Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 115 (Aug. 2006), p. 99-112
ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Different degrees of freedom exist in amorphous matter, and are at the origin ofrelaxation processes (e.g. structural, mechanical). The effect of physical aging of the glassynetwork on secondary and primary (and cooperative) relaxation is studied. It is shown that ifthe temperature of aging is below the liquid glass transition temperature and above that of thesecondary relaxation, the strength of this last relaxation changes in a non monotonouscomplex way while the characteristic time of the primary relaxation increases. This feature isexplained taking into account the heterogeneous nature of the glassy network. This concept isin agreement with recent inelastic light scattering observations showing that fluctuations ofthe elastic constants at the nanometric scale are characteristic of the glassy state
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.115.99.pdf
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