Distribution of relaxation times during accelerated thermal aging of insulating nanofluids

This paper deals with the dynamics of the distribution of relaxation times in the investigated fluids with two different types of dispersed nanoparticles during accelerated thermal aging. The introduction reflects an overview of the use of progressive nanofluids, followed by an explanation of production methodology. The results are analyzed by frequency-dependent dielectric spectroscopy in the frequency band and using the ColeCole principle to determine the degree of distribution of relaxation times. The analysis contains an electrophysical description of captured relaxation processes with a specific origin, which causes a dielectric response to the AC electric field.