Details

Autor(en) / Beteiligte

• Pelletier, J.M
• Perez, J
• Soubeyroux, J.L

Titel

Physical properties of bulk amorphous glasses: influence of physical aging and onset of crystallisation

Ist Teil von

• Journal of non-crystalline solids, 2000-09, Vol.274 (1), p.301-306

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2000

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• Measurements of the dynamic shear modulus and of the internal friction are performed in a bulk amorphous Zr 57–Ti 5–Cu 20–Ni 8–Al 10 (at.%) alloy, both during heating and cooling with different cooling rates and different frequencies. The kinetic aspect of the glass transition is demonstrated. The onset of the crystallisation process induces a modulus increase and an internal friction decrease, due to the decrease of the atomic mobility resulting from the crystallisation process. Experimental results are well described using a physical model of the mechanical response of the amorphous material and especially of the characteristic times of the atomic mobility.