CN112142459A - Preparation method of microwave ceramic material with high dielectric constant - Google Patents

Preparation method of microwave ceramic material with high dielectric constant Download PDF

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CN112142459A
CN112142459A CN202010920063.4A CN202010920063A CN112142459A CN 112142459 A CN112142459 A CN 112142459A CN 202010920063 A CN202010920063 A CN 202010920063A CN 112142459 A CN112142459 A CN 112142459A
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dielectric constant
ball milling
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赵华
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Linyi Jincheng Electronics Co ltd
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Abstract

The invention discloses a preparation method of a microwave ceramic material with high dielectric constant, belonging to the technical field of preparation of microwave ceramic materials. The microwave ceramic material with high dielectric constant consists of a main component and an auxiliary agent, wherein the main component is BaSn4O9、Ba2Sn9O20The auxiliary agent is Y2O3、CaCO 3、Dy2O3、Any two or more of ZnO and CuO. Experiments prove that by adding the step of washing and drying in the preparation method of the microwave dielectric ceramic, the dielectric constant of the microwave dielectric ceramic material obtained by the invention is obviously improved compared with the dielectric constant of the traditional production process, the dielectric constant r is continuously adjustable between 60 and 70, and the requirement of the microwave dielectric ceramic dielectric constant series of the invention is metThe requirements of the conversion, the quality factor Q and the frequency temperature coefficient tau f are all in accordance with the requirements.

