CN107151140A - A kind of ceramic capacity medium with low consumption and high pressure resisting and preparation method thereof - Google Patents
A kind of ceramic capacity medium with low consumption and high pressure resisting and preparation method thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000013064 chemical raw material Substances 0.000 claims abstract description 36
- 229910002976 CaZrO3 Inorganic materials 0.000 claims abstract description 35
- 229910002113 barium titanate Inorganic materials 0.000 claims abstract description 28
- UPWOEMHINGJHOB-UHFFFAOYSA-N cobalt(III) oxide Inorganic materials O=[Co]O[Co]=O UPWOEMHINGJHOB-UHFFFAOYSA-N 0.000 claims abstract description 24
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910014031 strontium zirconium oxide Inorganic materials 0.000 claims abstract description 20
- 239000003985 ceramic capacitor Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052709 silver Inorganic materials 0.000 claims abstract description 16
- 239000004332 silver Substances 0.000 claims abstract description 16
- 238000000498 ball milling Methods 0.000 claims abstract description 15
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 13
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 8
- 238000010304 firing Methods 0.000 claims abstract description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
- 229940068984 polyvinyl alcohol Drugs 0.000 claims abstract description 8
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims abstract description 8
- 229910000679 solder Inorganic materials 0.000 claims abstract description 8
- 238000010532 solid phase synthesis reaction Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 30
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 28
- 238000003746 solid phase reaction Methods 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 26
- 238000010671 solid-state reaction Methods 0.000 claims description 24
- 229910002370 SrTiO3 Inorganic materials 0.000 claims description 15
- 239000004615 ingredient Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 7
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Inorganic materials [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 239000012153 distilled water Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 229910000018 strontium carbonate Inorganic materials 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000007873 sieving Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 7
- 239000003292 glue Substances 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- JYPVGDJNZGAXBB-UHFFFAOYSA-N bismuth lithium Chemical compound [Li].[Bi] JYPVGDJNZGAXBB-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- C04B35/49—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 zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates
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- 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
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Abstract
The invention discloses a kind of ceramic capacity medium with low consumption and high pressure resisting and preparation method thereof, belong to field of capacitor manufacture, be made up of the raw material of following weight percentage：BaTiO3 58.1‑73.4%、MgSnO3 7.2‑16.8%、SrZrO3 6.5‑15.0%、CaZrO3 3.7‑12.4%、Nb2O50.6‑1.5%、CeO2 0.4‑1.2%、ZnO 0.2‑1.0%、Co2O30.1‑1.0%、MgO 0.1‑0.5%.Preparation method is first to be respectively synthesized BaTiO with solid phase method using conventional chemical raw material3、MgSnO3、SrZrO3、CaZrO3, then by formula dispensing, the material prepared is mixed with water for ball milling, dry mash is dried to obtain afterwards, then poly-vinyl alcohol solution is added in dry mash, is granulated, mixed rear sieving, green sheet is pressed into again, dumping, sintering and silver ink firing are carried out, silver electrode, then solder taul is formed, encapsulated, produce ceramic capacitor.The ceramic capacitor dielectric dielectric constant of the present invention is high, and proof voltage is high, and percentage of capacitance variation with temperature is small, meets the requirement of Y5U characteristics, environmentally safe, meets the standard of environmental protection.
Description
Technical field
The invention belongs to field of capacitor manufacture, and in particular to a kind of ceramic capacity medium with low consumption and high pressure resisting and its system
Preparation Method.
Background technology
The fields such as colour TV, computer, communication, Aero-Space, guided missile, navigation are in the urgent need to breakdown voltage is high, temperature stabilization
Property good, reliability it is high, miniaturization, the ceramic capacitor of Large Copacity., in order to realize miniaturization and the Large Copacity of ceramic capacitor
Seeking the dielectric of ceramic capacitor has high-k；In order to realize that the breakdown voltage of ceramic capacitor is high, it is desirable to ceramic electrical
The dielectric proof voltage of container is high；Meanwhile, as people are to healthy and environmental protection pay attention to day by day, it is desirable to ceramic condenser
The dielectric of device will not cause harm during preparing, using and discarding to human body and environment, thus require ceramic condenser
The metallic elements such as the not leaded, cadmium of dielectric of device.
