The recovery of the shear viscosity of thermally aged bulk and ribbon glassy Pd 40 Cu 30 Ni 10 P 20  by rapid quenching from the supercooled liquid state | Zendy

Khonik V. A. | Zendy; Lysenko A. V. | Zendy

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The recovery of the shear viscosity of thermally aged bulk and ribbon glassy Pd 40 Cu 30 Ni 10 P 20 by rapid quenching from the supercooled liquid state

Author(s) -

Khonik V. A.,

Lysenko A. V.

Publication year - 2009

Publication title -

physica status solidi (rrl) – rapid research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.786

H-Index - 68

eISSN - 1862-6270

pISSN - 1862-6254

DOI - 10.1002/pssr.200802238

Subject(s) - ribbon , supercooling , quenching (fluorescence) , viscosity , thermodynamics , materials science , glass transition , relaxation (psychology) , shear (geology) , analytical chemistry (journal) , composite material , chemistry , polymer , fluorescence , organic chemistry , optics , physics , psychology , social psychology

Isochronal (= linear heating) measurements of the shear viscosity below the glass transition of bulk and ribbon glassy Pd 40 Cu 30 Ni 10 P 20 samples differing ∼10 4 ‐fold in the production quenching rates have been performed. It has been found that heating up into the supercooled liquid region followed by slow cooling leads to a significant structural relaxation‐induced viscosity increase upon subsequent testing. This increase, however, is not truly irreversible and the viscosity can be fully recovered (= decreased) by fast quenching from the supercooled liquid state. The effect is nearly independent of whether ribbon or bulk samples are used despite the fact that those latter are notably denser. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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