Ageing Kinetics in Temperature Sensitive Thick Films Based on Spinel Ceramics

Ageing kinetics in thick films based on Cu
0.1
Ni
0.1
Co
1.6
Mn
1.2
O
4
spinel ceramics at temperature of 170 °C have been studied. Analytical description of processes in these materials was performed using five relaxation functions such as monomolecular, bimolecular, partly-generalized, DeBast-Gillard or Williams-Watts and fully-generalized. It is shown, that studied degradation kinetics are adequately described by DeBast-Gillard function in the form of compression-exponential relaxation with optimal number of fitting parametrs.