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BaNdSmPr)Ti5O14 microwave ceramic dielectric material and preparation thereof

A technology of microwave ceramics and dielectric materials, applied in ceramics, inorganic insulators, etc., can solve the problems that hinder the development of microwave dielectric materials and their components industry, components cannot be used normally, and the Qf value of components is low, so as to shorten the time of pre-burning process , good molding process, high Qf effect

Inactive Publication Date: 2009-01-14
GUANGDONG FENGHUA ADVANCED TECH HLDG
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AI Technical Summary

Problems solved by technology

At present, most of the high-performance microwave dielectric materials used in China are imported from abroad, and the materials are expensive
Microwave components made of low-performance microwave dielectric materials, in a low-power environment, the component heats up normally; in a high-power environment, the component heats up too much, causing the component to fail to work normally
This is because the loss is too high and the Qf value of the component is low.
In addition, if the microwave ceramic dielectric material contains lead Pb, cadmium Cd, mercury Hg, chromium Cr +6 Harmful elements that are not conducive to environmental protection, hinder the industry development of microwave dielectric materials and their components

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  • BaNdSmPr)Ti5O14 microwave ceramic dielectric material and preparation thereof
  • BaNdSmPr)Ti5O14 microwave ceramic dielectric material and preparation thereof

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Embodiment

[0012] A (BaNdSmPr)Ti 5 o 14 The preparation method of the microwave ceramic dielectric material is to put the microwave ceramic dielectric material of No. 1 to No. 10 formulas in Table 1 into a microwave sintering kiln or a high-temperature tunnel long furnace to heat up from room temperature to the temperature in the high-temperature zone, then keep it warm in the high-temperature zone, and finally cool down To room temperature, the heating process is 3-5 hours, the holding process is 2.5-5 hours, the room temperature is 20±20°C, and the high temperature zone temperature is 1050±50°C. The obtained material is uniform, the particle size distribution is uniform, the dispersion is high, the molding process is good, the high quality factor, and the environmental protection microwave dielectric material, and its performance test parameters are shown in Table 2 Materials 1-10.

[0013] Table 1: (BaNdSmPr)Ti 5 o 14 Composition of microwave ceramic dielectric materials

[0014] ...

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Abstract

The invention discloses a (BaNdSmPr)Ti5O14 microwave ceramic medium material as well as a preparation method thereof, the material is composed of a main crystal phase, a modified additive and a sintering fluxing agent, the structural formula of the main crystal phase is BaNd(2X)(Sm(0-1 / 3)Pr(0-1 / 3))2(1-x)Ti5O14 (0.6<=X<=0.8), and the modified additive is one or more of Bi2O3, MnO, CaO and SnO2; and the sintering fluxing agent is one or more of B2O3, SiO2 and ZnO. The microwave medium ceramic material obtained by adopting the fast pre-sintering solid phase method process has the advantages of uniform material, even particle size distribution, high dispersion, good forming process and high quality of factors, and meets the requirements of environmental protection.

Description

technical field [0001] The invention relates to a microwave ceramic dielectric material and a preparation method thereof, in particular to a microwave ceramic dielectric material applied to microwave components and a preparation method thereof. Background technique [0002] Microwave dielectric materials are new functional electronic materials that have developed rapidly in the past 30 years. They are key materials for microwave components such as microwave resonators, filters, microwave antennas, and duplexers. They are widely used in mobile communications, satellite communications, and global positioning systems ( GPS), wireless access, wireless local area network (WLA) and Bluetooth technology and other modern microwave communication technologies have very important applications. Miniaturization, high frequency, integration, low cost, environmental protection and low radiation are the future development directions of microwave dielectric materials. At present, most of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/462C04B35/622H01B3/12
Inventor 张火光宋永生魏汉光王孝国郭精华陈兆勇
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG
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