Abstract | Keywords | Export | Availability | Bookmark

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

My PhD research is focused on hetero-junctions of dissimilar materials, for example, the integrated and composite material structures used in micro-electronic and photovoltaic devices.The growth of intermetallic compound (IMC) layers and precipitates at and near the interfaces is the main topic to study their influence on the reliability and life time of these devices.Research Activities:In the frame work of my PhD research, a combined modeling approach for the growth of IMC phases will be derived and implemented based on the phase-field method for microstructure evolution simulations and the CALPHAD method for the prediction of phase equilibria and thermodynamic properties in multi-component systems. The new simulation method will be used, integrated with experimental research, to study the growth of IMC layers and precipitates and predict diffusion paths in multi-component hetero-junctions of materials with 3 and 4 components.The major activities are listed as follows:- more extensive study of the existing phase-field models for alloys and CALPHAD approaches for Gibbs energies and diffusion mobilities- implementation and validation of coupled phase-field/CALPHAD approaches for intermediate phases with low solubility - application of the coupled phase-field/CALPHAD approach on microstructure evolution and interdiffusion in a ternary system- validation of of the coupled phase-field/CALPHAD approach on microstructure evolution and interdiffusion in a quaternary system