CN109265163A - The preparation method of ceramic capacitor - Google Patents
The preparation method of ceramic capacitor Download PDFInfo
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- CN109265163A CN109265163A CN201811148832.2A CN201811148832A CN109265163A CN 109265163 A CN109265163 A CN 109265163A CN 201811148832 A CN201811148832 A CN 201811148832A CN 109265163 A CN109265163 A CN 109265163A
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- potsherd
- ceramic capacitor
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- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000005498 polishing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000011812 mixed powder Substances 0.000 claims abstract description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims abstract description 5
- 230000008595 infiltration Effects 0.000 claims abstract description 4
- 238000001764 infiltration Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 244000137852 Petrea volubilis Species 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 14
- 229910002113 barium titanate Inorganic materials 0.000 abstract description 7
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000006104 solid solution Substances 0.000 abstract description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- 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
- C04B35/4682—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 based on BaTiO3 perovskite phase
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
-
- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
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- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6582—Hydrogen containing atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Capacitors (AREA)
Abstract
The invention discloses a kind of preparation method of ceramic capacitor, include the following steps: 1) to choose TiO2, BaTiO3 mixed-powder to be put into mold and carried out by press machine dry-pressing formed, obtains the ceramic dielectric green compact of capacitor；2) being placed in above-mentioned ceramic dielectric green compact can control in the high temperature furnace of atmosphere, 1300-1340 DEG C at a temperature of be sintered, obtain potsherd；3) face carried out to the potsherd carries out polishing and cleaning treatment；4) to the surface burning infiltration electrode of two opposition of the potsherd after cleaning, ceramic capacitor is obtained.The present invention uses TiO2, BaTiO3 mixed-powder firing ceramics piece, and use process for solid phase synthesis, raw material are made to become solid solution, the stability for improving product is handled potsherd using polishing and cleaning treatment process, improve the quality of final products, in addition, reducing cost as external extraction electrode using copper alloy.
Description
Technical field
The present invention relates to a kind of preparation methods of ceramic capacitor.
Background technique
With the rapid development of electronic technology, electronic component increasingly to miniaturization, multifunction, high reliability and it is low at
This direction is developed, and it is interior that temperature compensating type multilayer type ceramic dielectric capacitor, which all uses precious metals ag/Pd material, both at home and abroad at present
Electrode, the product high for some quality requirements is even using electrode in full Pd, and termination electrode is then Ag, necessarily causes to give birth in this way
The excessively high problem of cost is produced, in addition, the stability of existing ceramic capacitor and end product quality be not high.
Summary of the invention
To overcome disadvantages mentioned above, and a kind of end product quality good the purpose of the present invention is to provide at low cost, stability
The preparation method of high ceramic capacitor.
In order to reach the goals above, the technical solution adopted by the present invention is that: a kind of preparation method of ceramic capacitor, including
Following steps:
1) selection TiO2, BaTiO3 mixed-powder, which is put into mold, carries out dry-pressing formed, acquisition capacitor by press machine
Ceramic dielectric green compact；
2) being placed in above-mentioned ceramic dielectric green compact can control in the high temperature furnace of atmosphere, in 1300-1340 DEG C of temperature
It is sintered, obtains potsherd；
3) face carried out to the potsherd carries out polishing and cleaning treatment；
4) to the surface burning infiltration electrode of two opposition of the potsherd after cleaning, ceramic capacitor is obtained.
Preferably, the ratio of the TiO2 in the step 1) and BaTiO3 was 1:4, using batch mixer mixing 5-10 minutes.
Preferably, the pressure of the press machine in the step 1) is 25-30MPa.
Preferably, the entire sintering process in the step 2) is containing H2N2It is carried out under atmosphere protection.
Preferably, the polishing in the step 3) using sand paper by manually being carried out, and the potsherd for fighting each other honed is using rolling
Wheel carries out surface dust.
Preferably, the electrode in the step 4) is the electrode using copper alloy pulp layer.
Beneficial effects of the present invention: TiO2, BaTiO3 mixed-powder firing ceramics piece are used, and uses synthesis in solid state work
Skill makes raw material become solid solution, improves the stability of product, using polishing and cleaning treatment process, at potsherd
Reason, improves the quality of final products, in addition, reducing cost as external extraction electrode using copper alloy.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
One of the present embodiment, the preparation method including a kind of ceramic capacitor, it is characterised in that include the following steps:
1) TiO2, BaTiO3 mixed-powder that selection ratio is 1:4 are put into mold through press machine 25-30MPa's
It carries out dry-pressing formed under pressure, obtains the ceramic dielectric green compact of capacitor；
2) being placed in above-mentioned ceramic dielectric green compact can control in the high temperature furnace of atmosphere, 1300-1340 DEG C at a temperature of
It is sintered, obtains potsherd；
3) face carried out to the potsherd carries out polishing and cleaning treatment；
4) to the surface burning infiltration electrode of two opposition of the potsherd after cleaning, ceramic capacitor is obtained.
Wherein, TiO2, BaTiO3 formed uniform mixed-powder using batch mixer mixing 5-10 minutes.Entire sintering process exists
Contain H2N2It is carried out under atmosphere protection.
In order to improve product quality, the polishing in the step 3) using sand paper by manually being carried out, honed pottery of fighting each other
Tile carries out surface dust using idler wheel.
Electrode in the step 4) is the electrode using copper alloy pulp layer.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention
The equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.
