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My PhD work on anomalous grain growth in the Dullens group at Oxford has been accepted by PRX for publication. While the paper is still in press, you can still read the abstract by clicking here.
The Bechinger group will be officially starting at the University of Konstanz in October. Please visit the new website by clicking here.
Konstanz is a beautiful German old town close to the boarder with Switzerland and on the shores of the beautiful lake named after it. It is also a university town providing a very nice environment for studies and research.
We look at the segregation of impurities at grain boundaries in a two-dimensional colloidal system. Our impurities are interstitial or substitutional depending on their size ratio with the host particles, and thus mimic those encountered in real alloys. We measure the free energy of adsorption of impurities directly from our microscopy images and analyse their spatial distribution at grain boundaries. We find that impurities form clusters whose size distribution strongly d
epends on their substitutional or interstitial character, as a consequence of the interaction with the surrounding crystal lattice.
To read more about this, click here.