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Microwave ferrite material with gradient saturation magnetization intensities, ferrite substrate prepared from microwave ferrite material and preparation method of ferrite substrate

A ferrite material and magnetization technology, applied in the field of microwave technology and magnetic materials, can solve problems such as inability to combine together, crystal structure, and large differences in sintering shrinkage at solid-phase reaction temperature, so as to expand device bandwidth and achieve Miniaturization and integration, the effect of reducing the size of the device

Active Publication Date: 2020-09-04
中国电子科技集团公司第九研究所
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  • Description
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  • Application Information

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Problems solved by technology

The crystal structure, solid-state reaction temperature, and sintering shrinkage of the two materials are quite different, and traditional methods cannot combine them

Method used

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  • Microwave ferrite material with gradient saturation magnetization intensities, ferrite substrate prepared from microwave ferrite material and preparation method of ferrite substrate
  • Microwave ferrite material with gradient saturation magnetization intensities, ferrite substrate prepared from microwave ferrite material and preparation method of ferrite substrate
  • Microwave ferrite material with gradient saturation magnetization intensities, ferrite substrate prepared from microwave ferrite material and preparation method of ferrite substrate

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Effect test

Embodiment 1

[0036] A preparation method of gradient saturation magnetization microwave ferrite substrate, such as figure 1 shown, including the following steps:

[0037] (1) Formula design, according to the compositional chemical formula Bi h Gd k Y 3-h-k-(a+c+2d+f) Ca a+c+2d+ f Sn a In b Zr c V d Al e Ge f Fe 5-a-b-c-d-e-f-δ1 O 12 Carry out the formula design of material A1, wherein a=0.25, b=0, c=0.15, d=0.5, e=0.28, f=0.12, h=0, k=0.1, δ1=0.02; according to the chemical formula Bi h Gd k Y 3-h-k-(a+c+2d+f) Ca a+c+2d+f Sn a In b Zr c V d Al e Ge f Fe 5-a-b-c-d-e-f-δ1 O 12 Carry out the formula design of material B2, where a=0.15, b=0.2, c=0, d=0, e=0, f=0, h=0.2, k=0, δ1=0.02;

[0038] (2) weighing materials, according to the formula design results of material A1 and material B2 in step (1), calculate and weigh various required raw materials respectively, and the raw materials are Y 2 O 3 , Fe 2 O 3 , Bi 2 O 3 , Gd 2 O 3 , CaCO 3 , V 2 O 5 , ZrO 2 , S...

Embodiment 2

[0050] A preparation method of a gradient saturation magnetization microwave ferrite substrate, comprising the following steps:

[0051] (1) Formula design, according to the compositional chemical formula Ni 1-x+y-z Zn x Dy n Sn y Co z Mn m Fe 2-2y-m-n-δ2 O 4 Carry out the formula design of material A1, where x=0.2, y=0.1, z=0.01, m=0.08, n=0.02, δ2=0.1; according to the compositional chemical formula Ni 1-x+y-z Zn x Dy n Sn y Co z Mn m Fe 2-2y-m-n-δ2 O 4 Carry out the formula design of material B2, where x=0.45, y=0, z=0.02, m=0.04, n=0.05, δ2=0.1;

[0052] (2) weighing material, according to the formula design results of material A1 and material B2 in step (1), calculate and weigh various required raw materials respectively, and the raw material is Fe 2 O 3 , SnO 2 , NiO, ZnO, Dy 2 O 3 , Co 2 O 3 , MnCO 3 ;

[0053] (3) One-time wet ball milling of raw materials, mix various raw materials of material A1 weighed in step (2) and put them into ball mill j...

