CN109020542A - The preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics - Google Patents

The preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics Download PDF

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CN109020542A
CN109020542A CN201810989364.5A CN201810989364A CN109020542A CN 109020542 A CN109020542 A CN 109020542A CN 201810989364 A CN201810989364 A CN 201810989364A CN 109020542 A CN109020542 A CN 109020542A
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medium
microwave
dielectric constant
quality factor
high quality
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朱田中
倪玉荣
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ZHANGJIAGANG BONDED AREA CANQIN TECHNOLOGY Co Ltd
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ZHANGJIAGANG BONDED AREA CANQIN TECHNOLOGY Co Ltd
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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Abstract

This application discloses a kind of preparation methods of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics, stocked up by following molar ratio: 0.3~0.4 strontium carbonate, 0.05~0.15 aluminum oxide, 0.28~0.36 lanthanum sesquioxide, 0.15~0.25 titanium dioxide prepare microwave-medium ceramics.The microwave-medium ceramics dielectric constant 40.0 ± 1.0 that the present invention obtains, and quality factor >=100000GHz.

Description

The preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics
Technical field
This application involves the preparation method of microwave-medium ceramics, especially a kind of medium dielectric constant microwave medium ultra high quality factor microwave The preparation method of media ceramic.
Background technique
The microwave-medium ceramics of existing production can not meet medium dielectric constant microwave medium and two conditions of ultrahigh Q-value simultaneously, can not Meets the needs of existing production.
Summary of the invention
The present invention is for overcome the deficiencies in the prior art, to provide a kind of medium dielectric constant microwave medium ultra high quality factor microwave-medium The preparation method of ceramics.
To achieve the above object, the invention provides the following technical scheme:
The embodiment of the present application discloses the preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics, including such as Lower step,
S1 stocks up according to following molar ratio: 0.3~0.4 strontium carbonate, 0.05~0.15 aluminum oxide, 0.28~0.36 3 Aoxidize two lanthanums, 0.15~0.25 titanium dioxide；
Raw material in step S1 is mixed to form the first microwave material by S2, and deionized water is added in first microwave material With zirconia balls carry out ball milling, first microwave material, deionized water, zirconia balls mass ratio be 1: 1.2: 2.5, It is dried after ball milling, then obtains the first powder by steel wire mesh screen；
S3 is by first powder calcination；
Calcined first powder is put into polyesteramine bucket by S4, and deionized water and zirconia balls are added, and polyethylene is added Alcohol solution is granulated after dispersing agent and release agent ball milling is added for 24 hours as binder；
S5 is pressed into granulation powder the sequin of radius 13.85mm, thickness 6.2mm；
S6 the sequin suppressed 1500~1600 DEG C at a temperature of sintering 4~8h obtain product.
Preferably, in the preparation method of above-mentioned medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics, the step In rapid S2, drying temperature is 150 ± 5 DEG C, and the steel wire mesh screen is 200 mesh.
Preferably, in the preparation method of above-mentioned medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics, the step In rapid S3, calcination temperature is 1350~1400 DEG C, calcination time 5h.
Preferably, in the preparation method of above-mentioned medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics, the step In rapid S4, calcined first powder, deionized water, zirconia balls mass ratio be 1: 1.0: 2.5.
Preferably, in the preparation method of above-mentioned medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics, the step In rapid S5, the compact density of the sequin is 3.30 ± 0.10g/cm3。
The beneficial effects of the invention are as follows obtained microwave-medium ceramics dielectric constant 40.0 ± 1.0, and quality factor >= 100000GHz。
Specific embodiment
It will be apparent from the preferred embodiment of the present invention below.
Early-stage preparations raw material: strontium carbonate, aluminum oxide, lanthanum sesquioxide, titanium dioxide purity be 99.99% with On, nanoscale.
Embodiment 1
S1 stocks up according to following molar ratio: 0.35 strontium carbonate, 0.08 aluminum oxide, 0.32 lanthanum sesquioxide, 0.16 2 Titanium oxide；
Raw material in step S1 is mixed to form the first microwave material by S2, and deionized water and two is added in the first microwave material Zirconia ball carry out ball milling, the first microwave material, deionized water, zirconia balls mass ratio be 1: 1.2: 2.5, ball milling terminates After dry, drying temperature is 150 DEG C, then obtains the first powder by 200 mesh steel wire mesh screens；
S3 is by the first powder calcination, and calcination temperature is 1380 DEG C, calcination time 5h；
Calcined first powder is put into polyesteramine bucket by S4, is added deionized water and zirconia balls, and calcined the One powder, deionized water, zirconia balls mass ratio be 1: 1.0: 2.5, be added polyvinyl alcohol water solution as binder, add After entering dispersing agent and release agent ball milling for 24 hours, it is granulated；
Granulation powder is pressed into radius 13.85mm, thickness 6.2mm, compact density 3.33g/cm by S53Sequin；
S6 the sequin suppressed 1550 DEG C at a temperature of sintering 7h obtain product.
Embodiment 2
S1 stocks up according to following molar ratio: 0.38 strontium carbonate, 0.12 aluminum oxide, 0.29 lanthanum sesquioxide, 0.20 2 Titanium oxide；
Raw material in step S1 is mixed to form the first microwave material by S2, and deionized water and two is added in the first microwave material Zirconia ball carry out ball milling, the first microwave material, deionized water, zirconia balls mass ratio be 1: 1.2: 2.5, ball milling terminates After dry, drying temperature is 155 DEG C, then obtains the first powder by 200 mesh steel wire mesh screens；
S3 is by the first powder calcination, and calcination temperature is 1400 DEG C, calcination time 5h；
Calcined first powder is put into polyesteramine bucket by S4, is added deionized water and zirconia balls, and calcined the One powder, deionized water, zirconia balls mass ratio be 1: 1.0: 2.5, be added polyvinyl alcohol water solution as binder, add After entering dispersing agent and release agent ball milling for 24 hours, it is granulated；
Granulation powder is pressed into radius 13.85mm, thickness 6.2mm, compact density 3.38g/cm by S53Sequin；
S6 the sequin suppressed 1600 DEG C at a temperature of sintering 8h obtain product.
Embodiment 3
S1 stocks up according to following molar ratio: 0.32 strontium carbonate, 0.06 aluminum oxide, 0.35 lanthanum sesquioxide, 0.16 2 Titanium oxide；
Raw material in step S1 is mixed to form the first microwave material by S2, and deionized water and two is added in the first microwave material Zirconia ball carry out ball milling, the first microwave material, deionized water, zirconia balls mass ratio be 1: 1.2: 2.5, ball milling terminates After dry, drying temperature is 146 DEG C, then obtains the first powder by 200 mesh steel wire mesh screens；
S3 is by the first powder calcination, and calcination temperature is 1360 DEG C, calcination time 5h；
Calcined first powder is put into polyesteramine bucket by S4, is added deionized water and zirconia balls, and calcined the One powder, deionized water, zirconia balls mass ratio be 1: 1.0: 2.5, be added polyvinyl alcohol water solution as binder, add After entering dispersing agent and release agent ball milling for 24 hours, it is granulated；
Granulation powder is pressed into radius 13.85mm, thickness 6.2mm, compact density 3.22g/cm by S53Sequin；
S6 the sequin suppressed 1520 DEG C at a temperature of sintering 5h obtain product.
Embodiment 1-3 is tested for the property, instrument model E5071C, test cavity is 30 × t28mm's of Φ Silver coated aluminum chamber, all data are as follows:
This embodiment is just an exemplary description of this patent and does not limit its protection scope, and those skilled in the art are also Local change can be carried out to it, as long as it does not exceed the essence of this patent, all be considered as the equivalent replacement to this patent, all Within the protection scope of this patent.