Description

Preparation method of microwave ceramic material with high dielectric constant
Technical Field
The invention relates to the field of dielectric ceramics, in particular to a preparation method of a microwave ceramic material with high dielectric constant.
Background
Microwave ceramics are the core material of microwave devices. In recent decades, microwave technology has been widely used, such as mobile communication, satellite communication, global positioning system (gps), bluetooth technology, medical equipment, etc., due to the rapid development of microwave technology equipment toward miniaturization and integration, especially toward large-output and low-price civil products; the development of microwave technology is not independent of the application of microwave devices, and microwave dielectric ceramics are generally applied to microwave devices such as microwave dielectric resonators, duplexers, microwave filters, phase shifters and the like due to the advantages of small size, high reliability, light weight and the like.
At present, the domestic microwave ceramic variety can not meet the requirement of microwave technology development, most high-quality microwave ceramic dielectric materials still depend on import, and the cost is higher. The key research and development directions of the microwave dielectric ceramic are that the dielectric constant is high, the quality factor is high, the frequency temperature coefficient is close to zero, and the sintering temperature is low.
The microwave dielectric ceramic powder is synthesized by a solid-phase reaction method, namely, a plurality of oxide powder materials are mixed and calcined, and the powder is obtained by mechanical grinding, so that the microwave dielectric ceramic powder has the advantages of simple equipment and process and easiness in industrial production. But the defects are that the material with higher purity is difficult to obtain due to the limitation of the production process, and the dielectric property of the material is influenced due to more impurities.
Disclosure of Invention
In view of the problems in the prior art, the invention aims to provide a preparation method of a microwave ceramic material with high dielectric constant.
In order to achieve the purpose, the technical scheme of the invention is as follows: a microwave ceramic material with high dielectric constant is composed of main component BaSn and assistant4O9、Ba2Sn9O20B, carrying out the following steps of; the auxiliary agent is Y2O3、CaCO 3、Dy2O3、Any two or more of ZnO and CuO.
Further, the two main components are BaSn according to weight percentage4O9And Ba2Sn9O2094-98% of the additive and 2-7% of the auxiliary agent.
The preparation method comprises the following steps:
main component BaSn4O9 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Proportioning according to a molar ratio of 1: 4;
ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing for 24-36H;
and (3) calcining: calcining the dried product for 3-5H in a box furnace or a tunnel furnace at 1050-1150 ℃ to synthesize BaSn4O9。
Washing with water: cleaning of BaSn with water4O9Drying the powder at 100-200 deg.C；
Main component Ba2Sn9O20 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Preparing materials according to a molar ratio of 2: 9;
ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing for 24-36H;
and (3) calcining: calcining the dried Ba in a box furnace or a tunnel furnace at 1050-1150 ℃ for 3-5H to synthesize Ba2Sn9O20；
Washing with water: washing Ba with water2Sn9O20And drying the powder at 100-200 ℃.
Preparation of an auxiliary agent: handle Y2O3、CaCO 3、Dy2O3、And (2) putting ZnO and CuO into a polyurethane ball milling tank, adding zirconia balls and deionized water, ball milling and mixing for 12H, drying, and calcining for 3-5H in a box furnace or a tunnel furnace at 850-1000 ℃ to obtain the assistant.
The synthesized BaSn4O9And Ba2Sn9O20And ball-milling the mixture and an auxiliary agent for 24-48 h according to the porcelain composition in the scheme, and drying at 100-120 ℃ to obtain the material.
Preferably, the two main components BaSn are calculated by weight percentage4O9And Ba2Sn9O20The proportion is 40-60% and 60-40% respectively.
Preferably, the auxiliary agent comprises, by weight, 0.5-1.2% of ZnO, 2-5% of CaCO 3, and Y2O30 to 1.5% of Dy2O30 to 1.5% of CuO, and 0 to 1.5% of CuO.
Preferably, the ball milling time of the main component is 36H.
Preferably, the calcination temperature of the main component is 1100 ℃ and the calcination time is 4H.
Preferably, the main component is washed with water and then dried at 150 ℃.
Preferably, the weight ratio of the raw materials, water and zirconia balls in the preparation of the main component is 1: 1.2-1.5: 4-6;
the invention has the beneficial effects that:
in the prior art, sintered BaSn4O9、Ba2Sn9O20The particle size distribution of (a) is often accompanied by a lot of fine particles of about a few nanometers, and in addition, some impurities generated during mechanical grinding, the presence of which causes the presence of excess charges in the medium, thereby increasing the electrical conduction consumption. In the invention, the sintered BaSn4O9、Ba2Sn9O20Washing with water, and drying the washed material at 100-200 ℃ to obtain the BaSn4O9、Ba2Sn9O20The impurity amount is small, the particle size distribution is more concentrated, and the dielectric constant is improved.
The retrieval shows that the microwave ceramic material after calcination is washed with water and dried, and no report is found at present, and the dielectric constant of the microwave dielectric ceramic material can be improved by washing the main component after calcination and then drying. Experiments prove that by adding the step of washing and drying in the preparation method of the microwave dielectric ceramic, the dielectric constant of the microwave dielectric material obtained by the invention is obviously improved compared with that of the traditional production process, the dielectric constant r is continuously adjustable between 60 and 70, the requirement of microwave ceramic dielectric constant serialization is met, and the quality factor Q and the frequency temperature coefficient tau f meet the requirements.
