CN105272232A - Barium titanate based composite capacitor ceramic material and preparation method thereof - Google Patents
Barium titanate based composite capacitor ceramic material and preparation method thereof Download PDFInfo
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- CN105272232A CN105272232A CN201510654936.0A CN201510654936A CN105272232A CN 105272232 A CN105272232 A CN 105272232A CN 201510654936 A CN201510654936 A CN 201510654936A CN 105272232 A CN105272232 A CN 105272232A
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Abstract
The invention discloses a barium titanate based composite capacitor ceramic material and a preparation method thereof. The ceramic material comprises 4-10 parts of barium titanate, 3-8 parts of calcium zirconate, 2-6 parts of magnesium titanate, 10 copies, 4-10 parts of titanium dioxide, 3-7 parts of calcium titanate, 2-6 parts of aluminum zirconate, and 3-6 parts of strontium zirconate. The preparation method comprises the steps of: (1) subjecting the components to ball milling in a ball mill; (2) stirring the ceramic material powder obtained in step (1) uniformly, then adding polyvinyl alcohol and further performing stirring for 30-60min; (3) pressing the powder material of step (2) into a green body at a compression pressure of 40-70MPa for 3-5h; and (4) subjecting the green body of step (3) to high temperature sintering in a high temperature sintering furnace, and then performing cooling to obtain the barium titanate based composite capacitor ceramic material. The prepared composite capacitor ceramic material has the excellent performance of high compression strength and high breakdown resistance.
Description
Technical field
The invention belongs to capacitance material field, relate to a kind of barium phthalate base recombiner condenser stupalith and preparation method thereof.
Background technology
Ceramic insulation is strong, can be made into high withstand voltage electrical condenser; Pottery ground container there is resistant to elevated temperatures feature, can up to
Normally work under the condition of 500 ~ 600 DEG C; Temperature factor religion is wide; The erosion of acid-and base-resisting, salt and water; Stupalith tangent value
tg δvery little with the relation of frequency, therefore, ceramic condenser is widely used in high frequency circuit, the dielectric coefficient of pottery
εvery large, the volume of ceramic dielectric electrical condenser can be made to do very little.Be squeezed into pipe, disk or disk as medium with the condenser ceramics < barium titanate titanium monoxide > of high-k, and silver be plated in by burning infiltration method the ceramic condenser that pottery is made as electrode and divide again radioceramic to be situated between and low frequency porcelain is situated between two kinds.There is the electrical condenser of little positive capacitance temperature factor, in high stable oscillator circuit, as tank capacitors and permaliner.Low frequency ceramic capacitor is limited to does bypass or stopping direct current in the loop that operating frequency is lower, or comprises high frequency > to stability and the less demanding occasion < of loss.This electrical condenser should not be used in pulsing circuit, because they are easy to by impulse voltage flashover.In sum, need to improve the compressive strength of ceramic condenser and resistance toly puncture number of times.
Summary of the invention
The technical problem solved: the application approach of barium titanate based ceramic material is very many, the object of the invention is to improve the resistance to number of times punctured under the compressive strength of barium phthalate base capacitance ceramic material and high pressure, improve the electric property of barium titanate based ceramic material, improve its preparation technology.
Technical scheme: the invention discloses a kind of barium phthalate base recombiner condenser stupalith, described recombiner condenser stupalith comprises the composition of following weight parts:
Barium titanate 4-10 part,
Calcium zirconate 3-8 part,
Magnesium titanate 2-6 part,
Titanium dioxide 4-10 part,
Calcium titanate 3-7 part,
Zirconic acid aluminium 2-6 part,
Strontium zirconate 3-6 part.
As the scheme implemented further, described a kind of barium phthalate base recombiner condenser stupalith, described recombiner condenser stupalith comprises the composition of following weight parts:
Barium titanate 5-9 part,
Calcium zirconate 4-7 part,
Magnesium titanate 3-5 part,
Titanium dioxide 6-9 part,
Calcium titanate 4-6 part,
Zirconic acid aluminium 3-5 part,
Strontium zirconate 4-5 part.
A preparation method for barium phthalate base recombiner condenser stupalith, described preparation method comprises the steps:
(1) barium titanate 4-10 part, calcium zirconate 3-8 part, magnesium titanate 2-6 part, titanium dioxide 4-10 part, calcium titanate 3-7 part, zirconic acid aluminium 2-6 part, strontium zirconate 3-6 part is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 15:1-25:1, Ball-milling Time is 3-6h, and drum's speed of rotation is 110-150r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 30-60min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 40-70MPa, and the press time is 3-5h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1010-1130 DEG C, and sintering time is 2-5h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
As the scheme implemented further, the preparation method of described a kind of barium phthalate base recombiner condenser stupalith, in described step (1), in ball mill, ratio of grinding media to material is 20:1.