At present, it is generally employed to produce in the dielectric of high voltage ceramic capacitor and contains a certain amount of lead, this is not only in ceramics
The production of capacitor, using and waste procedures in human body and environment are caused harm, it is and stable to the performance of ceramic capacitor
Property also has harmful effect.For example, Chinese periodical《Jiangsu ceramics》2nd phase in 1999 is in " BaTiO3It is the high Jie X7R electricity of easy fired
A kind of BaTiO is disclosed herein in container porcelain " one3Middle easy fired height, which is situated between, meets the capacitor ceramics medium of X7R characteristics, Jie
Low-melting glass material contained by matter is lead borosilicate low-melting glass, and medium is leaded, and is not directed to proof voltage, and dielectric is normal
Number is less than 3500.And for example, Chinese invention patent application prospectus CN1212443A is (entitled " in high Jie's high-performance
Warm sintered chip multilayer ceramic capacitor porcelain ", number of patent application is 97117286.2) disclosed Ceramic material of ceramic capacitor
Although dielectric constant height (dielectric constant >=16000), proof voltage is poor (proof voltage is 700V/mm), its component contains in addition
A certain amount of lead.Further, (entitled " high-performance medium-temperature burns Chinese invention patent application prospectus CN1212444A
Tie chip multilayer ceramic capacitor porcelain ", number of patent application is 97117287.0) disclosed capacitor ceramics dielectric constant
Too small (dielectric constant is 3000), dielectric loss is less than 1.5%, and proof voltage is relatively low (proof voltage is 860V/mm), in addition its group
Divide and contain a certain amount of lead.
Although the dielectric of some ceramic capacitors is not leaded, production in ceramic capacitor, using and waste procedures in
Harm to human body and environment is smaller, but its dielectric constant is too small, and/or proof voltage is relatively low.For example, Chinese periodical《Electronics
Element and material》5th phase in 1989 is disclosed herein a kind of high voltage ceramic capacitor in " high Jie's high pressure 2B4 media ceramics " one and is situated between
Material, the dielectric constant of this dielectric material is too small (permittivity ε=2500-2600), tg δ=0.5-1.4%, resistance to pressure
Poor (DC break down voltage intensity is 7KV/mm).And for example, Chinese invention patent application prospectus CN1306288A (denominations of invention
For " a kind of high-voltage ceramic condenser medium ", though number of patent application be 00112050.6) disclosed in capacitor ceramic dielectric category nothing
Lead dielectric material, its direct current proof voltage can reach more than 10kV/mm, but dielectric constant is too small that (dielectric constant is 1860-
3300), sintering temperature is higher (sintering temperature is 1260-1400 DEG C).Further, Chinese invention patent application prospectus
(entitled " a kind of low temperature sintering high-voltage ceramic condenser medium ", number of patent application is CN1619726A
200410041863.x), the weight percent content of its each component is：BaTiO360-90%, SrTiO31-20%,
CaZrO30.1-10%, Nb2O50.01-1%, MgO0.01-1%, CeO20.01-0.8%, ZnO0.01-0.6%,
Co2O30.03-1%, bismuth lithium solid solution 0.05-10%, its dielectric constant are 2000-3000, and proof voltage is more than 6kV/mm, is situated between
Electric constant and proof voltage are still not ideal enough.
