List of Articles nickel ferrite Open Access Article Abstract Page Full-Text 1 - Synthesis of NiO and NiFe2O4 nanoparticles by ultrasonic method and investigation of microhardness of polymer composites made with these nanoparticles and epoxy resin Narjes Karim jabber jaber Mohammad Moarrefi romeileh Nasrin ghazkoob 20.1001.1.27834107.2022.12.4.5.7