Springer LINK: The European Physical Journal B - Abstract Volume 5 Issue 1 (1998) pp 1-5

The European Physical Journal B

ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)

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Abstract Volume 5 Issue 1 (1998) pp 1-5

Shear modulus and compliance in the range of the dynamic glass transition for metallic glasses

K. Schröter (1) (a), G. Wilde (2), R. Willnecker (2), M. Weiss (3), K. Samwer (3), E. Donth (1)

(1) Fachbereich Physik, Martin-Luther-University Halle-Wittenberg, 06099 Halle (Saale), Germany
(2) Institut für Raumsimulation, DLR Köln, 51140 Köln, Germany
(3) Institut für Physik, Universität Augsburg, 86135 Augsburg, Germany

Received: 17 December 1997 / Accepted: 26 May 1998

Abstract: The dynamic shear modulus and compliance of the dynamic glass transition were investigated in two metallic glasses (Pd₄₀Ni₄₀P₂₀ and Zr₆₅Al_7.5Cu_17.5Ni₁₀). Isothermal measurements over four frequency decades enable the determination of shape parameters for the proper glass transition. The real part of the dynamic shear compliance shows a step height of approximately a factor of 2.6 for Pd₄₀Ni₄₀P₂₀, comparable to low molecular weight glass formers or the segmental mode as part of the glass transition in high molecular weight polymers. The frequency dependence of the imaginary part of the shear compliance at the high frequency side of the peak shows an exponent near the Andrade value of 1/3.

PACS. 64.70.Pf Glass transitions - 62.20.-x Mechanical properties of solids - 61.43.Dq Amorphous semiconductors, metals, and alloys

(a) email: k.schroeter@physik.uni-halle.de

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