The content of the invention
For problems of the prior art, the invention provides a kind of ceramic capacity medium with low consumption and high pressure resisting and
Its preparation method, this kind of ceramic capacitor dielectric dielectric constant is high, and proof voltage is high, and percentage of capacitance variation with temperature is small, meets Y5U characteristics
Requirement, it is environmentally safe.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of ceramic capacity medium with low consumption and high pressure resisting, is made up of the raw material of following weight percentage：BaTiO3 58.1-
73.4%、MgSnO3 7.2-16.8%、SrZrO3 6.5-15.0%、CaZrO3 3.7-12.4%、Nb2O5 0.6-1.5%、CeO2
0.4-1.2%、ZnO 0.2-1.0%、Co2O3 0.1-1.0%、MgO 0.1-0.5%。
Further, it is made up of the raw material of following weight percentage：BaTiO3 60.8-70.1%、MgSnO3 9.5-
14.9%、SrZrO3 8.4-12.1%、CaZrO3 5.8-9.2%、Nb2O5 0.8-1.2%、CeO2 0.6-1.0%、ZnO 0.4-
0.8%、Co2O3 0.3-0.7%、MgO 0.2-0.4%。
Further, it is made up of the raw material of following weight percentage：BaTiO3 65.5%、MgSnO3 12.6%, SrZrO3
10.7%、CaZrO3 7.5%、Nb2O5 1.0%、CeO2 0.8%、ZnO 0.6%、Co2O3 0.5%、MgO 0.3%。
Further, the BaTiO3It is to be prepared using following technique：By conventional chemical raw material BaCO3And TiO2By 1:1
Molar ratio ingredient, is put into alumina crucible after ground and mixed is uniform and is incubated 80-120 minutes in 1120-1260 DEG C, solid phase reaction
Synthesize BaTiO3, ground 150-250 mesh sieves, standby after cooling.
Further, the SrTiO3It is to be prepared using following technique：By conventional chemical raw material SrCO3And TiO2By 1:1
Molar ratio ingredient, is put into alumina crucible after ground and mixed is uniform and is incubated 80-100 minutes in 1150-1250 DEG C, solid phase reaction
Synthesize SrTiO3, ground 150-250 mesh sieves, standby after cooling.
Further, the MgSnO3It is to be prepared using following technique：By conventional chemical raw material MgO and SnO2By 1:1 rubs
You are put into alumina crucible after ground and mixed is uniform than dispensing and are incubated 100-120 minutes in 1160-1280 DEG C, solid phase reaction
Synthesize MgSnO3, ground 150-250 mesh sieves, standby after cooling.
Further, the CaZrO3It is to be prepared using following technique：By conventional chemical raw material CaO and ZrO2By 1:1 rubs
You are put into alumina crucible after ground and mixed is uniform than dispensing and are incubated 100-140 minutes in 1120-1240 DEG C, solid phase reaction
Synthesize CaZrO3, ground 150-250 mesh sieves, standby after cooling.
A kind of described ceramic capacity medium with low consumption and high pressure resisting preparation method, is followed the steps below：
（1）Raw material is weighed by above-mentioned parts by weight；
（2）BaTiO is first respectively synthesized with solid phase method using conventional chemical raw material3 、MgSnO3 、SrZrO3 、CaZrO3, then
By formula dispensing, the material distilled water or deionized water that prepare are used into planetary ball mill ball milling mixing, mass ratio material:Ball:Water=
1:3:0.6-1.0, ball milling dries to obtain dry mash after 4-8 hours；
（3）It is 10% poly-vinyl alcohol solution to be added in dry mash and account for its weight 8-10% concentration, is granulated, mixed rear mistake
40 mesh sieves；
（4）Dry-pressing is carried out under 20-30Mpa pressure again into green sheet, then insulation 2-3 is small in the case where temperature is 1140-1270 DEG C
Shi Jinhang dumpings and sintering, then 15-25 minutes progress silver ink firings are incubated at 780-870 DEG C, silver electrode, then solder taul are formed, is entered
Row encapsulating, produces ceramic capacitor.
