Cauchy relation in relaxing liquids |
| |
Authors: | Fioretto Daniele Corezzi Silvia Caponi Silvia Scarponi Filippo Monaco Giulio Fontana Aldo Palmieri Luciano |
| |
Institution: | CNISM-Dipartimento di Fisica, Università di Perugia, via Pascoli, I-06123 Perugia, Italy. fioretto@fisica.unipg.it |
| |
Abstract: | The Cauchy-like relation M(infinity) = A + BG(infinity) has recently been found to hold for the high frequency limit values of the longitudinal modulus M(infinity) and transverse modulus G(infinity) of viscoelastic liquids, with B approximately 3 in all the investigated systems. The Brillouin scattering results here reported for curing epoxy systems and thermal glass formers give evidence for the validity of a Cauchy-like relation M(') = A + BG(') for the real part of the elastic moduli measured at finite frequencies. Our results suggest as well the validity of a pure Cauchy relation DeltaM = 3 DeltaG for the relaxation strengths of longitudinal and shear moduli in relaxing liquids. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|