Preparation method of graphene iron-based composite material

The invention discloses a preparation method of a graphene iron-based composite material, and the method comprises the following steps: (1) cutting stainless steel into metal plates, and pretreating with corundum gauze; (2) cutting the ceramic wafer into a required sample, and roughening the surface of the ceramic wafer by using abrasive paper; (3) placing stainless steel in an induction heating machine, placing a ceramic wafer on the steel sheet, scattering graphite powder on one surface of the polished ceramic wafer, and then placing another ceramic wafer on the graphite powder; (4) heatingthe sample; (5) after heating, putting the mixture and potassium ferrate into a polyurethane spheroidal graphite tank for wet ball milling; (6) putting the mixed powder subjected to ball milling intoa vacuum drying oven for drying; (7) carrying out dry ball milling on the dried mixed powder again to finally obtain the required sample. According to the method, an induction thermal decomposition mode is added, and graphite