The present invention compared with prior art, has the following advantages that：
（1）The dielectric constant of the condenser dielectric of the present invention is high, up to more than 6000；Proof voltage is high, and direct current proof voltage is reachable
More than 20kV/mm, ac voltage withstanding is up to more than 15kV/mm；Dielectric loss is small, is smaller than 0.5%.Because the capacitor of the present invention is situated between
Matter dielectric constant is high, can realize miniaturization and the Large Copacity of ceramic capacitor, can equally reduce cost；
（2）The condenser dielectric of the present invention is intermediate sintering temperature（1140-1270℃）Condenser ceramics, can so substantially reduce energy consumption
With the production cost of ceramic capacitor, in addition, the present invention condenser dielectric component in not leaded and cadmium, it is environmentally safe,
Meet the standard of environmental protection.
（3）The percentage of capacitance variation with temperature of the condenser dielectric of the present invention is small, meets the requirement of Y5U characteristics.Dielectric loss is small
Stability is good during 0.5%, use, safe.
Embodiment
The embodiment of the present invention is further described with reference to embodiment, following examples are only used for more
Technical scheme is clearly demonstrated, and can not be limited the scope of the invention with this.
Embodiment 1
A kind of ceramic capacity medium with low consumption and high pressure resisting, is made up of the raw material of following weight percentage：BaTiO3 58.1%、
MgSnO3 7.2%、SrZrO3 6.5%、CaZrO3 3.7%、Nb2O5 0.6%、CeO2 0.4%、ZnO 0.2%、Co2O3 0.1%、MgO
0.1%。
Wherein, the BaTiO3It is to be prepared using following technique：By conventional chemical raw material BaCO3And TiO2By 1:1 mole
Than dispensing, it is put into after ground and mixed is uniform in alumina crucible and is incubated 80 minutes in 1120 DEG C, solid state reaction kinetics BaTiO3, it is cold
But ground 150 mesh sieve after, it is standby.
The SrTiO3It is to be prepared using following technique：By conventional chemical raw material SrCO3And TiO2By 1:1 mol ratio is matched somebody with somebody
Material, is put into alumina crucible after ground and mixed is uniform and is incubated 80 minutes in 1150 DEG C, solid state reaction kinetics SrTiO3, after cooling
Ground 150 mesh sieve, it is standby.
The MgSnO3It is to be prepared using following technique：By conventional chemical raw material MgO and SnO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 100 minutes in 1160 DEG C, solid state reaction kinetics MgSnO3, ground after cooling
Honed 150-250 mesh sieves, it is standby.
The CaZrO3It is to be prepared using following technique：By conventional chemical raw material CaO and ZrO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 100 minutes in 1120 DEG C, solid state reaction kinetics CaZrO3, ground after cooling
Honed 150 mesh sieve, it is standby.
A kind of described ceramic capacity medium with low consumption and high pressure resisting preparation method, is followed the steps below：
（1）Raw material is weighed by above-mentioned parts by weight；
（2）BaTiO is first respectively synthesized with solid phase method using conventional chemical raw material3 、MgSnO3 、SrZrO3 、CaZrO3, then
By formula dispensing, the material distilled water or deionized water that prepare are used into planetary ball mill ball milling mixing, mass ratio material:Ball:Water=
1:3:0.6, ball milling dries to obtain dry mash after 4 hours；
（3）It is 10% poly-vinyl alcohol solution to be added in dry mash and account for the concentration of its weight 8%, is granulated, mixed to cross 40 afterwards
Mesh sieve；
（4）Dry-pressing is carried out under 20Mpa pressure again into green sheet, then insulation carries out dumping in 2 hours in the case where temperature is 1140 DEG C
And sintering, then 15 minutes progress silver ink firings are incubated at 780 DEG C, silver electrode, then solder taul are formed, is encapsulated, produces ceramic electrical
Container.
Embodiment 2
A kind of ceramic capacity medium with low consumption and high pressure resisting, is made up of the raw material of following weight percentage：BaTiO3 60.8%、
MgSnO3 9.5%、SrZrO3 8.4%、CaZrO3 5.8%、Nb2O5 0.8%、CeO2 0.6%、ZnO 0.4%、Co2O3 0.3%、MgO
0.2%。
Wherein, the BaTiO3It is to be prepared using following technique：By conventional chemical raw material BaCO3And TiO2By 1:1 mole
Than dispensing, it is put into after ground and mixed is uniform in alumina crucible and is incubated 90 minutes in 1140 DEG C, solid state reaction kinetics BaTiO3, it is cold
But ground 180 mesh sieve after, it is standby.
