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Nanotalk - Atomic diffusivities in amorphous and liquid Cu-Zr metallic glasses: TEM studies

About this event

In this DENSsolutions Wildfire Nanotalk, Dr. Yurii Ivanov from the University of Cambridge presents his research on the use of in situ TEM to explore the atomic diffusivities in amorphous and liquid Cu-Zr metallic glasses.

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The Cu-Zr system is amongst the most studied binary glass-forming systems, yet has not been subject to any measurements of interdiffusion. It is of interest to correlate atomic diffusivities with changes in packing density that can be strongly dependent on composition.

During this Nanotalk, Dr. Yurii Ivanov presents a novel method for measuring atomic interdiffusivity in amorphous Cu-Zr metallic glass close to the glass-transition temperature Tg by both in-situ TEM and energy-dispersive X-ray spectroscopy. Specifically, he presents a direct observation of the Kirkendall drift of interlayer interfaces in both amorphous and supercooled liquid states (i.e. below and above Tg) and the associated voiding in the liquid. This voiding is particularly interesting for the controlled development of nanoscale porosity in a range of applications.

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Hosted by

  • Team member
    Lama Elboreini Marketing Communications Specialist @ DENSsolutions

  • Guest speaker
    Yurii P. Ivanov Research Associate @ University of Cambridge


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