Detailed Description
Example 1: a method for preparing a microwave ceramic material with high dielectric constant comprises the following steps:
main component BaSn4O9 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Proportioning according to a molar ratio of 1: 4; ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing for 24H; and (3) calcining: calcining the dried product for 4H in a box furnace or a tunnel furnace at 1000 ℃ to synthesize BaSn4O9(ii) a Washing with water: cleaning with waterWashed BaSn4O9Powder and then dried at 150 ℃.
Main component Ba2Sn9O20 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Preparing materials according to a molar ratio of 2: 9; ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing the mixture for 36H; and (3) calcining: calcining 4H in a box furnace or a tunnel furnace at 1000 ℃ after drying to synthesize Ba2Sn9O20(ii) a Washing with water: washing Ba with water2Sn9O20Powder and then dried at 150 ℃.
Preparation of an auxiliary agent: handle Y2O3、CaCO 3、Dy2O3、And putting ZnO and CuO into a polyurethane ball milling tank, adding zirconia balls and deionized water, ball milling and mixing for 12H, drying, and calcining for 5H in a box furnace or a tunnel furnace at 850 ℃ to obtain the assistant.
Weighing the main component BaSn prepared by the method according to the weight percentage4O9And Ba2Sn9O20In which BaSn4O960% of the main component by weight, Ba2Sn9O20The weight of the main component is 40 percent; then adding 1 percent of ZnO and 3 percent of CaCO31% of Y2O31% Dy2O3And 1% of CuO, mixing uniformly, carrying out ball milling for 36h, and drying at 100 ℃ to obtain the material.
Comparative example 1: the preparation method is the same as that of example 1, except that the main component BaSn4O9、Ba2Sn9O20In the preparation process, the steps of washing and drying are omitted.
Example 2: a method for preparing a microwave ceramic material with high dielectric constant comprises the following steps:
main component BaSn4O9 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Proportioning according to a molar ratio of 1: 4; ball milling: placing in a polyurethane ball milling tank, addingAdding zirconia balls and deionized water, ball-milling and mixing for 36H; and (3) calcining: calcining the dried product for 3H at 1050 ℃ in a box furnace or a tunnel furnace to synthesize BaSn4O9(ii) a Washing with water: cleaning of BaSn with water4O9Powder and then dried at 100 ℃.
Main component Ba2Sn9O20 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Preparing materials according to a molar ratio of 2: 9; ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing for 24H; and (3) calcining: calcining 4H in a box furnace or a tunnel furnace at 1050 ℃ after drying to synthesize Ba2Sn9O20(ii) a Washing with water: washing Ba with water2Sn9O20Powder and then dried at 100 ℃.
Preparation of an auxiliary agent: handle Y2O3、CaCO 3、Dy2O3、And putting ZnO and CuO into a polyurethane ball milling tank, adding zirconia balls and deionized water, ball milling and mixing for 12H, drying, and calcining for 3H in a box furnace or a tunnel furnace at 1000 ℃ to obtain the assistant.
Weighing the main component BaSn prepared by the method according to the weight percentage4O9And Ba2Sn9O20In which BaSn4O940% by weight of the main component, Ba2Sn9O20Accounts for 60 percent of the weight of the main component; then adding 0.5 percent of ZnO and 5 percent of CaCO31.5% of Y2O30.5% Dy2O3And 1.2 percent of CuO, mixing uniformly, carrying out ball milling for 24 hours, and drying at 120 ℃ to obtain the material.
Comparative example 2: the preparation method is the same as that of example 2, except that the main component BaSn4O9、Ba2Sn9O20In the preparation process, the steps of washing and drying are omitted.
Example 3: a method for preparing a microwave ceramic material with high dielectric constant comprises the following steps:
main component BaSn4O9 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Proportioning according to a molar ratio of 1: 4; ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing the mixture for 36H; and (3) calcining: calcining 4H in a box furnace or a tunnel furnace at 1150 ℃ after drying to synthesize BaSn4O9(ii) a Washing with water: cleaning of BaSn with water4O9Powder, then dried at 200 ℃.
Main component Ba2Sn9O20 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Preparing materials according to a molar ratio of 2: 9; ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing for 24H; and (3) calcining: calcining 4H in a box furnace or a tunnel furnace at 1150 ℃ after drying to synthesize Ba2Sn9O20(ii) a Washing with water: washing Ba with water2Sn9O20Powder, then dried at 200 ℃.
Preparation of an auxiliary agent: handle Y2O3、CaCO 3、Dy2O3、And putting ZnO and CuO into a polyurethane ball milling tank, adding zirconia balls and deionized water, ball milling and mixing for 12H, drying, and calcining for 4H in a box furnace or a tunnel furnace at 900 ℃ to obtain the assistant.
Weighing the main component BaSn prepared by the method according to the weight percentage4O9And Ba2Sn9O20In which BaSn4O950% of the main component by weight, Ba2Sn9O20Accounting for 50 percent of the weight of the main component; then adding 1.2 percent of ZnO and 2 percent of CaCO30.2% of Y2O3And 1.2 percent of CuO, mixing uniformly, carrying out ball milling for 48 hours, and drying at 100 ℃ to obtain the material.
Comparative example 3: the preparation method is the same as that of example 3, except that the main component BaSn4O9、Ba2Sn9O20In the preparation process, the steps of washing and drying are omitted.
The results of the performance index tests performed on the products prepared according to the examples and the corresponding comparative examples are shown in table 1.
TABLE 1 comparison of dielectric Properties of examples and comparative examples
Figure DEST_PATH_IMAGE001
As can be seen from the data in Table 1, the product produced according to the technical scheme of the invention has better performance indexes than the comparative example.