The SrTiO3It is to be prepared using following technique：By conventional chemical raw material SrCO3And TiO2By 1:1 mol ratio is matched somebody with somebody
Material, is put into alumina crucible after ground and mixed is uniform and is incubated 85 minutes in 1180 DEG C, solid state reaction kinetics SrTiO3, after cooling
Ground 180 mesh sieve, it is standby.
The MgSnO3It is to be prepared using following technique：By conventional chemical raw material MgO and SnO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 105 minutes in 1180 DEG C, solid state reaction kinetics MgSnO3, ground after cooling
Honed 180 mesh sieve, it is standby.
The CaZrO3It is to be prepared using following technique：By conventional chemical raw material CaO and ZrO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 110 minutes in 1150 DEG C, solid state reaction kinetics CaZrO3, ground after cooling
Honed 180 mesh sieve, it is standby.
A kind of described ceramic capacity medium with low consumption and high pressure resisting preparation method, is followed the steps below：
（1）Raw material is weighed by above-mentioned parts by weight；
（2）BaTiO is first respectively synthesized with solid phase method using conventional chemical raw material3 、MgSnO3 、SrZrO3 、CaZrO3, then
By formula dispensing, the material distilled water or deionized water that prepare are used into planetary ball mill ball milling mixing, mass ratio material:Ball:Water=
1:3:0.7, ball milling dries to obtain dry mash after 5 hours；
（3）It is 10% poly-vinyl alcohol solution to be added in dry mash and account for the concentration of its weight 8%, is granulated, mixed to cross 40 afterwards
Mesh sieve；
（4）Dry-pressing is carried out under 22Mpa pressure again into green sheet, is then incubated and is arranged in the case where temperature is 1160 DEG C for 2.2 hours
Glue and sintering, then 18 minutes progress silver ink firings are incubated at 800 DEG C, silver electrode, then solder taul are formed, is encapsulated, produces ceramics
Capacitor.
Embodiment 3
A kind of ceramic capacity medium with low consumption and high pressure resisting, is made up of the raw material of following weight percentage：BaTiO3 65.5%、
MgSnO312.6%, SrZrO3 10.7%、CaZrO3 7.5%、Nb2O5 1.0%、CeO2 0.8%、ZnO 0.6%、Co2O3 0.5%、
MgO 0.3%。
Wherein, the BaTiO3It is to be prepared using following technique：By conventional chemical raw material BaCO3And TiO2By 1:1 mole
Than dispensing, it is put into after ground and mixed is uniform in alumina crucible and is incubated 100 minutes in 1170 DEG C, solid state reaction kinetics BaTiO3,
Ground 200 mesh sieve, standby after cooling.
The SrTiO3It is to be prepared using following technique：By conventional chemical raw material SrCO3And TiO2By 1:1 mol ratio is matched somebody with somebody
Material, is put into alumina crucible after ground and mixed is uniform and is incubated 90 minutes in 1200 DEG C, solid state reaction kinetics SrTiO3, after cooling
Ground 200 mesh sieve, it is standby.
Further, the MgSnO3It is to be prepared using following technique：By conventional chemical raw material MgO and SnO2By 1:1 rubs
You are put into alumina crucible after ground and mixed is uniform than dispensing and are incubated 110 minutes in 1210 DEG C, solid state reaction kinetics
MgSnO3, ground 200 mesh sieve, standby after cooling.
The CaZrO3It is to be prepared using following technique：By conventional chemical raw material CaO and ZrO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 120 minutes in 1180 DEG C, solid state reaction kinetics CaZrO3, ground after cooling
Honed 200 mesh sieve, it is standby.