Claims (5)

1. a kind of preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics, which is characterized in that including walking as follows Suddenly,
S1 stocks up according to following molar ratio: 0.3~0.4 strontium carbonate, 0.05~0.15 aluminum oxide, 0.28~0.36 3 oxidations Two lanthanums, 0.15~0.25 titanium dioxide；
Raw material in step S1 is mixed to form the first microwave material by S2, and deionized water and two is added in first microwave material Zirconia ball carry out ball milling, first microwave material, deionized water, zirconia balls mass ratio be 1: 1.2: 2.5, ball milling After dry, then obtain the first powder by steel wire mesh screen；
S3 is by first powder calcination；
Calcined first powder is put into polyesteramine bucket by S4, and deionized water and zirconia balls are added, and polyvinyl alcohol water is added Solution is granulated after dispersing agent and release agent ball milling is added for 24 hours as binder；
S5 is pressed into granulation powder the sequin of radius 13.85mm, thickness 6.2mm；
S6 the sequin suppressed 1500~1600 DEG C at a temperature of sintering 4~8h obtain product.
2. the preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics according to claim 1, feature It is, in the step S2, drying temperature is 150 ± 5 DEG C, and the steel wire mesh screen is 200 mesh.
3. the preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics according to claim 1, feature It is, in the step S3, calcination temperature is 1350~1400 DEG C, calcination time 5h.
4. the preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics according to claim 1, feature Be, in the step S4, calcined first powder, deionized water, zirconia balls mass ratio be 1: 1.0: 2.5.
5. the preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics according to claim 1, feature It is, in the step S5, the compact density of the sequin is 3.30 ± 0.10g/cm3。
CN201810989364.5A 2018-08-28 2018-08-28 The preparation method of medium dielectric constant microwave medium ultra high quality factor microwave-medium ceramics Pending CN109020542A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111517758A (en) * 2019-02-03 2020-08-11 苏州艾福电子通讯股份有限公司 Microwave dielectric ceramic powder and preparation method and application thereof
CN113860868A (en) * 2021-10-28 2021-12-31 江苏贝孚德通讯科技股份有限公司 High-performance solid solution microwave dielectric ceramic material and preparation method thereof
CN114031390A (en) * 2021-12-14 2022-02-11 广东国华新材料科技股份有限公司 Microwave dielectric material and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103130499A (en) * 2011-11-30 2013-06-05 深圳市大富科技股份有限公司 Preparation method of microwave dielectric ceramics materials

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
CN103130499A (en) * 2011-11-30 2013-06-05 深圳市大富科技股份有限公司 Preparation method of microwave dielectric ceramics materials

Non-Patent Citations (1)

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Title
尹邦跃: "《陶瓷核燃料工艺》", 28 February 2015, 哈尔滨工程大学出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111517758A (en) * 2019-02-03 2020-08-11 苏州艾福电子通讯股份有限公司 Microwave dielectric ceramic powder and preparation method and application thereof
CN113860868A (en) * 2021-10-28 2021-12-31 江苏贝孚德通讯科技股份有限公司 High-performance solid solution microwave dielectric ceramic material and preparation method thereof
CN114031390A (en) * 2021-12-14 2022-02-11 广东国华新材料科技股份有限公司 Microwave dielectric material and preparation method thereof

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