Title :
Models of relaxation processes exhibiting compensation law behavior
Author :
Wysocksi, S. ; Fouracre, R.A.
Author_Institution :
Inst. of Food Chem., Tech. Univ., Lodz, Poland
Abstract :
A linear relationship between the activation entropy ΔS and the activation enthalpy ΔH for a particular process is known as a compensation law. Crine (1984,1989,1991) has proposed a thermodynamic model for the compensation law based in part on the reaction rate theory of Eyring and has used such a model to interpret the aging compensation law reported by David (1987) and by Montanari (1988). Following Crine, the compensation law is derived using thermodynamic arguments and an expression for the frequency term is derived using two simplified models relating to relaxation processes, one considering microscopic parameters and the other macroscopic parameters
Keywords :
chemical relaxation; compensation; dielectric relaxation; enthalpy; entropy of substances; reaction kinetics theory; reaction rate constants; Eyring theory; activation enthalpy; activation entropy; compensation law; frequency term; macroscopic parameters; microscopic parameters; reaction rate theory; relaxation process model; thermodynamic model; Energy barrier; Taylor series; Temperature;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0565-5
DOI :
10.1109/CEIDP.1992.283232