A kind of described ceramic capacity medium with low consumption and high pressure resisting preparation method, is followed the steps below：
（1）Raw material is weighed by above-mentioned parts by weight；
（2）BaTiO is first respectively synthesized with solid phase method using conventional chemical raw material3 、MgSnO3 、SrZrO3 、CaZrO3, then
By formula dispensing, the material distilled water or deionized water that prepare are used into planetary ball mill ball milling mixing, mass ratio material:Ball:Water=
1:3:0.8, ball milling dries to obtain dry mash after 6 hours；
（3）It is 10% poly-vinyl alcohol solution to be added in dry mash and account for the concentration of its weight 9%, is granulated, mixed to cross 40 afterwards
Mesh sieve；
（4）Dry-pressing is carried out under 25Mpa pressure again into green sheet, is then incubated and is arranged in the case where temperature is 1200 DEG C for 2.5 hours
Glue and sintering, then 20 minutes progress silver ink firings are incubated at 820 DEG C, silver electrode, then solder taul are formed, is encapsulated, produces ceramics
Capacitor.
Embodiment 4
A kind of ceramic capacity medium with low consumption and high pressure resisting, is made up of the raw material of following weight percentage：BaTiO3 70.1%、
MgSnO3 14.9%、SrZrO3 12.1%、CaZrO3 9.2%、Nb2O5 1.2%、CeO2 1.0%、ZnO 0.8%、Co2O3 0.7%、
MgO 0.4%。
Wherein, the BaTiO3It is to be prepared using following technique：By conventional chemical raw material BaCO3And TiO2By 1:1 mole
Than dispensing, it is put into after ground and mixed is uniform in alumina crucible and is incubated 110 minutes in 1240 DEG C, solid state reaction kinetics BaTiO3,
Ground 220 mesh sieve, standby after cooling.
The SrTiO3It is to be prepared using following technique：By conventional chemical raw material SrCO3And TiO2By 1:1 mol ratio is matched somebody with somebody
Material, is put into alumina crucible after ground and mixed is uniform and is incubated 95 minutes in 1230 DEG C, solid state reaction kinetics SrTiO3, after cooling
Ground 220 mesh sieve, it is standby.
The MgSnO3It is to be prepared using following technique：By conventional chemical raw material MgO and SnO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 115 minutes in 1260 DEG C, solid state reaction kinetics MgSnO3, ground after cooling
Honed 220 mesh sieve, it is standby.
The CaZrO3It is to be prepared using following technique：By conventional chemical raw material CaO and ZrO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 130 minutes in 1220 DEG C, solid state reaction kinetics CaZrO3, ground after cooling
Honed 220 mesh sieve, it is standby.
A kind of described ceramic capacity medium with low consumption and high pressure resisting preparation method, is followed the steps below：
（1）Raw material is weighed by above-mentioned parts by weight；
（2）BaTiO is first respectively synthesized with solid phase method using conventional chemical raw material3 、MgSnO3 、SrZrO3 、CaZrO3, then
By formula dispensing, the material distilled water or deionized water that prepare are used into planetary ball mill ball milling mixing, mass ratio material:Ball:Water=
1:3:0.9, ball milling dries to obtain dry mash after 7 hours；
（3）It is 10% poly-vinyl alcohol solution to be added in dry mash and account for the concentration of its weight 10%, is granulated, mixed to cross 40 afterwards
Mesh sieve；
（4）Dry-pressing is carried out under 28Mpa pressure again into green sheet, is then incubated and is arranged in the case where temperature is 1250 DEG C for 2.8 hours
Glue and sintering, then 22 minutes progress silver ink firings are incubated at 850 DEG C, silver electrode, then solder taul are formed, is encapsulated, produces ceramics
Capacitor.
