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|Title:||Study of frequency dependence modulus of bulk amorphous alloys around the glass transition by dynamic mechanical analysis|
|Keywords:||B. Glasses, metallic|
B. Thermal stability
F. Mechanical testing
|Citation:||Lee, M.L., Li, Y., Feng, Y.P., Carter, C.W. (2002-11). Study of frequency dependence modulus of bulk amorphous alloys around the glass transition by dynamic mechanical analysis. Intermetallics 10 (11-12) : 1061-1064. ScholarBank@NUS Repository. https://doi.org/10.1016/S0966-9795(02)00143-7|
|Abstract:||A Dynamic Mechanical Analyzer (DMA) was used to study the frequency dependence of storage and loss moduli of amorphous Pd40Ni10Cu30P20 and La55Al25Cu10Ni5Co5 alloys over a broad frequency range around their glass transition temperatures. The amorphous samples were subjected to continuous heating at a constant frequency. Their storage moduli, E′, exhibited a similar sigmoidal change from a high solid state value to a low value of a supercooled liquid over the glass transition region but decaying at a different degree. The loss moduli, E″, were characterized by a relaxation peak. The peak frequencies obtained were then fitted to the Vogel-Fulcher-Tamman (VFT) equation and the scaling law equation. © 2002 Elsevier Science Ltd. All rights reserved.|
|Appears in Collections:||Staff Publications|
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