One step synthesis of ZrO2 nanopowders dispersed with
01/11/2021· Graphite powders were wet milled in a planetary ball mill MTI SFM 1 with zirconia powders at a low speed of 300 rpm for different durations 3 10 20 30 40 and 50 h to obtain high quality graphene The low rotary speed of wet ball milling was set to ensure the integrity of graphene The mixed powders 2 g and ball milling solvents 10