Scientific Events

Speaker: Dr. Yolita M. Eggeler

Using analytical electron microscopy to study microstructural evolution and its effect on structural & functional properties

Using analytical electron microscopy to study microstructural evolution and its effect on structural & functional properties
Analytical electron microscopy is applied to study elementary processes which govern micro- and nanostructural evolution and their effect on structural and functional properties in two-phase material systems. Modern computational alloy design for application relevant blade materials operating at high temperatures require reliable diffusion data, which consider the realistic superalloy condition. A new method will be presented to study diffusion kinetics in compositionally complex superalloys using intrinsic nano-diffusion-couples that are exposed to in situ and ex situ annealing experiments. Magnetic two-phase Heusler compounds are fascinating because they enable to study the influence of misfit induced strain gradients at interfaces on magnetic texture formation. Micro-engineering of misfit induced strains into a functional magnetic composite represents a novel approach which may well pave the way towards a new era of exploiting flexomagnetism, an area which has yet to be explored experimentally. [more]
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