CN101759433A - Doped modified barium titanate-based high-pressure porcelain capacitor material - Google Patents
Doped modified barium titanate-based high-pressure porcelain capacitor material Download PDFInfo
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- CN101759433A CN101759433A CN200910264550A CN200910264550A CN101759433A CN 101759433 A CN101759433 A CN 101759433A CN 200910264550 A CN200910264550 A CN 200910264550A CN 200910264550 A CN200910264550 A CN 200910264550A CN 101759433 A CN101759433 A CN 101759433A
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- titanate
- capacitor material
- barium titanate
- barium
- based high
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Abstract
The invention provides a doped modified barium titanate-based high-pressure porcelain capacitor material which is prepared from barium titanate, bismuth titanate, strontium titanate, calcium titanate, zinc oxide, zirconium oxide and niobium oxide. The materials are mixed, and then polyvinyl alcohol is added for pressing and forming and then is sintered at approximate 1240 degrees to obtain a high-dielectricity low-loss porcelain capacitor material resisting high pressure. The capacitor material sintered by adopting a porcelain material preparation formula improves the compressive strength by 9.4kv/mm, the dielectric constant delta r to be 3469 and the dielectric loss tan delta to be 0.0004 under an alternating working current of 1MHz.
Description
Technical field
The present invention relates to the high voltage bearing high-permitivity ceramics capacitor material behind a kind of doping vario-property.
Background technology
The specific inductivity of the high-pressure porcelain capacitor material of widespread production use at present is less, can not satisfy electronic circuit and miniaturization of devices demand thereof; Dielectric loss is big, is unfavorable for the job stability and the energy utilization rate of device.
And the withstand voltage of the lead-free ceramic capacitance modulator material of general prescription is not high enough simultaneously.
Summary of the invention
The invention provides a kind of high voltage bearing high low-loss ceramic capacitor material that is situated between.
Technical scheme is as follows: a kind of barium titanate-based high-pressure porcelain capacitor material of doping vario-property is characterized in that being made up of barium titanate, bismuth titanates, strontium titanate, calcium titanate, zinc oxide, zirconium white and niobium oxides.Above-mentioned materials is mixed the back add polyvinyl alcohol compression moulding, obtain high voltage bearing high low-loss ceramic capacitance material that is situated between at 1240 ℃ of left and right sides sintering then.
Adopt this porcelain prescription agglomerating capacitor material, its compressive strength value is brought up to 9.4kv/mm, DIELECTRIC CONSTANT
r=3469, under the working alternating current of 1MHz, dielectric loss tan δ=0.0004.
Embodiment
During actual fabrication, respectively with barium carbonate BaCO
3, bismuth oxide Bi
2O
3, Strontium carbonate powder, lime carbonate and titanium dioxide TiO
2According to certain proportioning weighing, oven dry makes barium titanate BaTiO under 800 to 1200 degrees centigrade after ball milling mixes
3, bismuth titanates Bi
2O
33TiO
2, strontium titanate SrTiO
3And calcium titanate CaTiO
3
According to mole proportioning 66～70% barium titanates, 2～4% bismuth titanates, 18～20% strontium titanate and 9～10% calcium titanates make the matrix porcelain, the mass percent of mixing is 0.2～0.4% zinc oxide ZnO, 0.5～2% zirconium white ZrO then
2With 1～4% niobium oxides Nb
2O
5Mix by ball milling after the prescription weighing, drying, the polyvinyl alcohol that adds 8wt% carries out granulation, 1240 degrees centigrade of following sintering get final product the unleaded high-voltage capacitance modulator material of this porcelain prescription.
Claims (3)
1. the barium titanate-based high-pressure porcelain capacitor material of a doping vario-property is characterized in that being made up of barium titanate, bismuth titanates, strontium titanate, calcium titanate, zinc oxide, zirconium white and niobium oxides.Above-mentioned materials is mixed the back add polyvinyl alcohol compression moulding, obtain high voltage bearing high low-loss ceramic capacitance material that is situated between at 1240 ℃ of left and right sides sintering then.
