Influence of Sonication on the Stability and Thermal Properties of Al₂O₃ Nanofluids

Figure 2

0.5 wt% Al₂O₃ nanofluids 30 days after formulation; right to left are nanofluids prepared from NPs of sizes A and B using the bath (numbers 1 and 3) and probe (numbers 2 and 4) sonicators.