Synthesis and frequency dependent ultrasonic characterization of NiO-EG nanofluids

Abstract

In the present paper, we have synthesized the NiO nanoparticles with chemical route. Further, the uniform suspensions of NiO nanoparticles in ethylene glycol of different concentrations have been prepared. Samples were characterized with Acoustical Particle Sizer (APS-100) for the frequency dependent ultrasonic attenuation in the respective samples; subsequently the particle size determination and their distribution have been determined with help of ultrasonic attenuation. The morphological parameters were also investigated with the microscopic techniques. There is good agreement between data produced by ultrasonic spectroscopy and the microscopic measurements. © 2013 Acoustical Society of America.