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Yig ferrite material and preparation method

A technology of ferrite material and raw material, applied in the field of YIG ferrite material and its preparation, can solve the problems of expensive raw material, high loss, large line width, etc., and achieve the effect of reducing microwave dielectric loss and loss

Active Publication Date: 2021-02-12
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a new material with small line width, low loss and high raw material price in view of the shortcomings of existing YIG ferrite materials, such as large line width, high loss, or small line width but expensive raw materials. Cheap and easy-to-obtain microwave ferrite material and its preparation method

Method used

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  • Yig ferrite material and preparation method
  • Yig ferrite material and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0070] Embodiment 1~5: a kind of preparation method of YIG ferrite material comprises the following steps:

[0071] 1. Formula

[0072] Embodiment 1~5 (x represents molecular formula Y 3-x Ca x Fe 5-x sn x o 12 Medium Sn ion substitution) main formula and nano BaTiO 3 See the table below for the amount of doping:

[0073]

[0074] 2. One ball milling

[0075] Mix the powder prepared according to the proportion in the ball mill evenly for 6 hours;

[0076] 3. Pre-burning

[0077] Dry the ball abrasive obtained in step 2, and pre-fire it in a furnace at 1100°C for 2 hours;

[0078] 4. Doping

[0079] The powder obtained in step 3 is doped by the following weight percentage: 0.20wt% Bi 2 o 3 , 0.05wt% Nb 2 o 5 , 0.10wt% Ta 2 o 5 , 0.50wt% nano BaTiO 3 ;

[0080] 5. Secondary ball milling

[0081] Mix superhard ball milling media with different diameters in the ball mill according to a certain ratio, mix the powder obtained in step 4 according to a certain ball...

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Abstract

YIG ferrite material and preparation method belong to the technical field of ferrite material preparation. The YIG ferrite material of the present invention includes a main material and a dopant, and is characterized in that the main material includes 47.8-61.1mol% Fe 2 o 3 , 26.1~36.4mol% Y 2 o 3 , 1.2~13.0mol%SnO 2 , the balance being CaCO 3 ; By weight percentage, calculated as oxide, dopant includes: 0.05-0.40wt% Bi 2 o 3 , 0.05~0.10wt% Nb 2 o 5 , 0.05~0.20wt% Ta 2 o 5 , 0.50~0.60wt% nanometer BaTiO 3 . The invention has the characteristics of small line width, low loss and cheap and easy-to-obtain raw materials.

Description

technical field [0001] The technology belongs to the technical field of ferrite material preparation, and in particular relates to a YIG ferrite material with small line width and low loss and a preparation method thereof. Background technique [0002] Ferrite microwave devices (such as electric tuning filters, limiters, phase shifters, circulators, etc.) have the advantages of high carrying power and low loss. It plays an important role in military and civilian applications such as mobile communications, artificial satellites, and television. With the development of ferrite microwave devices in the direction of high frequency and light weight, more new requirements are put forward for the ferrite used in them, such as saturation magnetization meeting specific requirements, microwave dielectric loss tanδ ε Small, small ferromagnetic resonance line width ΔH, high temperature stability, etc., to obtain better communication quality and lower production costs. Therefore, micro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/34C04B35/40C04B35/622C04B35/626C04B35/64
CPCC04B35/2641C04B35/622C04B35/6261C04B35/62695C04B35/64C04B2235/3208C04B2235/3225C04B2235/3231C04B2235/3236C04B2235/3251C04B2235/3293C04B2235/3298C04B2235/652
Inventor 孙科郭启广余忠蒋晓娜兰中文郭荣迪
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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