I-graphite block yenza nge-coke ye-petroleum yasekhaya ngaphansi kokukhulelwa kanye ne-graphitization yokushisa ephezulu.Izici zayo ziyi-self-lubrication enhle, amandla aphezulu, ukumelana nomthelela, ukumelana nokugqoka kanye ne-conductivity enhle kakhulu.Zisetshenziswa kabanzi emikhakheni efana nemishini, i-electronics, imboni yamakhemikhali nezinye izimboni ezintsha.