Claims (7)

1. A preparation method of a microwave ceramic material with high dielectric constant is characterized by comprising the following steps:
main component BaSn4O9 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Proportioning according to a molar ratio of 1: 4;
ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing for 24-36H;
and (3) calcining: calcining the dried product for 3-5H in a box furnace or a tunnel furnace at 1050-1150 ℃ to synthesize BaSn4O9；
Washing with water: cleaning of BaSn with water4O9Drying the powder at 100-200 ℃;
main component Ba2Sn9O20 The preparation of (1):
preparing materials: mixing barium carbonate (BaCO)3) And tin dioxide (SnO)2) Preparing materials according to a molar ratio of 2: 9;
ball milling: putting the mixture into a polyurethane ball milling tank, adding zirconia balls and deionized water, and ball milling and mixing for 24-36H;
and (3) calcining: calcining the dried Ba in a box furnace or a tunnel furnace at 1050-1150 ℃ for 3-5H to synthesize Ba2Sn9O20；
Washing with water: washing Ba with water2Sn9O20Drying the powder at 100-200 ℃;
preparation of an auxiliary agent: handle Y2O3、CaCO 3、Dy2O3、Putting ZnO and CuO into a polyurethane ball milling tank, adding zirconia balls and deionized water, ball milling and mixing for 12H, drying, and calcining for 3-5H in a box furnace or a tunnel furnace at 850-1000 ℃ to obtain an auxiliary agent;
the synthesized BaSn4O9And Ba2Sn9O20And ball-milling the mixture and an auxiliary agent for 24-48 h according to the porcelain composition in the scheme, and drying at 100-120 ℃ to obtain the material.
2. The method for preparing a microwave ceramic material having a high dielectric constant as claimed in claim 1, wherein the two main components are BaSn in weight percentage4O9And Ba2Sn9O20The proportion is 40-60% and 60-40% respectively.
3. The method for preparing microwave ceramic material with high dielectric constant as claimed in claim 1, wherein the compounding ratio of the auxiliary agent is 0.5-1.2% by weight of ZnO, 2-5% by weight of CaCO 3, and Y2O30 to 1.5% of Dy2O30 to 1.5% of CuO, and 0 to 1.5% of CuO.
4. A method for preparing a microwave ceramic material with high dielectric constant as claimed in claim 1, characterized in that the ball milling time of the main component is 36H.
5. The method for preparing a microwave ceramic material having a high dielectric constant as claimed in claim 1, wherein the calcination temperature of the main component is 1100 ℃ and the calcination time is 4H.
6. The method for preparing a microwave ceramic material having a high dielectric constant as claimed in claim 1, wherein the main component is washed with water and dried at a temperature of 150 ℃.
7. The method for preparing microwave ceramic material with high dielectric constant as claimed in claim 1, wherein the weight ratio of the raw material, water and zirconia balls in the preparation of the main component is 1: 1.2-1.5: 4-6.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101583579A (en) * 2006-11-30 2009-11-18 韩国窑业技术院 Glass-free microwave dielectric ceramics and the manufacturing method thereof
CN106977178A (en) * 2017-03-05 2017-07-25 临沂金成电子有限公司 A kind of microwave ceramic dielectric material and preparation method
CN111410526A (en) * 2020-03-27 2020-07-14 广东风华高新科技股份有限公司 Perovskite-doped barium stannate material and preparation method and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101583579A (en) * 2006-11-30 2009-11-18 韩国窑业技术院 Glass-free microwave dielectric ceramics and the manufacturing method thereof
CN106977178A (en) * 2017-03-05 2017-07-25 临沂金成电子有限公司 A kind of microwave ceramic dielectric material and preparation method
CN111410526A (en) * 2020-03-27 2020-07-14 广东风华高新科技股份有限公司 Perovskite-doped barium stannate material and preparation method and application thereof

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