As the scheme implemented further, the preparation method of described a kind of barium phthalate base recombiner condenser stupalith, in described step (3), pressurization pressure is 55MPa, and the press time is 4h.
As the scheme implemented further, the preparation method of described a kind of barium phthalate base recombiner condenser stupalith, in described step (4), high temperature sintering temperature is 1060 DEG C.
As the scheme implemented further, the preparation method of described a kind of barium phthalate base recombiner condenser stupalith, in described step (4), sintering time is 4h.
Beneficial effect: carry out reasonably optimizing by the parameter of the preparation technology to electrical condenser stupalith and composition thereof, under the compressive strength of the barium phthalate base recombiner condenser stupalith that method of the present invention obtains and high pressure, the resistance to number of times that punctures obtains remarkable lifting, capacitance ceramic material after improvement effectively in the manufacture of electrical condenser, can improve the wearing quality of electrical condenser.
Embodiment
Embodiment 1
(1) barium titanate 10 parts, calcium zirconate 3 parts, magnesium titanate 6 parts, titanium dioxide 4 parts, calcium titanate 7 parts, 2 parts, zirconic acid aluminium, strontium zirconate 6 parts is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 25:1, Ball-milling Time is 3h, and drum's speed of rotation is 150r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 60min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 70MPa, and the press time is 3h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1130 DEG C, and sintering time is 5h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
The compressive strength of the recombiner condenser stupalith of embodiment 1 is 17KV/mm, and under 12KV, bump 20,000 times is without punch-through.
Embodiment 2
(1) barium titanate 4 parts, calcium zirconate 8 parts, magnesium titanate 2 parts, titanium dioxide 10 parts, calcium titanate 3 parts, 6 parts, zirconic acid aluminium, strontium zirconate 3 parts is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 15:1, Ball-milling Time is 6h, and drum's speed of rotation is 110r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 30min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 40MPa, and the press time is 5h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1010 DEG C, and sintering time is 2h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
The compressive strength of the recombiner condenser stupalith of embodiment 2 is 17KV/mm, and under 12KV, bump 20,000 times is without punch-through.
Embodiment 3
(1) barium titanate 5 parts, calcium zirconate 7 parts, magnesium titanate 3 parts, titanium dioxide 9 parts, calcium titanate 6 parts, 5 parts, zirconic acid aluminium, strontium zirconate 4 parts is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 25:1, Ball-milling Time is 3h, and drum's speed of rotation is 150r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 60min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 70MPa, and the press time is 3h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1130 DEG C, and sintering time is 5h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
The compressive strength of the recombiner condenser stupalith of embodiment 3 is 18KV/mm, and under 13KV, bump 20,000 times is without punch-through.
Embodiment 4
(1) barium titanate 9 parts, calcium zirconate 4 parts, magnesium titanate 5 parts, titanium dioxide 6 parts, calcium titanate 4 parts, 3 parts, zirconic acid aluminium, strontium zirconate 5 parts is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 15:1, Ball-milling Time is 6h, and drum's speed of rotation is 110r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 30min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 40MPa, and the press time is 5h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1010 DEG C, and sintering time is 2h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
The compressive strength of the recombiner condenser stupalith of embodiment 4 is 18KV/mm, and under 13KV, bump 20,000 times is without punch-through.
Embodiment 5
(1) barium titanate 7 parts, calcium zirconate 6 parts, magnesium titanate 4 parts, titanium dioxide 8 parts, calcium titanate 5 parts, 4 parts, zirconic acid aluminium, strontium zirconate 5 parts is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 20:1, Ball-milling Time is 4h, and drum's speed of rotation is 130r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 30min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 55MPa, and the press time is 4h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1060 DEG C, and sintering time is 4h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
The compressive strength of the recombiner condenser stupalith of embodiment 5 is 19KV/mm, and under 15KV, bump 20,000 times is without punch-through.
Comparative example 1
(1) barium titanate 4 parts, calcium zirconate 8 parts, magnesium titanate 2 parts, titanium dioxide 10 parts, strontium zirconate 3 parts is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 15:1, and Ball-milling Time is 6h, and drum's speed of rotation is 110r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 30min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 40MPa, and the press time is 5h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1010 DEG C, and sintering time is 2h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
The compressive strength of the recombiner condenser stupalith of comparative example 1 is 13KV/mm, and under 10KV, bump 20,000 times is without punch-through.
