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1 Selected Engineering Problems

1 2014

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The influence of milling and interval time on the amorphizationprocess of Cu-Ti alloys

Guwer A., Nowosielski R., Gawlas-Mucha A., Kiljan A., Babilas R.

Selected Engineering Problems

2014

nr 5

47--52

The aim of this paper is describing a preparation, investigation and comparison of the structure size and shape of the Cu50Ti50 amorphous and nanocrystalline powders depending of the milling and interval time in cycle. The Cu50Ti50 alloy was obtained by mechanical alloying (MA) in a high energy ball mill SPEX 8000. The structure of Cu50Ti50 powders was examined by X-ray diffraction (XRD). Chemical composition, particle size and shape of the prepared powders was investigated by scanning electron microscopy (SEM). Amorphous Cu50Ti50 alloy can be prepared by a high energy ball milling. Milling and interval time determined an amorphization process of starting elements. The SEM analysis showed that the increase of milling time caused the increasing of powder particle size. The shape changing of the particles was also observed.