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A kind of microwave dielectric ceramic material and preparation method thereof

A technology for microwave dielectric ceramics and raw materials, which is applied in the field of ceramic processing, can solve the problem of no process regulations, etc., and achieve the effects of low cost, simple process, and stable resonance frequency and temperature characteristics.

Inactive Publication Date: 2016-09-07
FOSHAN MINGQIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 201310720217.5 discloses a microwave dielectric ceramic, including the main crystal phase, the chemical expression of the main crystal phase is Mg 2-2x Ca x TiO 4-x , wherein, 0.05≤x≤0.2; but the invention does not specify the process; the present invention has developed a microwave dielectric ceramic with simple process, low cost and excellent performance after process optimization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A microwave dielectric ceramic, consisting of the following components in parts by weight:

[0031] BaCO 3 30 parts, TiO 2 20 parts, ZnO10 parts, Nb 2 o 5 8 parts, ZrO 2 8 parts, Nd 2 o 3 1.5 parts, CuO0.5 parts, H 3 BO 3 0.5 parts, MnCO 3 0.5 servings.

[0032] Its preparation method comprises the following steps:

[0033] (1) Ingredients: Weigh each component in proportion with a precision balance;

[0034] (2) One-time ball milling: According to the material: ball: water (alcohol) ratio is equal to 1:5:0.9, zirconium balls and prepared mixture;

[0035] and deionized water (alcohol) into the nylon ball mill tank in turn, and ball mill for several hours;

[0036] (3) Drying and sieving: place the ball-milled slurry in a pan and dry it in a drying oven at 100°C, and then pass it through a 60-mesh sieve;

[0037] (4) Pre-burning: put the dried and sieved material into an alumina crucible, and pre-fire at 1150°C for 3 hours;

[0038] (5) Secondary ing...

Embodiment 2

[0046] BaCO 3 40 parts, TiO 2 15 parts, ZnO 15 parts, Nb 2 o 5 9 parts, ZrO 2 9 parts, Nd 2 o 3 1.5 parts, CuO1 part, H 3 BO 3 1 part, MnCO 3 1 serving.

[0047] Its preparation method comprises the following steps:

[0048] (1) Ingredients: Weigh each component in proportion with a precision balance;

[0049] (2) One-time ball milling: According to the material: ball: water (alcohol) ratio is equal to 1:5:1, zirconium balls and prepared mixture;

[0050] and deionized water (alcohol) into the nylon ball mill tank in turn, and ball mill for several hours;

[0051] (3) Drying and sieving: place the ball-milled slurry in a pan and dry it in a drying oven at 100°C, and then pass it through a 60-mesh sieve;

[0052] (4) Pre-burning: put the dried and sieved material into an alumina crucible, and pre-fire at 1200°C for 3 hours;

[0053] (5) Secondary ingredients: add additives to the pre-burned base material according to the formula design;

[0054] (6) Secondary...

Embodiment 3

[0061] BaCO 3 25 parts, TiO 2 12 parts, ZnO14 parts, Nb 2 o 5 10 parts, ZrO 2 10 parts, Nd 2 o 3 5 parts, CuO2 parts, H 3 BO 3 2 parts, MnCO 3 0.5 servings.

[0062] Its preparation method comprises the following steps:

[0063] (1) Ingredients: Weigh each component in proportion with a precision balance;

[0064] (2) One-time ball milling: according to the material: ball: water (alcohol) ratio is equal to 1:5:0.8, zirconium balls and prepared mixture;

[0065] and deionized water (alcohol) into the nylon ball mill tank in turn, and ball mill for several hours;

[0066] (3) Drying and sieving: place the ball-milled slurry in a pan and dry it in a drying oven at 100°C, and then pass it through a 60-mesh sieve;

[0067] (4) Pre-burning: put the dried and sieved material into an alumina crucible, and pre-fire at 1100°C for 3 hours;

[0068] (5) Secondary ingredients: add additives to the pre-burned base material according to the formula design;

[0069] (6) Se...

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Abstract

The invention relates to a microwave dielectric ceramic material and a preparation method thereof, belonging to the technical field of ceramic processing, wherein the parts by weight of each component are 20-60 parts of BaCO3, 10-20 parts of TiO2, 10-20 parts of ZnO, and 1-10 parts of Nb2O5 1-10 parts of ZrO2, 0-5 parts of Nd2O3, 0.1-3 parts of CuO, 0.1-2 parts of H3BO3, 0.1-2 parts of MnCO3. The preparation process is batching → ball milling → drying, sieving → pre-calcination → Secondary batching → secondary ball milling → drying again, sieving → granulation → dry pressing → sintering → cooling → finished product; the microwave dielectric ceramic material has excellent high-frequency dielectric properties (high dielectric constant, low dielectric loss It has a series of circuit functions such as dielectric isolation, dielectric waveguide, and dielectric resonance in microwave circuits, and can be widely used in many fields such as microwave communication, data transmission, radar, electronic countermeasures, and satellite navigation.

Description

technical field [0001] The invention relates to a microwave dielectric ceramic material and a preparation method thereof, in particular to a microwave dielectric ceramic material and a preparation method thereof, belonging to the technical field of ceramic processing. Background technique [0002] In the 1980s, microwave dielectric ceramics were gradually developed as a new electronic functional ceramic material. The global research on microwave dielectric ceramic materials began to develop in 1980 and reached the first development peak in 1995; after that, the research on microwave dielectric ceramics became more and more popular. After rapid development, from 2004 to 2011, the research on microwave dielectric ceramic materials entered the first The second development peak, the number of research papers published at this time is more than twice that of the first peak period. The United States and Japan, two developed countries, not only pioneered the research of microwave ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/468C04B35/622
Inventor 黄朝阳
Owner FOSHAN MINGQIAN TECH
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