Comparative example 2
(1) get respectively by weight barium titanate 4 parts, calcium zirconate 8 parts, titanium dioxide 10 parts, calcium titanate 3 parts, 6 parts, zirconic acid aluminium, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 15:1, and Ball-milling Time is 6h, and drum's speed of rotation is 110r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 30min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 40MPa, and the press time is 5h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1010 DEG C, and sintering time is 2h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
The compressive strength of the recombiner condenser stupalith of comparative example 2 is 12KV/mm, and under 9KV, bump 20,000 times is without punch-through.
Claims (7)
1. a barium phthalate base recombiner condenser stupalith, is characterized in that, described recombiner condenser stupalith comprises the composition of following weight parts:
Barium titanate 4-10 part,
Calcium zirconate 3-8 part,
Magnesium titanate 2-6 part,
Titanium dioxide 4-10 part,
Calcium titanate 3-7 part,
Zirconic acid aluminium 2-6 part,
Strontium zirconate 3-6 part.
2. a kind of barium phthalate base recombiner condenser stupalith according to claim 1, is characterized in that, described recombiner condenser stupalith comprises the composition of following weight parts:
Barium titanate 5-9 part,
Calcium zirconate 4-7 part,
Magnesium titanate 3-5 part,
Titanium dioxide 6-9 part,
Calcium titanate 4-6 part,
Zirconic acid aluminium 3-5 part,
Strontium zirconate 4-5 part.
3. a preparation method for barium phthalate base recombiner condenser stupalith, is characterized in that, described preparation method comprises the steps:
(1) barium titanate 4-10 part, calcium zirconate 3-8 part, magnesium titanate 2-6 part, titanium dioxide 4-10 part, calcium titanate 3-7 part, zirconic acid aluminium 2-6 part, strontium zirconate 3-6 part is got by weight respectively, above-mentioned various stupalith compositions are carried out ball milling respectively in ball mill, in ball mill, ratio of grinding media to material is 15:1-25:1, Ball-milling Time is 3-6h, and drum's speed of rotation is 110-150r/min;
(2) ceramic powder that step (1) obtains is uniformly mixed, then adds polyvinyl alcohol continuation stirring 30-60min;
(3) again the powdered material of step (2) is suppressed into base substrate, pressurization pressure is 40-70MPa, and the press time is 3-5h;
(4) by base substrate high temperature sintering in high temperature sintering furnace of step (3), high temperature sintering temperature is 1010-1130 DEG C, and sintering time is 2-5h, and after sintering, cooling, is barium phthalate base recombiner condenser stupalith.
4. the preparation method of a kind of barium phthalate base recombiner condenser stupalith according to claim 3, is characterized in that, in described step (1), in ball mill, ratio of grinding media to material is 20:1.
5. the preparation method of a kind of barium phthalate base recombiner condenser stupalith according to claim 3, is characterized in that, in described step (3), pressurization pressure is 55MPa, and the press time is 4h.
6. the preparation method of a kind of barium phthalate base recombiner condenser stupalith according to claim 3, is characterized in that, in described step (4), high temperature sintering temperature is 1060 DEG C.
7. the preparation method of a kind of barium phthalate base recombiner condenser stupalith according to claim 3, is characterized in that, in described step (4), sintering time is 4h.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107140973A (en) * | 2017-05-19 | 2017-09-08 | 合肥尚强电气科技有限公司 | High-pressure ceramic material and preparation method thereof |
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| CN102030528A (en) * | 2009-09-29 | 2011-04-27 | 无锡隆傲电子有限公司 | Dielectric ceramic material with high-temperature stability and preparation method thereof |
| CN102120702A (en) * | 2010-12-24 | 2011-07-13 | 钱云春 | Impact-resistant strontium zirconate-based high-voltage ceramic capacitor material |
| CN102627456A (en) * | 2012-04-23 | 2012-08-08 | 江苏大学 | Low-loss high-voltage ceramic capacitor dielectric |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030528A (en) * | 2009-09-29 | 2011-04-27 | 无锡隆傲电子有限公司 | Dielectric ceramic material with high-temperature stability and preparation method thereof |
| CN102120702A (en) * | 2010-12-24 | 2011-07-13 | 钱云春 | Impact-resistant strontium zirconate-based high-voltage ceramic capacitor material |
| CN102627456A (en) * | 2012-04-23 | 2012-08-08 | 江苏大学 | Low-loss high-voltage ceramic capacitor dielectric |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107140973A (en) * | 2017-05-19 | 2017-09-08 | 合肥尚强电气科技有限公司 | High-pressure ceramic material and preparation method thereof |
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