Preparation and Characterization of Nanofluids as a Dielectric Fluid for Sustainable Machining Applications

Abstract

This study investigates the experimental, characterization, and optimization of CNT-based nanofluids to obtain desired outcomes for machining applications. Process parameters, such as CNT concentration, sonication time, and surfactant quantity percent, were optimized for the usage of ANOVA strategies. The highest zeta size of 98.5  nm was received with a mixture of 1 g/L CNT attention, 60 mins of probe sonication, and 0.2 vol% SDS surfactant, indicating improved nanofluid stability through reduced particle agglomeration. The very best zeta potential of - 46.5 mv, determined in experimental run 2, reflects robust repulsive forces between particles and progressed stability, even as the lowest zeta potential was -39 mv. Thermal conductivity values ranged from 0.324 W/mk to 0.421 W/mk, with the best outcomes observed in experimental run 12, demonstrating the potential of the nanofluid for the manufacturing field. The experimental results reveal the thermal strength of CNT-based nanofluids, making them useful and appropriate as dielectric fluids for sustainable advanced machining procedures. The findings affirm the effectiveness of tailor-made nanofluids in improving performance in sustainable advanced machining applications.