the simulations. The temporal evolution of the simulated Zn_{0.95}Cd_{0.05}O microstructure is in good agreement with experimental results, which have been obtained for this solid solution.

Keywords

EN

64.60.My; 05.70.Ln; 61.72.Bb; 61.72.Mm

Discipline

• 64.60.My: Metastable phases
• 61.72.Bb: Theories and models of crystal defects
• 61.72.Mm: Grain and twin boundaries
• 05.70.Ln: Nonequilibrium and irreversible thermodynamics(see also 82.40.Bj Oscillations, chaos, and bifurcations in physical chemistry and chemical physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 5
• Pages: 1079-1082

Dates

published

2014-11

Contributors

author

I. Shtepliuk

• Frantsevich Institute for Problems of Materials Science, NASU, 03680, Kiev, Ukraine
• Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linkoping, Sweden

author

N. Podolskaia

• Ioffe Physico-Technical Institute, RAS, Saint-Petersburg, Russia
• Saint-Petersburg Branch of Joint Supercomputer Center, RAS, Saint-Petersburg, Russia
• St. Petersburg Academic University, Khlopina 8/3, 194021 St. Petersburg, Russia

author

G. Lashkarev

• Frantsevich Institute for Problems of Materials Science, NASU, 03680, Kiev, Ukraine

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Identifiers

DOI

10.12693/APhysPolA.126.1079