2. the barium titanate-based high-pressure porcelain capacitor material of doping vario-property according to claim 1 is characterized in that barium carbonate BaCO
3, bismuth oxide Bi
2O
3, Strontium carbonate powder, lime carbonate and titanium dioxide TiO
2According to certain proportioning weighing, after the ball milling oven dry, under 800 to 1200 degrees centigrade, make barium titanate BaTiO
3, bismuth titanates Bi
2O
33TiO
2, strontium titanate SrTiO
3With calcium titanate CaTiO
3
3. the barium titanate-based high-pressure porcelain capacitor material of doping vario-property according to claim 1, the titanate that it is characterized in that making, according to mole proportioning 65～70% barium titanates, 0～5% bismuth titanates, 12～20% strontium titanate and 4～10% calcium titanates make the matrix porcelain, the mass percent of mixing is 0～1% zinc oxide ZnO, 0～4% zirconium white ZrO then
2With 0～6% niobium oxides Nb
2O
5By ball milling after the prescription weighing, the polyvinyl alcohol that dry back adds 7～12wt% carries out granulation, at 1200～1250 degrees centigrade of following sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264550A CN101759433A (en) | 2009-12-28 | 2009-12-28 | Doped modified barium titanate-based high-pressure porcelain capacitor material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264550A CN101759433A (en) | 2009-12-28 | 2009-12-28 | Doped modified barium titanate-based high-pressure porcelain capacitor material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101759433A true CN101759433A (en) | 2010-06-30 |
Family
ID=42490838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910264550A Pending CN101759433A (en) | 2009-12-28 | 2009-12-28 | Doped modified barium titanate-based high-pressure porcelain capacitor material |
Country Status (1)
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| CN (1) | CN101759433A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101775A (en) * | 2010-12-08 | 2011-06-22 | 汕头高新区松田实业有限公司 | Low-loss high-voltage ceramic capacitor dielectric |
| CN102115323A (en) * | 2010-12-24 | 2011-07-06 | 费金华 | Doped modified barium titanate-based ceramic capacitor material |
| CN102167583A (en) * | 2010-12-24 | 2011-08-31 | 费金华 | Ceramic capacitor material for zinc oxide lightning arrester voltage sharing |
| CN103242038A (en) * | 2013-05-31 | 2013-08-14 | 常州佳冠电子有限公司 | Ceramic capacitor medium and preparation method thereof |
| CN104987061A (en) * | 2015-06-11 | 2015-10-21 | 铜陵迈维电子科技有限公司 | Constant current resonant type LED driving power source |
| CN106631005A (en) * | 2017-01-10 | 2017-05-10 | 北京元六鸿远电子科技股份有限公司 | Lead-free high-voltage capacitor dielectric ceramic sintered at medium temperature and preparation method thereof |
| CN108074737A (en) * | 2016-11-17 | 2018-05-25 | 昆山万盛电子有限公司 | A kind of patch safety electric capacity chip material and preparation method |
| CN115959904A (en) * | 2022-12-30 | 2023-04-14 | 北京七星飞行电子有限公司 | Dielectric material for preparing small-loss ultrahigh-voltage alternating-current ceramic dielectric capacitor and preparation method thereof |
-
2009
- 2009-12-28 CN CN200910264550A patent/CN101759433A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101775A (en) * | 2010-12-08 | 2011-06-22 | 汕头高新区松田实业有限公司 | Low-loss high-voltage ceramic capacitor dielectric |
| CN102115323A (en) * | 2010-12-24 | 2011-07-06 | 费金华 | Doped modified barium titanate-based ceramic capacitor material |
| CN102167583A (en) * | 2010-12-24 | 2011-08-31 | 费金华 | Ceramic capacitor material for zinc oxide lightning arrester voltage sharing |
| CN103242038A (en) * | 2013-05-31 | 2013-08-14 | 常州佳冠电子有限公司 | Ceramic capacitor medium and preparation method thereof |
| CN104987061A (en) * | 2015-06-11 | 2015-10-21 | 铜陵迈维电子科技有限公司 | Constant current resonant type LED driving power source |
| CN108074737A (en) * | 2016-11-17 | 2018-05-25 | 昆山万盛电子有限公司 | A kind of patch safety electric capacity chip material and preparation method |
| CN106631005A (en) * | 2017-01-10 | 2017-05-10 | 北京元六鸿远电子科技股份有限公司 | Lead-free high-voltage capacitor dielectric ceramic sintered at medium temperature and preparation method thereof |
| CN106631005B (en) * | 2017-01-10 | 2020-01-14 | 北京元六鸿远电子科技股份有限公司 | Medium-temperature sintered lead-free high-voltage capacitor dielectric ceramic material and preparation method thereof |
| CN115959904A (en) * | 2022-12-30 | 2023-04-14 | 北京七星飞行电子有限公司 | Dielectric material for preparing small-loss ultrahigh-voltage alternating-current ceramic dielectric capacitor and preparation method thereof |
| CN115959904B (en) * | 2022-12-30 | 2023-10-13 | 北京七星飞行电子有限公司 | Dielectric material for preparing small-loss ultrahigh-voltage alternating-current ceramic capacitor and preparation method thereof |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100630 |