CN103360049A - Dielectric ceramic - Google Patents
Dielectric ceramic Download PDFInfo
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- CN103360049A CN103360049A CN2012100931254A CN201210093125A CN103360049A CN 103360049 A CN103360049 A CN 103360049A CN 2012100931254 A CN2012100931254 A CN 2012100931254A CN 201210093125 A CN201210093125 A CN 201210093125A CN 103360049 A CN103360049 A CN 103360049A
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- media ceramic
- catio
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- dielectric ceramic
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Abstract
The invention provides a dielectric ceramic which is prepared from CaTiO3 and B2O3, wherein the B2O3 accounts for 8-12 wt% of the CaTiO3. The dielectric constant of the dielectric ceramic can reach 150 or so, and the Q value is up to 2000; and the dielectric ceramic is compact and uniform, has the advantages of favorable mechanical properties and the like, and is suitable for popularization and application in the field of filters.
Description
[technical field]
The present invention relates to the stupalith field, relate in particular to a kind of media ceramic.
[background technology]
Media ceramic is to be used in the components and parts such as dielectric filter, electrical condenser, usually requires to have higher specific inductivity and lower tangent of the dielectric loss angle value.Along with the new development of antenna microwave device, specific inductivity and the loss of media ceramic there has been higher requirement.Conventional media ceramic comprises barium titanate and some oxide compounds, but seldom can realize specific inductivity greater than 30, the Q value is greater than 10000 product.
[summary of the invention]
For defects, the present invention solves the problems of the technologies described above the technical scheme that adopts and is: construct a kind of media ceramic, its raw material comprises CaTiO
3And B
2O
3, B wherein
2O
3Quality be CaTiO
3Quality 8～12%.
In media ceramic of the present invention, described B
2O
3Quality be CaTiO
3Quality 9～11%.
In media ceramic of the present invention, described B
2O
3Quality be CaTiO
3Quality 10%.
In media ceramic of the present invention, described media ceramic is to be prepared from described prepared using heat and other static pressuring processes.
Beneficial effect of the present invention is: media ceramic specific inductivity of the present invention can reach about 150, and the Q value is greater than 2000; And compact structure, evenly, satisfactory mechanical property, can the widespread use microwave device for example on filter resonance.
[embodiment]
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention relates to a kind of media ceramic, its raw material comprises CaTiO
3And B
2O
3, B wherein
2O
3Quality be CaTiO
3Quality 8～12%.Therefore main component of the present invention is CaTiO
3, because this composition can improve the specific inductivity of media ceramic.A little B
2O
3Can control thermostability reduces temperature and floats.When sintering, the granularity of each composition all is 0.5～1 micron.
The media ceramic that utilizes above-mentioned prescription to make, specific inductivity can reach about 150, and the Q value can be greater than 2000; And the media ceramic of preparing is fine and close, evenly, satisfactory mechanical property, can be widely used on the microwave device such as dielectric filter.
Embodiment one:
With CaTiO
3, B
2O
3Be preparation in 100: 8 according to mass ratio, utilize hot isostatic pressing technique under 1250～1300 ℃ of temperature, pressure 200～210MPa condition with above-mentioned materials sintering 2 hours, prepare required media ceramic; The specific inductivity of the media ceramic that obtains after testing, is 155, the Q value is 2145; Also can adopt the spark plasma sintering technology to prepare above-mentioned media ceramic.
Embodiment two:
With CaTiO
3, B
2O
3Be preparation in 100: 10 according to mass ratio, utilize hot isostatic pressing technique under 1280～1310 ℃ of temperature, pressure 180～200MPa condition with above-mentioned materials sintering 2.5 hours, prepare required media ceramic; The specific inductivity of the media ceramic that obtains after testing, is 153, the Q value is 2210; Also can adopt the spark plasma sintering technology to prepare above-mentioned media ceramic.
Embodiment three:
With CaTiO
3, B
2O
3Be preparation in 100: 11 according to mass ratio, utilize hot isostatic pressing technique under 1300～1310 ℃ of temperature, pressure 200～210MPa condition with above-mentioned materials sintering 2 hours, prepare required media ceramic; The specific inductivity of the media ceramic that obtains after testing, is 151, the Q value is 2198; Also can adopt the spark plasma sintering technology to prepare above-mentioned media ceramic.
Embodiment four:
With CaTiO
3, B
2O
3Be preparation in 100: 12 according to mass ratio, utilize hot isostatic pressing technique under 1300～1310 ℃ of temperature, pressure 210～220MPa condition with above-mentioned materials sintering 3 hours, prepare required media ceramic; The specific inductivity of the media ceramic that obtains after testing, is 151, the Q value is 2201; Also can adopt the spark plasma sintering technology to prepare above-mentioned media ceramic.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art are in the situation that can carry out various modifications to the present invention not breaking away from the spirit and scope of the present invention after reading present patent application.
Claims (4)
1. media ceramic, it is characterized in that: its raw material comprises CaTiO
3And B
2O
3, B wherein
2O
3Quality be CaTiO
3Quality 8～12%.
2. media ceramic according to claim 1 is characterized in that, described B
2O
3Quality be CaTiO
3Quality 9～11%.
3. media ceramic according to claim 2 is characterized in that, described B
2O
3Quality be CaTiO
3Quality 10%.
4. media ceramic according to claim 1 is characterized in that, described media ceramic is to be prepared from described prepared using heat and other static pressuring processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093125.4A CN103360049B (en) | 2012-03-31 | 2012-03-31 | A kind of media ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093125.4A CN103360049B (en) | 2012-03-31 | 2012-03-31 | A kind of media ceramic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103360049A true CN103360049A (en) | 2013-10-23 |
| CN103360049B CN103360049B (en) | 2016-08-24 |
Family
ID=49362416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210093125.4A Active CN103360049B (en) | 2012-03-31 | 2012-03-31 | A kind of media ceramic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103360049B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3787219A (en) * | 1972-09-22 | 1974-01-22 | Du Pont | CaTiO{11 -CRYSTALLIZABLE GLASS DIELECTRIC COMPOSITIONS |
| CN102365249A (en) * | 2009-03-26 | 2012-02-29 | 日立金属株式会社 | Dielectric ceramic composition, multilayer dielectric substrate, electronic component, and method for producing dielectric ceramic composition |
-
2012
- 2012-03-31 CN CN201210093125.4A patent/CN103360049B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3787219A (en) * | 1972-09-22 | 1974-01-22 | Du Pont | CaTiO{11 -CRYSTALLIZABLE GLASS DIELECTRIC COMPOSITIONS |
| CN102365249A (en) * | 2009-03-26 | 2012-02-29 | 日立金属株式会社 | Dielectric ceramic composition, multilayer dielectric substrate, electronic component, and method for producing dielectric ceramic composition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103360049B (en) | 2016-08-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210427 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. |
|
| TR01 | Transfer of patent right |