CN107721417A - A kind of barium zirconium phthalate dielectric substance with high energy storage density and preparation method thereof - Google Patents
A kind of barium zirconium phthalate dielectric substance with high energy storage density and preparation method thereof Download PDFInfo
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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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Abstract
The invention discloses a kind of barium zirconium phthalate dielectric substance with high energy storage density and preparation method thereof, its chemical formula is:Ba1‑xSmx(Zr0.2Ti0.8)O3, wherein x=0.001~0.006.First by BaCO3、Sm2O3、TiO2、ZrO2Stoichiometrically formula carries out dispensing, and after ball milling, drying, sieving, then at 1000~1150 DEG C of pre-burnings, then through secondary ball milling, compressing is base substrate, and barium zirconium phthalate dielectric substance is made in 1210 DEG C~1310 DEG C sintering in base substrate.The present invention has higher energy storage density (0.75~1.15J/cm3) and moderate sintering temperature (1210 DEG C~1310 DEG C).
Description
Technical field
The present invention is on electronic information material and component, more particularly to a kind of zirconium metatitanic acid with high energy storage density
Barium dielectric substance and preparation method thereof
Background technology
Medium energy storage material has a very wide range of application in material and energy field.It is dynamic available for mixing at civilian aspect
Power automobile, Large-Scale Interconnected electric power system stability control and new energy resources system；Militarily, as pulse power main part
Therefore high pulse power source, available for tank, magnetic artillery, directed energy weapon, synthesis electrical method naval vessels and controlled laser nuclear fusion etc..
The development of current science and technology develops towards miniaturization, integrated and light-weighted direction, therefore develops with more high energy storage density
Dielectric material is the focus of current research.
BaTiO3A kind of dielectric substance with higher dielectric constant, due to excellent dielectric, piezoelectricity, absolutely
The performances such as edge and widely studied.Meanwhile BaTiO3And a kind of excellent MLCC matrix materials, so if wishing its tool
Have larger energy storage density, it is necessary to its dielectric constant and pressure voltage will be high, at the same require the dielectric constant linearity will height, i.e., its
It is small with the increase fall of electric-field intensity.But with the change of temperature, dielectric constant generally change is very big, in order to
Make Curie's peak stretching of dielectric constant, and ensure that influence of the change of its temperature to dielectric constant is little, typically by being adjusted to
Point, technique etc., change solid solution structure, so that Curie peak broadens.Barium zirconium phthalate Ba (ZrxTi1-x)O3(BZT) it is BaTiO3In
Zr4+Substitute part Ti4+The system solid solution formed afterwards, the BZT systems formed after Zr ions are adulterated with Zr ions dosages
Change, its Curie peak moves to left and broadening, in order to further improve its energy storage density, can use the rare earth doped element in A positions
Method further improves its energy-storage property.
The content of the invention
The purpose of the present invention, it is further to improve existing barium zirconium phthalate Ba (ZrxTi1-x)O3(BZT) dielectric substance
A kind of energy storage density, there is provided barium zirconium phthalate material with high energy storage density and preparation method thereof.
The present invention is achieved by following technical solution.
A kind of barium zirconium phthalate dielectric substance with high energy storage density, its chemical formula are:Ba1-xSmx(Zr0.2Ti0.8)O3,
Wherein x=0.001~0.006；
This has a preparation method of the barium zirconium phthalate dielectric substance of high energy storage density, and specific implementation step is as follows：
(1) respectively by BaCO3、Sm2O3、TiO2、ZrO2Stoichiometrically formula Ba1-xSmx(Zr0.2Ti0.8)O3, wherein x=
0.001~0.006 carries out dispensing, and powder is put into nylon tank, after adding absolute ethyl alcohol and zirconium ball, ball milling 4~8 hours；
(2) powder after step (1) ball milling is put into drying box, in 80~100 DEG C of drying, then crosses 40 mesh sieves；
(3) it is placed in after the powder after sieving being put into alumina crucible in moderate oven, in 1000~1150 DEG C of pre-burnings, insulation
3~7 hours；
(4) by the raw material after step (3) pre-burning, it is put into nylon tank, addition zirconia ball and absolute ethyl alcohol, ball milling 9~
16 hours, sieved after drying, then compressing with powder compressing machine is base substrate；
(5) base substrate of step (4) is incubated 2~8 hours, being made has higher energy storage in 1210 DEG C~1310 DEG C sintering
The barium zirconium phthalate dielectric substance of density.
The powder of the step (1) carries out ball milling using planetary ball mill, and drum's speed of rotation is 400 revs/min.
Step (1) Ba1-xSmx(Zr0.2Ti0.8)O3Middle Sm content is x=0.0025.
The briquetting pressure of step (4) powder compressing machine is 1~6MPa.
The sintering temperature of the step (5) is 1250 DEG C.
Ba produced by the present invention1-xSmx(Zr0.2Ti0.8)O3(x=0.001~0.006) material, have higher energy storage close
Spend (0.75~1.15J/cm3) and moderate sintering temperature (1210 DEG C~1310 DEG C).
Embodiment
The present invention is with BaCO3、Sm2O3、TiO2、ZrO2For initial feed, preparing one kind by solid phase method has higher energy storage
The dielectric material of density, specific embodiment are as follows：
Embodiment 1
1. by BaCO3、Sm2O3、TiO2、ZrO2Stoichiometrically formula (Ba0.9975Sm0.0025)(Zr0.2Ti0.8)O3Matched somebody with somebody
Material, matches and is：8.2173g BaCO3、0.018g Sm2O3、2.6681gTiO2, 1.0287gZrO2, by about 10g mixed powder
It is put into nylon tank, adds 200ml absolute ethyl alcohols, after adding 150g zirconium ball, ball milling 6 hours on planetary ball mill, turns
Speed is 400 revs/min；
2. the raw material after ball milling is placed in drying box, in 80 DEG C of drying, 40 mesh sieves are then crossed；
3. the powder after drying sieving is put into moderate oven, in 1050 DEG C of pre-burnings, 4 hours are incubated；
4. the powder after step 3 pre-burning is added into 0.5wt.%PVA to be mixed, it is put into ball grinder, adds zirconium oxide
Ball and absolute ethyl alcohol, ball milling 12 hours, sieve after drying, then are pressed into base substrate with powder compressing machine with 4MPa pressure；
5. green compact are sintered at 1250 DEG C, 4 hours are incubated, the zirconium with high energy storage density with high-k is made
Barium titanate dielectric material.
