CN103288447B - A kind of media ceramic - Google Patents
A kind of media ceramic Download PDFInfo
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- CN103288447B CN103288447B CN201210051655.2A CN201210051655A CN103288447B CN 103288447 B CN103288447 B CN 103288447B CN 201210051655 A CN201210051655 A CN 201210051655A CN 103288447 B CN103288447 B CN 103288447B
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Abstract
The present invention provides a kind of media ceramic, and in terms of molfraction, its raw material includes 0.5～1 part of BaO, 4～6 parts of TiO2With 0.1～0.4 part of SrO.The dielectric constant of the media ceramic can reach 40 or so, while Q-value is up to 30000；And the media ceramic has the advantages that fine and close, uniform, satisfactory mechanical property, it is adapted to promote, use in filter field.
Description
【Technical field】
The present invention relates to ceramic material field, more particularly to a kind of media ceramic.
【Background technology】
Media ceramic is used in the components and parts such as dielectric filter, capacitor, is usually required that with higher dielectric constant
With relatively low dielectric loss angle tangent value.With the new development of antenna microwave device, the dielectric constant and loss to media ceramic
There is higher requirement.Conventional media ceramic includes Barium metatitanate. and some oxides, but can seldom realize that dielectric constant is more than
30th, product of the Q-value more than 10000.
【The content of the invention】
For drawbacks described above, the technical scheme adopted by present invention solution above-mentioned technical problem is：Construct a kind of medium pottery
Porcelain, in terms of molfraction, its raw material includes 0.5～1 part of BaO, 4～6 parts of TiO2With 0.1～0.4 part of SrO.
In media ceramic of the present invention, the raw material includes 0.6～0.8 part of BaO by molfraction, 4.7～5.5
Part TiO2With 0.18～0.32 part of SrO.
In media ceramic of the present invention, the raw material includes 0.8 part of BaO, 5 parts of TiO by molfraction2With 0.2
Part SrO.
In media ceramic of the present invention, the Ceramic Material also includes Al2O3, and the raw material as described in molfraction
Including 0.5～1 part of BaO, 4～6 parts of TiO2, 0.1～0.4 part of SrO and 0.1～0.4 part of Al2O3。
In media ceramic of the present invention, the Ceramic Material includes 0.6～0.8 part of BaO by molfraction, 4.7
～5.5 parts of TiO2, 0.18～0.32 part of SrO and 0.18～0.30 part of Al2O3。
In media ceramic of the present invention, the Ceramic Material includes 0.8 part of BaO, 5 parts of TiO by molfraction2,
0.2 part of SrO and 0.25 part of Al2O3。
Beneficial effects of the present invention are：The media ceramic dielectric constant of the present invention can reach 40 or so, and Q-value is more than
30000；And compact structure, uniform, satisfactory mechanical property, can extensively applied microwave components and parts such as filter resonance it is sub
On.
【Specific embodiment】
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention
Limit the present invention.
The present invention relates to a kind of media ceramic, its raw material includes 0.5～1 part of BaO, 4～6 parts of TiO by molfraction2With
0.1～0.4 part of SrO.Therefore the main component of the present invention is BaO and TiO2, because the composition can improve Jie of media ceramic
Electric constant.A little SrO can control heat stability and reduce temperature drift, in addition, if mechanical property is required, can be by molar part
Number adds 0.1～0.4 part of Al on year-on-year basis2O3.In sintering, the granularity of each composition is all 0.5～1 micron.
Using above-mentioned formula media ceramic made by substrate, dielectric constant can reach 40 or so, and Q-value can be more than
30000；And the media ceramic prepared is fine and close, uniform, satisfactory mechanical property, can be widely used in dielectric filter etc. micro-
On ripple components and parts.
Embodiment one：
By the BaO of 0.8mol, the TiO of 5mol2Hot isostatic pressing technique is utilized in temperature 1250～1300 with the SrO of 0.2mol
DEG C, above-mentioned material is sintered 3 hours under the conditions of 180～200MPa of pressure, the media ceramic needed for preparing；After testing, obtained
It is 30148 that the dielectric constant of the media ceramic for obtaining is 40, Q-value；Can also be prepared using spark plasma sintering technology and be given an account of
Matter ceramics.
Embodiment two：
By the BaO of 0.5mol, the TiO of 4mol2Hot isostatic pressing technique is utilized in temperature 1300～1350 with the SrO of 0.1mol
DEG C, above-mentioned material is sintered 4 hours under the conditions of 200～220MPa of pressure, the media ceramic needed for preparing；After testing, obtained
It is 31021 that the dielectric constant of the media ceramic for obtaining is 41, Q-value；Can also be prepared using spark plasma sintering technology and be given an account of
Matter ceramics.
