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Low-magnetic loss ferrite magnetic core material
The invention discloses a low-magnetic loss ferrite magnetic core material, which mainly comprises main materials and additives, wherein the main materials comprise the following raw materials by molar ratio: 65.4-67mol of Fe2O3, 15.1-21mol of manganese oxide, 11.7-14.7mol of zinc oxide, 0.1-0.2mol of tungsten powder, 3-4.5mol of manganese oxide and 0.01-0.02mol of tin-coated carbonyl iron powder; and the additives comprise 500-600ppm of molybdenum oxide, 200-500ppm of zirconium oxide, 10-40ppm of diamond powder and 200-300ppm of vanadium pentoxide. The tin-coated carbonyl iron powder added to the ferrite magnetic core material disclosed by the invention has high magnetic flux rate at a high frequency and an ultrahigh frequency; the comprehensive properties of the product are further improved; and the magnetic core material disclosed by the invention has the characteristics of high magnetic energy product, stable magnetism and high mechanical property and the like.
Low-magnetic loss ferrite magnetic core material
The invention discloses a low-magnetic loss ferrite magnetic core material, which mainly comprises main materials and additives, wherein the main materials comprise the following raw materials by molar ratio: 65.4-67mol of Fe2O3, 15.1-21mol of manganese oxide, 11.7-14.7mol of zinc oxide, 0.1-0.2mol of tungsten powder, 3-4.5mol of manganese oxide and 0.01-0.02mol of tin-coated carbonyl iron powder; and the additives comprise 500-600ppm of molybdenum oxide, 200-500ppm of zirconium oxide, 10-40ppm of diamond powder and 200-300ppm of vanadium pentoxide. The tin-coated carbonyl iron powder added to the ferrite magnetic core material disclosed by the invention has high magnetic flux rate at a high frequency and an ultrahigh frequency; the comprehensive properties of the product are further improved; and the magnetic core material disclosed by the invention has the characteristics of high magnetic energy product, stable magnetism and high mechanical property and the like.
Low-magnetic loss ferrite magnetic core material
ZHU YONGNING (author)
2015-04-29
Patent
Electronic Resource
English
Preparation method of high frequency low loss soft magnetic ferrite core material
| European Patent Office | 2016