Naslov
Characterization of partially crystalline metallic glass ZrCu

Autori
Hrvat, Kerim ; Lozančić, Matej ; Salčinović Fetić, Amra ; Sulejmanović, Suada

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Bulletin of the Chemists and Technologists of Bosnia and Herzegovina / Korać, Fehim - Sarajevo : Prirodno-matematički fakultet u Sarajevu, 2014, 169-169

Skup
Congress of Chemists and Chemical Engineers of Bosnia and Herzegovina with International Participation

Mjesto i datum
Sarajevo, Bosna i Hercegovina, 10.10.2014. - 12.10.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
djelimično kristalna metalna stakla ; melt-spining metoda ; kristalizacija ; aktivaciona energija
(partially crystalline metallic glass ; melt-spinning method ; crystallization ; activation energy)

Sažetak
The partially crystalline metallic glasses Zr45Cu55 and Zr55Cu45 (numbers indicate at. %) in the form of ribbons, with compositions near eutectics, were prepared by melt-spinning method in the Metal Physics Laboratory, Faculty of Science in Sarajevo.. The homogeneity and chemical composition of the samples were examined using a scanning electron microscope equipped with a device for energy dispersive analysis. The presence of crystals in the amorphous matrix was confirmed by X-ray diffraction (XRD). According to the XRD results, both sides of the quenched ribbon showed similar structure. The crystallization process was monitored by means of differential scanning calorimetry. Kinetics of the crystallization process was studied through isoconversional methods. It was found that peak crystallization temperature and activation energies are in good agreement with those for the amorphous samples. Overall activation energy of crystallization for Zr45Cu55 is evaluated at 3, 7 eV, while for Zr55Cu45 it is 2, 8 eV.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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