Figure 5From: Rheological non-Newtonian behaviour of ethylene glycol-based Fe2O3 nanofluids Damping factor (tg δ ). As a function of frequency at 1% strain for various concentrations of EG/Fe2O3 nanofluids: empty circle, 5 wt.%; empty inverted triangle, 10 wt.%; empty square, 15 wt.%; empty diamond, 20 wt.%; and empty triangle, 25 wt.%. The inset shows maximum damping factor as a function of the weight concentration of nanofluids.Back to article page