Embodiment 3

[0064] A preparation method of a gradient saturation magnetization microwave ferrite substrate, comprising the following steps:

[0065](1) Formula design, according to the compositional chemical formula Bi h Gd k Y 3-h-k-(a+c+2d+f) Ca a+c+2d+ f Sn a In b Zr c V d Al e Ge f Fe 5-a-b-c-d-e-f-δ1 O 12 Carry out the formula design of material A1, where a=0.2, b=0.2, c=0, d=0.4, e=0.25, f=0, h=0, k=0.07, δ1=0.08;

[0066] According to the compositional formula Ni 1-x+y-z Zn x Dy n Sn y Co z Mn m Fe 2-2y-m-n-δ2 O 4 Carry out the formula design of material B2, where x=0.1, y=0.12, z=0, m=0.1, n=0.05, δ2=0.08; according to the compositional chemical formula Ni 1-x+y- z Zn x Sn y Co z Mn m Fe 2-2y-m-n-δ2 O 4 Carry out the formula design of material C3, where x=0.2, y=0.02, z=0.05, m=0.05, n=0.2, δ2=0.05;

[0067] (2) Weighing, according to the formula design results of material A1, material B2, and material C3 in step (1), calculate and weigh the required va...

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Abstract

The invention discloses a microwave ferrite material with gradient saturation magnetization intensities. The chemical composition of the raw materials of the material is Bi<h>Gd<k>Y<3-h-k-(a+c+2d+f)>Ca<a+c+2d+f>SnInZr<c>V<d>Al<e>Ge<f>Fe<5-a-b-c-d-e-f-delta1>O<12> and Ni<1-x+y-z>Zn<x>D<y>Sn<y>Co<z>Mn<m>Fe<2-2y-m-n-delta2>O<4>, wherein a is no less than 0 and no more than 0.5, b is no less than 0 and no more than 0.5, c is no less than 0 and no more than 0.5, d is no less than 0 and no more than 1.0, e is no less than 0 and no more than 1.0, f is no less than 0 and no more than 0.5, h is no less than 0 and no more than 1.5, k is no less than 0 and no more than 0.7, x is no less than 0 and no more than 0.5, y is no less than 0 and no more than 0.15, z is no less than 0 and no more than0.06, m is no less than 0 and no more than 0.1, delta is an iron deficiency amount, delta1 is larger than or equal to 0.02 and smaller than or equal to 0.3, and delta 2 is larger than or equal to 0.02and smaller than or equal to 0.2. The raw materials form at least two different saturation magnetization intensity areas on a substrate; the saturation magnetization intensity gradients on the microwave ferrite substrate with gradient saturation magnetization intensities can be randomly combined within the range of 47 kA / m to 414 kA / m; different saturation magnetization intensity areas can be inany shape; the problems of miniaturization and integration of microwave devices and the technical problems of miniaturization, high isolation and low insertion loss of frequency doubling and triple frequency broadband devices are solved through combination of saturation magnetization intensities of different gradients; and the preparation method is reasonable in process and suitable for application and popularization.

Description

technical field [0001] The invention relates to the field of microwave technology and magnetic materials, in particular to a gradient saturation magnetization microwave ferrite substrate and a preparation method thereof. Background technique [0002] From the overall development trend of modern microwave communication equipment system, electronic countermeasure system, remote control and telemetry system integration, modularization, small and multi-functional. Especially in view of the development of 5G communication, the bandwidth and volume requirements of microwave ferrite devices are getting higher and higher. The design idea of ​​the traditional broadband microwave ferrite device is based on a single performance ferrite material, and the bandwidth is broadened through the circuit. The ferrite material with single performance has a single saturation magnetization, and the optimal operating point can only be in a specific area, which is difficult to meet the technical re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/622H01F1/34H01F41/02
CPCC04B35/2641C04B35/2675C04B35/2683C04B35/622H01F1/344H01F41/0266C04B2235/3225C04B2235/3272C04B2235/3298C04B2235/3224C04B2235/3208C04B2235/3239C04B2235/3244C04B2235/3293C04B2235/32C04B2235/3218C04B2235/3229C04B2235/602C04B2235/656C04B2235/6567C04B2235/75C04B2235/95
Inventor 杨菲袁红兰任仕晶冯涛廖杨
Owner 中国电子科技集团公司第九研究所
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