Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a calcium-coated ferrite magnetic core material, which comprises main materials and additives, wherein the main materials comprise the following raw materials by molar ratio: 63.5-66.8mol of Fe2O3, 14.2-20.4mol of manganese oxide, 14.5-17.5mol of zinc oxide, 0.1-0.2mol of talcum powder, 1.0-1.3mol of stannic oxide, 0.01-0.02mol of calcium-coated carbonyl iron powder and 1-2.3mol of iron powder; and the additives comprise 300-400ppm of copper oxide, 60-100ppm of bismuth oxide and 140-200ppm of lithium nitride. The calcium-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.
The invention discloses a calcium-coated ferrite magnetic core material, which comprises main materials and additives, wherein the main materials comprise the following raw materials by molar ratio: 63.5-66.8mol of Fe2O3, 14.2-20.4mol of manganese oxide, 14.5-17.5mol of zinc oxide, 0.1-0.2mol of talcum powder, 1.0-1.3mol of stannic oxide, 0.01-0.02mol of calcium-coated carbonyl iron powder and 1-2.3mol of iron powder; and the additives comprise 300-400ppm of copper oxide, 60-100ppm of bismuth oxide and 140-200ppm of lithium nitride. The calcium-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.
Ferrite material, preparation method and magnetic core
| Europäisches Patentamt | 2023