6. testing its ferroelectric hysteresis loop under 10Hz with aixACCT TF1000 ferroelectricities work stations, according to ferroelectric hysteresis loop, use
Following formula carries out the calculating of energy storage density：
Wherein, W1Represent energy storage density, PmaxRepresent maximum polarization, PrRemanent polarization is represented, E represents maximum electricity
.
7. according to above-mentioned formula and combining ferroelectric hysteresis loop calculating energy storage density, result of calculation is as follows：
X=0.0025, W1=1.15J/cm3。
Embodiment 2-8
Embodiment 2-8 is different Sm contents Ba1-xSmx(Zr0.2Ti0.8)O3, its calcined temperature, sintering temperature, sintering time
Table 1 is referred to dielectric properties, remaining preparation process is identical with embodiment 1.
Table 1
The invention is not limited in above-described embodiment, the change of many details is possible, but therefore this does not run counter to this
The scope and spirit of invention.
Claims (5)
1. a kind of barium zirconium phthalate dielectric substance with high energy storage density, its chemical formula are:Ba1-xSmx(Zr0.2Ti0.8)O3, its
Middle x=0.001~0.006.
This has a preparation method of the barium zirconium phthalate dielectric substance of high energy storage density, and specific implementation step is as follows：
(1) respectively by BaCO3、Sm2O3、TiO2、ZrO2Stoichiometrically formula Ba1-xSmx(Zr0.2Ti0.8)O3, wherein x=0.001~
0.006 carries out dispensing, and powder is put into nylon tank, after adding absolute ethyl alcohol and zirconium ball, ball milling 4~8 hours；
(2) powder after step (1) ball milling is put into drying box, in 80~100 DEG C of drying, then crosses 40 mesh sieves；
(3) it is placed in after the powder after sieving being put into alumina crucible in moderate oven, in 1000~1150 DEG C of pre-burnings, insulation 3~7
Hour；
(4) by the raw material after step (3) pre-burning, it is put into nylon tank, adds zirconia ball and absolute ethyl alcohol, ball milling 9~16 are small
When, sieved after drying, then compressing with powder compressing machine is base substrate；
(5) base substrate of step (4) is incubated 2~8 hours, be made with compared with high energy storage density in 1210 DEG C~1310 DEG C sintering
Barium zirconium phthalate dielectric substance.
A kind of 2. barium zirconium phthalate dielectric substance with high energy storage density according to claim 1, it is characterised in that institute
The powder for stating step (1) carries out ball milling using planetary ball mill, and drum's speed of rotation is 400 revs/min.
A kind of 3. barium zirconium phthalate dielectric substance with high energy storage density according to claim 1, it is characterised in that institute
State step (1) Ba1-xSmx(Zr0.2Ti0.8)O3Middle Sm content is x=0.0025.
A kind of 4. barium zirconium phthalate dielectric substance with high energy storage density according to claim 1, it is characterised in that institute
The briquetting pressure for stating step (4) powder compressing machine is 1~6MPa.
A kind of 5. barium zirconium phthalate dielectric substance with high energy storage density according to claim 1, it is characterised in that institute
The sintering temperature for stating step (5) is 1250 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133915A (en) * | 2018-08-30 | 2019-01-04 | 武汉理工大学 | A kind of high energy storage barium phthalate base dielectric material and preparation method thereof |
| CN109293353A (en) * | 2018-09-03 | 2019-02-01 | 中国科学院上海硅酸盐研究所 | A kind of unleaded BiFeO of high energy storage density and high energy storage efficiency3Base ferroelectric ceramic material and preparation method thereof |
| CN109694247A (en) * | 2019-01-08 | 2019-04-30 | 陕西科技大学 | A kind of linear dielectric ceramic material of efficient energy storage and preparation method thereof |
-
2017
- 2017-10-11 CN CN201710943293.0A patent/CN107721417A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133915A (en) * | 2018-08-30 | 2019-01-04 | 武汉理工大学 | A kind of high energy storage barium phthalate base dielectric material and preparation method thereof |
| CN109133915B (en) * | 2018-08-30 | 2021-11-16 | 武汉理工大学 | Barium titanate-based dielectric material with high energy storage capacity and preparation method thereof |
| CN109293353A (en) * | 2018-09-03 | 2019-02-01 | 中国科学院上海硅酸盐研究所 | A kind of unleaded BiFeO of high energy storage density and high energy storage efficiency3Base ferroelectric ceramic material and preparation method thereof |
| CN109293353B (en) * | 2018-09-03 | 2021-05-25 | 中国科学院上海硅酸盐研究所 | Lead-free BiFeO with high energy storage density and high energy storage efficiency3Ferroelectric ceramic material and its preparation method |
| CN109694247A (en) * | 2019-01-08 | 2019-04-30 | 陕西科技大学 | A kind of linear dielectric ceramic material of efficient energy storage and preparation method thereof |
| CN109694247B (en) * | 2019-01-08 | 2021-08-20 | 陕西科技大学 | High-efficiency energy-storage linear dielectric ceramic material and preparation method thereof |
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