Article ID Journal Published Year Pages File Type
1600744 Intermetallics 2011 5 Pages PDF
Abstract

The relaxation behaviors of Ce65Al10Cu20Co5 and Zr46.75Ti8.25Cu7.5Ni10Be27.5 (Vit4) bulk glass-forming supercooled liquids were investigated by frequency-dependent heat capacity measurements on a temperature-modulated differential scanning calorimetry (TMDSC) apparatus. The relaxation behaviors of the investigated samples were well described by Kohlrausch–Williams–Watts (KWW) function. The temperature dependences of characteristic relaxation time of the glass-forming liquids were fitted by Vogel–Fulcher–Tamman (VFT) equation. The derived fragility index m shows that Ce65Al10Cu20Co5 (m = 31) liquid is a stronger liquid than Vit4 (m = 42). The sizes of cooperatively rearranging region (CRR) for Ce65Al10Cu20Co5 and Vit4 liquids were estimated to be 1.6 and 1.4 nm, respectively.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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