AbstractsPhysics

A brief critique of the Adam-Gibbs entropy model

by Kristine Niss




Institution: Roskilde University
Department:
Year: 2009
Keywords: Glass formation; Glass transition
Record ID: 1120883
Full text PDF: http://milne.ruc.dk/~dyre/2009_JNCS_355_624.pdf


Abstract

This paper critically discusses the entropy model proposed by Adam and Gibbs in 1965 for the dramatic temperature dependence of glass-forming liquids' average relaxation time, which is one of the most influential models during the last four decades. We discuss the Adam-Gibbs model's theoretical bases as well as its reported experimental model confirmations; in the process of doing this a number of problems with the model are identified