▎ 摘　　要

NOVELTY - Magnetic material comprises main material and dopant. The main material comprises 43.83-46.34 pts. wt. ferric oxide, 23.57-28.54 pts. wt. magnesium oxide, 7.54-8.80 pts. wt. copper oxide, 3.62-5.43 pts. wt. cobalt oxide, 2.63-2.69 pts. wt. nickel-iron slag powder and 1.20-1.28 pts. wt. lithium slag powder. The dopant comprises first auxiliary component, which is a mixture of carboxylated graphene, calcium carbonate and cobalt oxide at 0.2:1:2-3 weight ratio, where first auxiliary component is added at 0.7-0.8 wt.% based on the weight of the main material, and second auxiliary component, which is a mixture of vanadium pentoxide and lithium carbonate at at 1:1-2 weight ratio, where second auxiliary component is added at 0.8-1 wt.% based on the weight of the main material. USE - Magnetic material. ADVANTAGE - The magnetic material saves the raw materials while achieving optimal performance at lowest cost. It has excellent high-frequency characteristics, excellent direct current superposition characteristics and good mechanical strength.