Sep 12 – 17, 2010
Europe/Zurich timezone
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Thermal Evolution of Short Range Order in Cu-Hf-Based Amorphous Alloys

Not scheduled
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium


CH - 1211 Geneva 23 Switzerland
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POSTER Semiconductors, Metals and Insulators


Dr Laura C. Damonte (UNLP)


amorphous metallic alloys


Cu-based ternary metallic glasses are promising for practical applications since they joint together interesting mechanical properties like strong glass-forming ability, high strength, ductility and low cost. For the Cu-Zr(Hf)-Ti system, Ti addition increases the glass forming ability of the alloy while diminishes its glass transition temperature, Tg, but improves its mechanical properties. From the point of view of the glass forming ability, it is important not only the structural characterization of the starting amorphous alloys but the stable and metastable crystalline phases formed at each crystallization step as well. In this sense, we are interested in look forward a relationship between short range order, i.e different crystalline phases, and mechanical properties.
We present here a Perturbed Angular Correlation (PAC) study on these amorphous alloy series, prepared by melt-spinning, with different copper and titanium content.
The electric field gradient (EFG) thermal evolution is analyzed in order to characterize the intermediate and final phases.

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