Breakdown properties of mineral oil-based nanofluids

A previous paper proved that conductive nanoparticles-based nanofluids have a better performance than the host mineral oil, but the obtained results still left doubts about their origin and if they are really statistically significant. In this work, we analyzed the impulse breakdown strength of different concentration nanofluids, and the effect moisture has on sinusoidal AC breakdown tests. The results highlight a concentration dependent behavior of the breakdown measurements, and a stronger resistance of nanofluids against moisture contamination.