Embodiment 5
A kind of ceramic capacity medium with low consumption and high pressure resisting, is made up of the raw material of following weight percentage：BaTiO3 73.4%、
MgSnO3 16.8%、SrZrO3 15.0%、CaZrO3 12.4%、Nb2O5 1.5%、CeO2 1.2%、ZnO 1.0%、Co2O3 1.0%、
MgO 0.5%。
Wherein, the BaTiO3It is to be prepared using following technique：By conventional chemical raw material BaCO3And TiO2By 1:1 mole
Than dispensing, it is put into after ground and mixed is uniform in alumina crucible and is incubated 120 minutes in 1260 DEG C, solid state reaction kinetics BaTiO3,
Ground 250 mesh sieve, standby after cooling.
The SrTiO3It is to be prepared using following technique：By conventional chemical raw material SrCO3And TiO2By 1:1 mol ratio is matched somebody with somebody
Material, is put into alumina crucible after ground and mixed is uniform and is incubated 100 minutes in 1250 DEG C, solid state reaction kinetics SrTiO3, cooling
Ground 250 mesh sieve, standby afterwards.
The MgSnO3It is to be prepared using following technique：By conventional chemical raw material MgO and SnO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 120 minutes in 1280 DEG C, solid state reaction kinetics MgSnO3, ground after cooling
Honed 250 mesh sieve, it is standby.
The CaZrO3It is to be prepared using following technique：By conventional chemical raw material CaO and ZrO2By 1:1 molar ratio ingredient,
It is put into after ground and mixed is uniform in alumina crucible and is incubated 140 minutes in 1240 DEG C, solid state reaction kinetics CaZrO3, ground after cooling
Honed 250 mesh sieve, it is standby.
A kind of described ceramic capacity medium with low consumption and high pressure resisting preparation method, is followed the steps below：
（1）Raw material is weighed by above-mentioned parts by weight；
（2）BaTiO is first respectively synthesized with solid phase method using conventional chemical raw material3 、MgSnO3 、SrZrO3 、CaZrO3, then
By formula dispensing, the material distilled water or deionized water that prepare are used into planetary ball mill ball milling mixing, mass ratio material:Ball:Water=
1:3:1, ball milling dries to obtain dry mash after 8 hours；
（3）It is 10% poly-vinyl alcohol solution to be added in dry mash and account for the concentration of its weight 10%, is granulated, mixed to cross 40 afterwards
Mesh sieve；
（4）Dry-pressing is carried out under 30Mpa pressure again into green sheet, then insulation carries out dumping in 3 hours in the case where temperature is 1270 DEG C
And sintering, then 25 minutes progress silver ink firings are incubated at 870 DEG C, silver electrode, then solder taul are formed, is encapsulated, produces ceramic electrical
Container.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of ceramic capacity medium with low consumption and high pressure resisting, it is characterised in that be made up of the raw material of following weight percentage：
BaTiO3 58.1-73.4%、MgSnO3 7.2-16.8%、SrZrO3 6.5-15.0%、CaZrO3 3.7-12.4%、Nb2O5 0.6-
1.5%、CeO2 0.4-1.2%、ZnO 0.2-1.0%、Co2O3 0.1-1.0%、MgO 0.1-0.5%。
2. a kind of ceramic capacity medium with low consumption and high pressure resisting according to claim 1, it is characterised in that by following weight
The raw material of percentage is made：BaTiO3 60.8-70.1%、MgSnO3 9.5-14.9%、SrZrO3 8.4-12.1%、CaZrO3
5.8-9.2%、Nb2O5 0.8-1.2%、CeO2 0.6-1.0%、ZnO 0.4-0.8%、Co2O3 0.3-0.7%、MgO 0.2-0.4%。
3. a kind of ceramic capacity medium with low consumption and high pressure resisting according to claim 2, it is characterised in that by following weight
The raw material of percentage is made：BaTiO3 65.5%、MgSnO3 12.6%, SrZrO3 10.7%、CaZrO3 7.5%、Nb2O5 1.0%、
CeO2 0.8%、ZnO 0.6%、Co2O3 0.5%、MgO 0.3%。
4. a kind of ceramic capacity medium with low consumption and high pressure resisting according to claim 1, it is characterised in that the BaTiO3
It is to be prepared using following technique：By conventional chemical raw material BaCO3And TiO2By 1:1 molar ratio ingredient, puts after ground and mixed is uniform
Enter in alumina crucible and to be incubated 80-120 minutes in 1120-1260 DEG C, solid state reaction kinetics BaTiO3, ground 150- after cooling
250 mesh sieves, it is standby.