Claims (6)
1. a kind of preparation method of ceramic capacitor, it is characterised in that include the following steps:
1) it T iO2, BaT iO3 mixed-powder is chosen is put into mold and carried out by press machine dry-pressing formed, obtain capacitor
Ceramic dielectric green compact；
2) being placed in above-mentioned ceramic dielectric green compact can control in the high temperature furnace of atmosphere, 1300-1340 DEG C at a temperature of carry out
Sintering, obtains potsherd；
3) face carried out to the potsherd carries out polishing and cleaning treatment；
4) to the surface burning infiltration electrode of two opposition of the potsherd after cleaning, ceramic capacitor is obtained.
2. the preparation method of ceramic capacitor described in claim 1, it is characterised in that: T iO2 and BaT in the step 1)
The ratio of iO3 was 1:4, using batch mixer mixing 5-10 minutes.
3. the preparation method of ceramic capacitor of any of claims 1 or 2, it is characterised in that: the press machine in the step 1)
Pressure be 25-30MPa.
4. the preparation method of ceramic capacitor according to claim 1, it is characterised in that: the entire burning in the step 2)
Knot process is containing H2N2It is carried out under atmosphere protection.
5. the preparation method of ceramic capacitor according to claim 1, it is characterised in that: the polishing in the step 3) is logical
It crosses and is manually carried out using sand paper, honed potsherd of fighting each other carries out surface dust using idler wheel.
6. the preparation method of ceramic capacitor according to claim 1, it is characterised in that: the electrode in the step 4) is
Using the electrode of copper alloy pulp layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811148832.2A CN109265163A (en) | 2018-09-29 | 2018-09-29 | The preparation method of ceramic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811148832.2A CN109265163A (en) | 2018-09-29 | 2018-09-29 | The preparation method of ceramic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109265163A true CN109265163A (en) | 2019-01-25 |
Family
ID=65195765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811148832.2A Pending CN109265163A (en) | 2018-09-29 | 2018-09-29 | The preparation method of ceramic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109265163A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014002B1 (en) * | 1979-01-29 | 1984-05-16 | Nec Corporation | (1-x)BaO.xTiO2 System dielectric material for use in a microwave device |
| US6358464B1 (en) * | 2000-03-04 | 2002-03-19 | Korea Advanced Institute Of Science And Technology | Method for making BaTiO3-based dielectric |
| CN1461022A (en) * | 2003-06-27 | 2003-12-10 | 清华大学 | Basic metal electrode multilayer cermaic capcitor medium material and its preparation method |
| CN1507640A (en) * | 2002-02-13 | 2004-06-23 | ���µ�����ҵ��ʽ���� | Ceramic capacitor and method of manufacturing the same |
| CN2788324Y (en) * | 2005-02-06 | 2006-06-14 | 史宝林 | Circular high voltage ceramic capacitor base metal electrode |
| CN101145447A (en) * | 2006-09-15 | 2008-03-19 | 太阳诱电株式会社 | Multi-layer ceramic capacitor |
| CN103247362A (en) * | 2013-04-17 | 2013-08-14 | 隆科电子(惠阳)有限公司 | Base metal combined electrode of electronic ceramic part and preparation method of base metal combined electrode |
| CN107731565A (en) * | 2017-10-18 | 2018-02-23 | 德清鼎兴电子有限公司 | A kind of NiTi copper multidimensional structure capacitance electrode and its preparation technology |
-
2018
- 2018-09-29 CN CN201811148832.2A patent/CN109265163A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014002B1 (en) * | 1979-01-29 | 1984-05-16 | Nec Corporation | (1-x)BaO.xTiO2 System dielectric material for use in a microwave device |
| US6358464B1 (en) * | 2000-03-04 | 2002-03-19 | Korea Advanced Institute Of Science And Technology | Method for making BaTiO3-based dielectric |
| CN1507640A (en) * | 2002-02-13 | 2004-06-23 | ���µ�����ҵ��ʽ���� | Ceramic capacitor and method of manufacturing the same |
| CN1461022A (en) * | 2003-06-27 | 2003-12-10 | 清华大学 | Basic metal electrode multilayer cermaic capcitor medium material and its preparation method |
| CN2788324Y (en) * | 2005-02-06 | 2006-06-14 | 史宝林 | Circular high voltage ceramic capacitor base metal electrode |
| CN101145447A (en) * | 2006-09-15 | 2008-03-19 | 太阳诱电株式会社 | Multi-layer ceramic capacitor |
| CN103247362A (en) * | 2013-04-17 | 2013-08-14 | 隆科电子(惠阳)有限公司 | Base metal combined electrode of electronic ceramic part and preparation method of base metal combined electrode |
| CN107731565A (en) * | 2017-10-18 | 2018-02-23 | 德清鼎兴电子有限公司 | A kind of NiTi copper multidimensional structure capacitance electrode and its preparation technology |
Non-Patent Citations (5)
| Title |
|---|
| KEVIN W.KIRBY ET AL.: "Phase relations in the barium titanate-titanium oxide system", 《JOURNAL OF THE AMERICAN CERAMIC SOCIETY》 * |
| SHINICHI MIURA ET AL.: "Liquid phase and electrical conductivity in TiO2 added BaTiO3 Ceramics", 《JOURNAL OF THE CERAMIC SOCIETY OF JAPAN》 * |
| WU YUCHUAN ET AL.: "Dislocation loops in pressureless-sintered undoped BaTiO3 ceramics", 《JOURNAL OF THE AMERICAN CERAMIC SOCIETY》 * |
| 曲远方: "《现代陶瓷材料及技术》", 31 May 2008, 华东理工大学出版社 * |
| 李杨 等: "《电子工艺实训》", 1 May 2016, 西安电子科技大学出版社 * |
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