Cerium-based ferrite core material for transformer

Abstract

The invention discloses a cerium-based ferrite core material for a transformer. The core material comprises main materials and additives, wherein the main materials comprise the following components according to molar ratios: 61-66.6 mol of Fe2O3 (ferric oxide), 14.3-27 mol of manganese oxide, 11.4-14 mol of zinc oxide, 0.1-0.2 mol of cobalt, 0.1-0.2 mol of hafnium oxide, 0.01-0.02 mol sodium molybdate, and 0.01-0.02 mol of rare earth composite magnetic conducting power bodies; the additives comprise the following components according to the weight ratios of the components accounting for the ferrite core material: 70-100 ppm of copper powder, and 50-80 ppm of neodymia. The rare earth composite magnetic conducting powder bodies are added to the ferrite core material disclosed by the invention, so that the magnetic energy product is high, the magnetic property is stable, a preparation method is simple, and finished products have the characteristics of high grain boundary resistivity, low porosity and large and uniform crystal grains.

Description

Technical field [0001] The present invention mainly relates to the field of oxide magnetic material manufacturing, in particular to a cerium-based ferrite core material for transformers. Background technique [0002] With the development of communication technology and digitalization of electronic products, new requirements have been put forward for soft ferrites and components. High-performance and high-permeability magnetic cores are widely used in various basic materials for telecommunications and information, such as common mode filters, Saturated inductance, current transformers, leakage protectors, insulating transformers, signal and pulse transformers and other fields have been widely used. Now the electronic communication industry needs ferrite cores with low core loss and high permeability to meet the current miniaturization and high efficiency requirements of electrical equipment. The existing cores are difficult to meet the above requirements; [0003] The permanent mag...

AI Technical Summary

Problems solved by technology

Now the electronic communication industry needs ferrite cores with low core loss and high magnetic permeability to meet the miniaturization and high efficiency requirements of electrical equipment. The existing magnetic cores are difficult to meet the above requirements;