5. a kind of ceramic capacity medium with low consumption and high pressure resisting according to claim 1, it is characterised in that the SrTiO3
It is to be prepared using following technique：By conventional chemical raw material SrCO3And TiO2By 1:1 molar ratio ingredient, puts after ground and mixed is uniform
Enter in alumina crucible and to be incubated 80-100 minutes in 1150-1250 DEG C, solid state reaction kinetics SrTiO3, ground 150- after cooling
250 mesh sieves, it is standby.
6. a kind of ceramic capacity medium with low consumption and high pressure resisting according to claim 1, it is characterised in that the MgSnO3
It is to be prepared using following technique：By conventional chemical raw material MgO and SnO2By 1:1 molar ratio ingredient, puts after ground and mixed is uniform
Enter in alumina crucible and to be incubated 100-120 minutes in 1160-1280 DEG C, solid state reaction kinetics MgSnO3, it is ground after cooling
150-250 mesh sieves, it is standby.
7. a kind of ceramic capacity medium with low consumption and high pressure resisting according to claim 1, it is characterised in that the CaZrO3
It is to be prepared using following technique：By conventional chemical raw material CaO and ZrO2By 1:1 molar ratio ingredient, puts after ground and mixed is uniform
Enter in alumina crucible and to be incubated 100-140 minutes in 1120-1240 DEG C, solid state reaction kinetics CaZrO3, it is ground after cooling
150-250 mesh sieves, it is standby.
8. a kind of ceramic capacity medium with low consumption and high pressure resisting preparation method according to described in any one of claim 1-7, its
It is characterised by, comprises the following steps：
（1）Raw material is weighed by above-mentioned parts by weight；
（2）BaTiO is first respectively synthesized with solid phase method using conventional chemical raw material3 、MgSnO3 、SrZrO3 、CaZrO3, then press
Dispensing is formulated, the material distilled water or deionized water that prepare are used into planetary ball mill ball milling mixing, mass ratio material:Ball:Water=1:
3:0.6-1.0, ball milling dries to obtain dry mash after 4-8 hours；
（3）It is 10% poly-vinyl alcohol solution to be added in dry mash and account for its weight 8-10% concentration, is granulated, mixed rear mistake
40 mesh sieves；
（4）Dry-pressing is carried out under 20-30Mpa pressure again into green sheet, then insulation 2-3 is small in the case where temperature is 1140-1270 DEG C
Shi Jinhang dumpings and sintering, then 15-25 minutes progress silver ink firings are incubated at 780-870 DEG C, silver electrode, then solder taul are formed, is entered
Row encapsulating, produces ceramic capacitor.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060522A (en) * | 2010-11-11 | 2011-05-18 | 汕头高新区松田实业有限公司 | Dielectric medium of ceramic capacitor and preparation method thereof |
| CN103408301A (en) * | 2013-07-19 | 2013-11-27 | 江苏大学 | Ultrahigh voltage ceramic capacitor medium and preparation method thereof |
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2017
- 2017-06-02 CN CN201710406790.7A patent/CN107151140A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060522A (en) * | 2010-11-11 | 2011-05-18 | 汕头高新区松田实业有限公司 | Dielectric medium of ceramic capacitor and preparation method thereof |
| CN103408301A (en) * | 2013-07-19 | 2013-11-27 | 江苏大学 | Ultrahigh voltage ceramic capacitor medium and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《电工材料应用手册》编委会: "《电工材料应用手册》", 31 March 1999, 机械工业出版社 * |
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