Embodiment three：
By the BaO of 1mol, the TiO of 6mol2Hot isostatic pressing technique is utilized in temperature 1300～1350 with the SrO of 0.4mol
DEG C, above-mentioned material is sintered 4 hours under the conditions of 200～220MPa of pressure, the media ceramic needed for preparing；After testing, obtained
It is 30024 that the dielectric constant of the media ceramic for obtaining is 41, Q-value；Can also be prepared using spark plasma sintering technology and be given an account of
Matter ceramics.
Example IV：
By the BaO of 0.8mol, the TiO of 5mol2, the Al of the SrO and 0.25mol of 0.2mol2O3Existed using hot isostatic pressing technique
Above-mentioned material is sintered 4 hours under the conditions of 1320～1350 DEG C of temperature, 210～230MPa of pressure, the medium pottery needed for preparing
Porcelain；After testing, it is 30284 that the dielectric constant of the media ceramic for being obtained is 40, Q-value；Spark plasma sintering can also be adopted
Technology prepares above-mentioned media ceramic.
Embodiment five：
By the BaO of 0.6mol, the TiO of 5.6mol2, the Al of the SrO and 0.32mol of 0.18mol2O3Using high temperature insostatic pressing (HIP) skill
Above-mentioned material is sintered 4 hours under the conditions of 1320～1350 DEG C of temperature, 210～230MPa of pressure by art, Jie needed for preparing
Matter ceramics；After testing, it is 31006 that the dielectric constant of the media ceramic for being obtained is 40, Q-value；Spark plasma can also be adopted
Sintering technology prepares above-mentioned media ceramic.
Embodiment six：
By the BaO of 0.9mol, the TiO of 4.8mol2, the Al of the SrO and 0.2mol of 0.30mol2O3Using hot isostatic pressing technique
Above-mentioned material is sintered 4 hours under the conditions of 1320～1350 DEG C of temperature, 210～230MPa of pressure, the medium needed for preparing
Ceramics；After testing, it is 30165 that the dielectric constant of the media ceramic for being obtained is 42, Q-value；Can also be burnt using spark plasma
Knot technology prepares above-mentioned media ceramic.
In the above-described embodiments, exemplary description has only been carried out to the present invention, but those skilled in the art is reading this
Various modifications can be carried out to the present invention without departing from the spirit and scope of the present invention after patent application.
Claims (5)
1. a kind of media ceramic, it is characterised in that：Its raw material includes 0.5～1 part of BaO, 4～6 parts of TiO by molfraction2, 0.1～
0.4 part of SrO and 0.1～0.4 part of Al2O3, and sintering is formed under the pressure of 180-220Mpa so that the Q of the media ceramic
Value is more than 30000.
2. media ceramic according to claim 1, it is characterised in that the raw material includes 0.6～0.8 part by molfraction
BaO, 4.7～5.5 parts of TiO2With 0.18～0.32 part of SrO.
3. media ceramic according to claim 2, it is characterised in that the raw material includes 0.8 part of BaO by molfraction, 5
Part TiO2With 0.2 part of SrO.
4. media ceramic according to claim 1, it is characterised in that the Ceramic Material includes 0.6 by molfraction～
0.8 part of BaO, 4.7～5.5 parts of TiO2, 0.18～0.32 part of SrO and 0.18～0.30 part of Al2O3。
5. media ceramic according to claim 4, it is characterised in that the Ceramic Material includes 0.8 part by molfraction
BaO, 5 parts of TiO2, 0.2 part of SrO and 0.25 part of Al2O3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210051655.2A CN103288447B (en) | 2012-03-01 | 2012-03-01 | A kind of media ceramic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210051655.2A CN103288447B (en) | 2012-03-01 | 2012-03-01 | A kind of media ceramic |
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| CN103288447A CN103288447A (en) | 2013-09-11 |
| CN103288447B true CN103288447B (en) | 2017-03-29 |
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| CN201210051655.2A Active CN103288447B (en) | 2012-03-01 | 2012-03-01 | A kind of media ceramic |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613200A (en) * | 2009-07-21 | 2009-12-30 | 西安交通大学 | A kind of low-temperature sintered microwave dielectric ceramic material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001089234A (en) * | 1999-09-27 | 2001-04-03 | Murata Mfg Co Ltd | Dielectric ceramic composition and multilayer ceramic parts |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613200A (en) * | 2009-07-21 | 2009-12-30 | 西安交通大学 | A kind of low-temperature sintered microwave dielectric ceramic material and preparation method thereof |
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Effective date of registration: 20210423 Address after: 518057 2 / F, software building, No.9, Gaoxin Middle Road, Nanshan District, Shenzhen, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 518034. A, 18B, CIC international business center, 1061 Mei Xiang Road, Shenzhen, Guangdong, Futian District Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |