CN111063543A - High-mechanical-strength capacitor and preparation method thereof - Google Patents
High-mechanical-strength capacitor and preparation method thereof Download PDFInfo
- Publication number
- CN111063543A CN111063543A CN201911217878.XA CN201911217878A CN111063543A CN 111063543 A CN111063543 A CN 111063543A CN 201911217878 A CN201911217878 A CN 201911217878A CN 111063543 A CN111063543 A CN 111063543A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- mechanical strength
- ceramic
- high mechanical
- producing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
- H01G4/1209—Ceramic dielectrics characterised by the ceramic dielectric material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
- H01G4/1209—Ceramic dielectrics characterised by the ceramic dielectric material
- H01G4/1218—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates
- H01G4/1227—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates based on alkaline earth titanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
The invention belongs to the technical field of capacitors, in particular to a high-mechanical-strength capacitor and a preparation method thereof, wherein large, medium and small zirconium balls are selected to accelerate the grinding speed of the capacitor, the particle size is controlled to be less than or equal to 0.4 mu m, and then the particle sizes are concentrated in a similar way by an airflow type dust collector to remove the excessively large or excessively small particle sizes; preparing the powder into a ceramic dielectric layer, and testing mechanical strength including bending resistance and bending resistance; the design can still maintain a high capacitance value on the premise of not influencing the electrical characteristics, and a capacitor with high mechanical strength is manufactured; the high-strength capacitor is manufactured, and the high-damage-voltage resistance performance is realized; the invention greatly improves the mechanical strength coefficient of the capacitor and realizes a product with high capacity value and high damage voltage resistance.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a high-mechanical-strength capacitor and a preparation method thereof.
Background
The invention develops a capacitor with high strength, wherein the powder material uses barium titanate as a main powder material, and the solid-phase synthesis method is not easy to cause if the particle size of the powder is concentrated, so that the produced wafer is obviously uneven in crystal grain generation under SEM shooting due to the influence of the process technology of the solid-phase synthesis method. Therefore, if the traditional process technology is broken through to obtain powder with uniform particle size, the mechanical strength can be improved only by specially adjusting or adding the airflow type dust collector to improve the wrapping and scraping sintering density.
The selection requirement of the powder in the capacitor is very important, most manufacturers only pay attention to grinding the particle size of the powder by using a ball mill and a bead mill in the past, no special requirement is made on D10 and D90, the mechanical strength of the manufactured capacitor is not outstanding, the main reason is that the ceramic powder is not uniformly refined, the grain size is very uneven after sintering, the density cannot be improved, and the destruction voltage is general, so that most ceramic powder mainly focuses on the control of D50, and the D10 and D90 are not looked at, and the improvement of the mechanical strength and the destruction voltage of most capacitors is limited.
Disclosure of Invention
The invention aims to overcome the defects that the concentration of the particle size of powder is difficult to cause and the crystal grains of a wafer are obviously uneven under SEM shooting in the prior art, and provides a high-mechanical-strength capacitor and a preparation method thereof, which can greatly improve the bending strength and the bending coefficient.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high mechanical strength capacitor comprises a ceramic dielectric layer, an inner electrode and an end head; the two sides of the ceramic medium layer are symmetrically provided with end heads; the inner electrodes are alternately arranged in the ceramic medium layer.
A preparation method of a high-mechanical-strength capacitor comprises the following steps:
the first step is as follows: the ceramic powder is ground at an accelerated grinding speed by adding large, medium and small zirconium balls according to a matching ratio and a water-material ratio, wherein the large, medium and small ratios are 0.5:1:1.5, and the water-material ratio is 1:1, grinding at a grinding speed of 500rpm/1min, and controlling the particle size to be less than or equal to 0.4 mu m;
the second step is that: iron impurities generated by metal debris during grinding of the material are filtered out through iron removal and sieving actions;
the third step: after being screened, the pulp enters a centrifugal spray dryer for drying, and after being atomized by the dryer, the pulp is dehydrated to leave dry powder;
the fourth step: the particle size distribution of D10, D50 and D90 is concentrated by an airflow dust collector, and the performance of D10 is less than twice that of D50;
the fifth step: matching with the manufacturing process of the capacitor, the thickness of the green body is 5.0 mu m +/-0.5 mu m;
and a sixth step: stacking the green bodies in a condition of being thin and capable of being stacked into a plurality of layers, and applying a high-strength surface pressure of more than 15000 Psi to enable the green bodies to reach a firm state to be manufactured into the ceramic dielectric layers;
the seventh step: the ceramic dielectric layer, the inner electrode and the end are used for manufacturing the high-mechanical-strength capacitor by using the MLCC manufacturing process.
Preferably, after the ceramic particles are refined, the BET specific surface area is increased, the sintering temperature is relatively reduced, and the degree of crystal compactness is greatly improved.
Preferably, the mechanical strength is improved by 7-10% of the growth of the ceramic powder, and the breakdown voltage is also improved by 3-5%.
Preferably, the particle size analyzer identifies that the D90 of the ceramic powder is 0.8 μm, the D50 is 0.4 μm +/-0.05 μm, and the D10 is 0.2 μm.
Preferably, the dielectric constant K of the ceramic powder after changing the particle size of the powder is 3300-3500, the loss coefficient Df is ≦ 0.6%, and the material mainly containing Ba and Ti has high dielectric constant and low loss.
Preferably, the ceramic powder can be used to produce a thin band of 5.0 μm. + -. 0.5 μm and sintering conditions of 1300 ℃.
Preferably, the ceramic powder body is used for manufacturing a capacitor, the capacitance value Cp reaches 50-150nF, and the loss coefficient Df is 0.7%.
Preferably, the ceramic powder forms a capacitor with a breakdown voltage of up to 70VDC per unit.
Preferably, the bending strength of the capacitor made of the ceramic powder is improved by 7-10% compared with that of the capacitor made by the prior art, and the bending coefficient is improved by 5-7% compared with that of the capacitor made by the prior art.
The invention has the beneficial effects that: 1. the invention can greatly improve the mechanical strength of the capacitor, and the destruction voltage of the electrical characteristics has high-level performance due to the structural enhancement, thereby realizing a mode of improving the mechanical strength of the capacitor;
2. the ceramic powder is mainly made of Ba and Ti, K is 3300-3500, loss coefficient Df is ≦ 0.6%, and the material has high dielectric constant and low loss, so the material is selected to improve the mechanical strength and has expanded space for the subsequent application range;
3. the invention adopts the method of changing the particle size and screening the powder with concentrated particle size, the front-stage grinding mainly controls the particle size D50 to be 0.40 mu m +/-0.05 mu m, the particle size of the powder is reduced, the subsequent processing also controls the distribution of D10 and D90 as the main shaft of the invention, an airflow dust collector is adopted to remove the over-large or over-small powder, the particle size with similar size is screened, the density is improved after the ceramic chip sintering verification after the two kinds of machine processing, in addition, the powder with concentrated particle size can effectively fill the porosity generated by sintering, the sintering density is greatly improved, the porosity is shot and calculated by an electron microscope, the original coarse particle size is improved from about 90-92% to 96-98%, thus the best compactness is achieved;
4. the improved powder is adopted to manufacture a 5.0 mu m +/-0.5 mu m embryonic band, the subsequent manufacture of the capacitor with the same size 1206 is carried out, the mechanical strength of the capacitor manufactured by the two powders is compared, the mechanical strength of the improved powder is improved by 7-10 percent, the breakdown voltage is also improved by 3-5 percent, and the capacitance value of the capacitor material with high capacity and high mechanical strength is about 50-150 nF.
Drawings
FIG. 1 is a view showing a surface structure of a high mechanical strength capacitor according to the present invention.
FIG. 2 is a sectional view of the high mechanical strength capacitor according to the present invention;
FIG. 3 is a graph showing the particle size of the improved ceramic powder of the high mechanical strength capacitor of the present invention;
FIG. 4 is a graph showing the particle size of the ceramic powder of the high mechanical strength capacitor of the present invention before improvement.
Description of reference numerals: 1 ceramic dielectric layer, 2 internal electrodes and 3 ends.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Comparative example 1
The high mechanical strength capacitor comprises a ceramic dielectric layer 1, an inner electrode 2 and a terminal 3; the two sides of the ceramic medium layer 1 are symmetrically provided with end heads 3; the ceramic dielectric layers 1 are provided with internal electrodes 2 inside alternately.
The preparation method of the high-mechanical-strength capacitor comprises the following steps:
the first step is as follows: concentrating the particle size distribution of D10, D50 and D90 by an airflow dust collector, wherein D90 is 1.7 μm, D50 is 0.9 μm and D10 is 0.08 μm;
the second step is that: the ceramic dielectric layer 1, the inner electrode 2 and the end 3 are used for manufacturing the high-mechanical-strength capacitor by using the MLCC manufacturing process.
The ceramic powder has a loss factor Df of =1.2% and a breakdown voltage of 40VDC per unit. The flexural strength was 19.25Kgf, and the bending modulus was 2.25 Kgf.
Comparative example No. two
The high mechanical strength capacitor comprises a ceramic dielectric layer 1, an inner electrode 2 and a terminal 3; the two sides of the ceramic medium layer 1 are symmetrically provided with end heads 3; the ceramic dielectric layers 1 are provided with internal electrodes 2 inside alternately.
The preparation method of the high-mechanical-strength capacitor comprises the following steps:
the first step is as follows: concentrating the particle size distribution of D10, D50 and D90 by an airflow dust collector, wherein D90 is 1.5 μm, D50 is 0.7 μm and D10 is 0.05 μm;
the second step is that: the ceramic dielectric layer 1, the inner electrode 2 and the end 3 are used for manufacturing the high-mechanical-strength capacitor by using the MLCC manufacturing process.
The ceramic powder has a loss factor Df of =1.2% and a breakdown voltage of 46VDC per unit. A breaking strength of 19.97Kgf and a bending modulus of 2.301 Kgf.
Comparative example No. three
The high mechanical strength capacitor comprises a ceramic dielectric layer 1, an inner electrode 2 and a terminal 3; the two sides of the ceramic medium layer 1 are symmetrically provided with end heads 3; the ceramic dielectric layers 1 are provided with internal electrodes 2 inside alternately.
The preparation method of the high-mechanical-strength capacitor comprises the following steps:
the first step is as follows: concentrating the particle size distribution of D10, D50 and D90 by an airflow dust collector, wherein D90 is 1.4 μm, D50 is 0.6 μm and D10 is 0.04 μm;
the second step is that: the ceramic dielectric layer 1, the inner electrode 2 and the end 3 are used for manufacturing the high-mechanical-strength capacitor by using the MLCC manufacturing process.
The ceramic powder has a loss factor Df of =1.1% and a breakdown voltage of 55VDC per unit. The breaking strength was 20.45Kgf, and the bending modulus was 2.368 Kgf.
Example one
As shown in fig. 1 to 4, the high mechanical strength capacitor includes a ceramic dielectric layer 1, an inner electrode 2 and a terminal 3; the two sides of the ceramic medium layer 1 are symmetrically provided with end heads 3; the ceramic dielectric layers 1 are provided with internal electrodes 2 inside alternately.
The preparation method of the high-mechanical-strength capacitor comprises the following steps:
the first step is as follows: the ceramic powder is ground at an accelerated grinding speed by adding large, medium and small zirconium balls according to a matching ratio and a water-material ratio, wherein the large, medium and small ratios are 0.5:1:1.5, and the water-material ratio is 1:1, grinding at a grinding speed of 500rpm/1min, and controlling the particle size to be less than or equal to 0.4 mu m;
the second step is that: iron impurities generated by metal debris during grinding of the material are filtered out through iron removal and sieving actions;
the third step: after being screened, the pulp enters a centrifugal spray dryer for drying, and after being atomized by the dryer, the pulp is dehydrated to leave dry powder;
the fourth step: the particle size distribution of D10, D50 and D90 is concentrated by an airflow dust collector, and the performance of D10 is less than twice that of D50;
the fifth step: matching with the manufacturing process of the capacitor, the thickness of the green body is 5.0 mu m +/-0.5 mu m;
and a sixth step: stacking the green bodies in a condition of being thin and capable of being stacked into a plurality of layers, and applying a high-strength surface pressure of more than 15000 Psi to enable the green bodies to reach a firm state to prepare the ceramic dielectric layer 1;
the seventh step: the ceramic dielectric layer 1, the inner electrode 2 and the end 3 are used for manufacturing the high-mechanical-strength capacitor by using the MLCC manufacturing process.
After the ceramic particle size is refined, the BET specific surface area is improved, the sintering temperature is relatively reduced, and the crystal compactness is greatly improved.
The mechanical strength is improved by 7-10% of the growth of the ceramic powder, and the breakdown voltage is also improved by 3-5%.
The particle size analyzer identifies that the D90, D50 and D10 of the ceramic powder are respectively 0.8 mu m, 0.4 mu m and 0.2 mu m.
The dielectric constant K of the ceramic powder after the particle size of the powder is changed is 3300-3500, the loss coefficient Df is less than or equal to 0.7 percent, and the material mainly containing Ba and Ti has high dielectric constant and low loss.
The ceramic powder is used for manufacturing a thin band with the thickness of 5.0 mu m +/-0.5 mu m and the sintering condition of 1300 ℃.
The ceramic powder body is used for manufacturing a capacitor, the capacitance value Cp reaches 50-150nF, and the loss coefficient Df is 0.7%.
The ceramic powder system is used for manufacturing a capacitor, and the breakdown voltage reaches 70VDC per unit.
The bending strength of the capacitor made of the ceramic powder is improved by 7-10% compared with that of the capacitor made of the prior art by 21.18 Kgf, and the bending coefficient is improved by 5-7% compared with that of the capacitor made of the prior art by 2.408 Kgf.
The following table compares the results before and after the improvements in making the capacitor:
the above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (10)
1. A high mechanical strength capacitor, characterized in that: comprises a ceramic dielectric layer (1), an inner electrode (2) and a terminal (3); the two sides of the ceramic medium layer (1) are symmetrically provided with end heads (3); the inner electrodes (2) are alternately arranged in the ceramic medium layer (1).
2. A method for producing a high mechanical strength capacitor as claimed in claim 1, characterized by comprising the steps of:
the first step is as follows: the ceramic powder is ground at an accelerated grinding speed by adding large, medium and small zirconium balls according to a matching ratio and a water-material ratio, wherein the large, medium and small ratios are 0.5:1:1.5, and the water-material ratio is 1:1, grinding at 500rpm/1min, and controlling the particle size to be less than or equal to 0.4 mu m;
the second step is that: iron impurities generated by metal debris during grinding of the material are filtered out through iron removal and sieving actions;
the third step: after being screened, the pulp enters a centrifugal spray dryer for drying, and after being atomized by the dryer, the pulp is dehydrated to leave dry powder;
the fourth step: the particle size distribution of D10, D50 and D90 is concentrated by an airflow dust collector, and the performance of D10 is less than twice that of D50;
the fifth step: matching with the manufacturing process of the capacitor, the thickness of the green body is 5.0 mu m +/-0.5 mu m;
and a sixth step: stacking the green bodies in a condition of being thin and capable of being stacked into a plurality of layers, and applying a high-strength surface pressure of more than 15000 Psi to enable the green bodies to reach a firm state to prepare a ceramic medium layer (1);
the seventh step: the ceramic dielectric layer (1), the inner electrode (2) and the end (3) are used for manufacturing the high-mechanical-strength capacitor by using the MLCC manufacturing process.
3. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: after the ceramic particle size is refined, the BET specific surface area is improved, the sintering temperature is relatively reduced, and the crystal compactness is greatly improved.
4. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: the mechanical strength is improved by 7-10% of the growth of the ceramic powder, and the breakdown voltage is also improved by 3-5%.
5. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: the grain size analyzer identifies that the D90, D50 and D10 of the ceramic powder are respectively 0.8 mu m, 0.4 +/-0.05 mu m and 0.2 mu m respectively.
6. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: the dielectric constant K of the ceramic powder after the particle size of the powder is changed is 3300-3500, the loss coefficient Df is less than or equal to 0.6 percent, and the material mainly containing Ba and Ti has high dielectric constant and low loss.
7. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: the ceramic powder is used for manufacturing a thin band with the thickness of 5.0 mu m +/-0.5 mu m and the sintering condition of 1300 ℃.
8. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: the ceramic powder body is used for manufacturing a capacitor, the capacitance value Cp reaches 50-150nF, and the loss coefficient Df is 0.7%.
9. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: the ceramic powder system is used for manufacturing a capacitor, and the breakdown voltage reaches 70VDC per unit.
10. The method for producing a high mechanical strength capacitor as claimed in claim 2, wherein: the bending strength of the capacitor made of the ceramic powder is improved by 7-10% compared with that of the capacitor made by the prior art, and the bending coefficient is improved by 5-7% compared with that of the capacitor made by the prior art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217878.XA CN111063543A (en) | 2019-12-03 | 2019-12-03 | High-mechanical-strength capacitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911217878.XA CN111063543A (en) | 2019-12-03 | 2019-12-03 | High-mechanical-strength capacitor and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111063543A true CN111063543A (en) | 2020-04-24 |
Family
ID=70299521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911217878.XA Pending CN111063543A (en) | 2019-12-03 | 2019-12-03 | High-mechanical-strength capacitor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111063543A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128690A1 (en) * | 2019-12-26 | 2021-07-01 | 南京汇聚新材料科技有限公司 | Capacitor having improved voltage resistance and insulation impedance resistance |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685454A (en) * | 2002-10-28 | 2005-10-19 | 松下电器产业株式会社 | Process for producing laminated ceramic capacitor |
| CN1783375A (en) * | 2004-11-25 | 2006-06-07 | 京瓷株式会社 | Multilayer ceramic capacitor and method for manufacturing the same |
| CN1841588A (en) * | 2005-03-29 | 2006-10-04 | 三星电机株式会社 | Method for manufacturing dielectric ceramic powder, and multilayer ceramic capacitor |
| CN101634112A (en) * | 2008-07-24 | 2010-01-27 | 千宝实业股份有限公司 | Nano-meter far infrared cloth |
| CN101795774A (en) * | 2007-09-04 | 2010-08-04 | 寿技研工业株式会社 | Sand making apparatus, sand making method, and made sand |
| CN102034604A (en) * | 2009-09-29 | 2011-04-27 | 无锡隆傲电子有限公司 | High-temperature-stability ceramic capacitor and preparation method thereof |
| CN209577358U (en) * | 2019-03-01 | 2019-11-05 | 全程洋 | A kind of construction screening plant |
-
2019
- 2019-12-03 CN CN201911217878.XA patent/CN111063543A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685454A (en) * | 2002-10-28 | 2005-10-19 | 松下电器产业株式会社 | Process for producing laminated ceramic capacitor |
| CN1783375A (en) * | 2004-11-25 | 2006-06-07 | 京瓷株式会社 | Multilayer ceramic capacitor and method for manufacturing the same |
| CN1841588A (en) * | 2005-03-29 | 2006-10-04 | 三星电机株式会社 | Method for manufacturing dielectric ceramic powder, and multilayer ceramic capacitor |
| CN101795774A (en) * | 2007-09-04 | 2010-08-04 | 寿技研工业株式会社 | Sand making apparatus, sand making method, and made sand |
| CN101634112A (en) * | 2008-07-24 | 2010-01-27 | 千宝实业股份有限公司 | Nano-meter far infrared cloth |
| CN102034604A (en) * | 2009-09-29 | 2011-04-27 | 无锡隆傲电子有限公司 | High-temperature-stability ceramic capacitor and preparation method thereof |
| CN209577358U (en) * | 2019-03-01 | 2019-11-05 | 全程洋 | A kind of construction screening plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128690A1 (en) * | 2019-12-26 | 2021-07-01 | 南京汇聚新材料科技有限公司 | Capacitor having improved voltage resistance and insulation impedance resistance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6511564B2 (en) | Method for producing ceramic slurry, ceramic green sheet, and fabricating monolithic ceramic electronic component | |
| US7361242B2 (en) | Ceramic slurry composition and methods for producing ceramic green sheet and multilayer ceramic electronic device | |
| US20020141139A1 (en) | Method for making barium titanate powder, barium titanate powder prepared by the method, dielectric ceramic compact, and monolithic ceramic capacitor | |
| CN111063543A (en) | High-mechanical-strength capacitor and preparation method thereof | |
| US6579394B1 (en) | Method of producing ceramic slurry, ceramic slurry composition, ceramic green sheet and multilayer ceramic electronic part | |
| CN111266162A (en) | Preparation method of nano silicon powder | |
| EP0925861B1 (en) | Nickel ultrafine powder | |
| CN113880569A (en) | Dielectric material of multilayer chip ceramic capacitor and preparation method thereof | |
| JPH10270284A (en) | Manufacture of dielectric ceramic material | |
| US20100157508A1 (en) | Method of manufacturing complex oxide nano particles and complex oxide nano particles manufactured by the same | |
| CN116612993A (en) | Preparation method of sintered anode aluminum foil and sintered anode aluminum foil | |
| CN109734440B (en) | SrTiO with heterogeneous layered structure3Base energy storage medium ceramic and preparation method thereof | |
| CN110970218A (en) | Capacitor for improving voltage resistance and insulation resistance | |
| CN101817686B (en) | Doped and modified barium titanate composite particle and preparation method thereof | |
| CN113831123B (en) | Dielectric ceramic material for barium titanate-based chip capacitor and preparation method and application thereof | |
| CN112960981B (en) | Preparation method of lanthanum-tin doped lead zirconate titanate ceramic material | |
| JP2001039773A (en) | Production of ceramic slurry, ceramic green sheet and laminated ceramic electronic parts | |
| JP3675254B2 (en) | Method for manufacturing ceramic slurry, ceramic green sheet and multilayer ceramic electronic component | |
| WO2022055612A1 (en) | Freeze drying and tumble drying of flake powder | |
| JP2005079333A (en) | Valve action metal powder for dispersion, and solid electrolytic capacitor using the same | |
| KR20180115373A (en) | Method of dielectric ceramic composition for mlcc | |
| US6343002B1 (en) | Electroconductive paste, laminated ceramic capacitor, and method for manufacturing the same | |
| KR101064384B1 (en) | Nickel based ultrafine powder | |
| CN1211316C (en) | Dielectric ceramic material, preparation method thereof and method for producing ceramic capacitor | |
| CN1629991A (en) | Method for preparation of thin-medium chip ceramic capacitor with large number of layers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200424 |