Mn-doped ZrTi2O8/ZnNb2O8 multiphase microwave dielectric ceramic and preparation method thereof

A microwave dielectric ceramic and solid-phase method technology are applied in the field of Mn-doped ZrTi2O8/ZnNb2O8 composite microwave dielectric ceramics and their preparation, which can solve the problems of high dielectric constant, inability to meet the miniaturization of devices, large quality and volume, etc. Achieve the effect of improving sintering characteristics and good microwave dielectric properties

Inactive Publication Date: 2018-04-03
徐平芳
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the relatively large mass and volume of existing microwave dielectric resonators, the development of microwave integrated circuits is greatly limited.
The existing microwave dielectric ceramic materials cannot meet the requirements of device miniaturization because of their high dielectric constant and low quality factor Q value.

Method used

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Embodiment Construction

[0024] The present invention is further illustrated by the following examples: According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the specific material ratios, process conditions and results described in the examples are only used to illustrate the present invention, and should not and will not limit the present invention described in the claims.

[0025] This embodiment discloses a kind of Mn-doped ZrTi 2 o 8 / ZnNb 2 o 8 Composite microwave dielectric ceramics, in which ZrTi 2 o 8 The mass proportion of Mn is 65wt%, the mass proportion of Mn is 1.2wt%, and the balance is ZnNb 2 o 8 .

[0026] Mn-doped ZrTi 2 o 8 / ZnNb 2 o 8 The preparation method of complex-phase microwave dielectric ceramics includes:

[0027] 1. Synthesis of ZrTi by solid phase method 2 o 8 / ZnNb 2 o 8 Binder:

[0028] (1), with ZrO 2 、TiO 2 , Nb 2 o 5 , ZnO as raw material;

[0029] (2) Ball...

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Abstract

The application discloses a Mn-doped ZrTi2O8 / ZnNb2O8 composite microwave dielectric ceramic and a preparation method thereof, wherein the mass proportion of ZrTi2O8 is 65wt%, the mass proportion of Mn is 1.2wt%, and the balance is ZnNb2O8. The preparation method of Mn-doped ZrTi2O8 / ZnNb2O8 composite microwave dielectric ceramics includes: 1. Synthesizing ZrTi2O8 / ZnNb2O8 base material by solid phase method; 2. Adding MnCO3 to ZrTi2O8 / ZnNb2O8 base material; 3. Adding MnCO3 base material Put it into a polyurethane ball mill tank for ball milling; 4. Dry and sieve; 5. Granulate; 6. Dry press molding; Keep warm at 1250°C for 5 hours; 8. Cool to room temperature. The invention effectively improves the sintering characteristics of the dielectric ceramics through Mn doping modification, can be sintered densely in the air at 1250 DEG C, and has good microwave dielectric properties.

Description

technical field [0001] This application relates to a kind of Mn-doped ZrTi 2 o 8 / ZnNb 2 o 8 Composite microwave dielectric ceramic and its preparation method. Background technique [0002] Microwave dielectric ceramics is a new trend in international research on dielectric materials in recent years, which is mainly to meet the development needs of microwave mobile communications. In the late 20th century, the combination of information processing technology and electronic information digitization technology pushed the communication system to an unprecedented new peak. The ultimate goal of communication is to achieve full-time information transmission and exchange, so that the high mobility of communication machines has become an inevitable trend of development. At present, mobile communication has been promoted to the whole people, in order to expand the capacity, it is necessary to increase the carrier frequency. For this reason, the development of a series of electr...

Claims

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Application Information

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IPC IPC(8): C04B35/462C04B35/622C04B35/626C04B35/634
CPCC04B35/462C04B35/622C04B35/62655C04B35/63416C04B2235/3246C04B2235/3251C04B2235/3262C04B2235/3284C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/96
Inventor 徐平芳
Owner 徐平芳
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