Lanthanum-lead-strontium ferrite

A technology of ferrite and iron oxide, applied in the field of lanthanum-lead-strontium ferrite, which can solve the problems that ferrite cannot meet

Inactive Publication Date: 2014-03-05
NINGBO STAR MATERIALS HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A single ferrite cannot meet the needs of various environments

Method used

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  • Lanthanum-lead-strontium ferrite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A lanthanum-lead-strontium ferrite, characterized in that: the mass ratio of its components is: lanthanum oxide 5%, lead oxide 7%, strontium oxide 4%, boron oxide 1%, nickel oxide 3%, oxide Zinc 9%, silicon oxide 2%, calcium oxide 0.7%, the balance is iron oxide.

Embodiment 2

[0014] A lanthanum-lead-strontium ferrite, characterized in that: the mass ratio of its components is: lanthanum oxide 10%, lead oxide 3%, strontium oxide 2%, boron oxide 2%, nickel oxide 4%, oxide Zinc 7%, silicon oxide 3%, calcium oxide 0.2%, the balance is iron oxide.

Embodiment 3

[0016] A lanthanum-lead-strontium ferrite, characterized in that: the mass ratio of its components is: lanthanum oxide 7%, lead oxide 5%, strontium oxide 3%, boron oxide 1.5%, nickel oxide 2%, oxide 4% zinc, 3% silicon oxide, 0.5% calcium oxide, and the balance is iron oxide.

[0017] The electromagnetic performance of the gadolinium barium ferrite described in embodiment 1-3 is as shown in table 1:

[0018]

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Abstract

The invention discloses a lanthanum-lead-strontium ferrite which is characterized in that the lanthanum-lead-strontium ferrite comprises, by mass, 5-10% of lanthanum oxide, 3-7% of lead oxide, 2-4% of strontium oxide, 1-2% of boric oxide, 2-6% of nickel oxide, 4-10% of zinc oxide, 2-3% of silicon oxide, 0.2-0.7% of calcium oxide, and the balance ferric oxide. The lanthanum-lead-strontium ferrite has wonderful saturation magnetization.

Description

technical field [0001] The invention belongs to the field of magnetic materials, in particular to a lanthanum-lead-strontium ferrite. Background technique [0002] Ferrite is a ferromagnetic metal oxide, which is sintered from iron oxide and other ingredients. In terms of electrical properties, the resistivity of ferrite is much larger than that of metal and alloy magnetic materials, and it also has higher dielectric properties. The magnetic properties of ferrite are also shown to have higher magnetic permeability at high frequencies. Therefore, ferrite has become a widely used non-metallic magnetic material in the field of high frequency and weak current. Due to the low magnetic energy stored in the unit volume of ferrite, the saturation magnetization is also low, usually only 1 / 3 to 1 / 5 of pure iron, which limits its use in low-frequency strong electricity and large fields that require higher magnetic energy density. applications in the power field. [0003] Ferrite na...

Claims

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Application Information

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IPC IPC(8): H01F1/34
Inventor 苏广春关井和陈益明
Owner NINGBO STAR MATERIALS HI TECH
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