ultrasonic preparation of cobalt, nickel, copper ferrite nanoparticles and investigation of mechanical properties ferrites polymer matrix nanocomposites

In this study, cobalt, nickel, and copper ferrites nanoparticles were first synthesized using the ultrasonic method. in the next step, the nanoparticles were subjected to various analyzes such as x-ray diffraction pattern (xrd), scanning electron microscope (sem), and infrared absorption spectroscopy (ir) to ensure their proper properties. in the next step, nanoparticles were added to the epoxy resin to make a polymer-based nanocomposite. then, according to astm d638 standard, the samples were stretched and the results were compared with pure epoxy polymer. the results showed that the nanoparticles were made with a fine and uniform structure and high purity. the tensile test results showed that by adding these nanoparticles to the epoxy resin, the ultimate tensile strength (uts) and the toughness of the nanocomposites improved compared to the epoxy polymer. the highest ultimate tensile strength was obtained in nanocomposites made of nickel ferrite nanoparticles whereas the highest toughness was obtained in nanocomposites made of copper ferrite nanoparticles.