CN1566020A - Temperature compensation type ceramic combination, sintering auxiliary agent system and laminated ceramic assembly - Google Patents
Temperature compensation type ceramic combination, sintering auxiliary agent system and laminated ceramic assembly Download PDFInfo
- Publication number
- CN1566020A CN1566020A CN 03146617 CN03146617A CN1566020A CN 1566020 A CN1566020 A CN 1566020A CN 03146617 CN03146617 CN 03146617 CN 03146617 A CN03146617 A CN 03146617A CN 1566020 A CN1566020 A CN 1566020A
- Authority
- CN
- China
- Prior art keywords
- weight
- oxide
- formula
- mole
- sintering aid
- 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
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to a temperature compensation type ceramic composition for super cryogenic temperature co-combustion of silver electrode, which comprises a primary ceramic material system represented by formula (I) and a sintering aid material system represented by formula (II), wherein the main ceramic material system represented by formula (I) comprises 10-30 mol% of barium oxide, 10-30 mol% of neodymium oxide, 0-20 mol% of samarium oxide, 40-70 mol% of titanium dioxide, the content of the sintering aid material system represented by formula (II) is 5-40 mol% and comprises 1-5 wt% of magnesium oxide, 1-5 wt% of copper oxide, 5-30 wt% of zinc oxide, 20-60 wt% of bismuth oxide, 5-10 wt% of aluminium oxide, and 1-20 wt% of boron oxide. The invention also relates to a sintering aid system and a laminated ceramic assembly.
Description
Technical field
The present invention relates to a kind of contained sintering aid system of temperature compensating type ceramic composition, said composition of burning altogether of being used for fine silver electrode very low temperature, and the laminated ceramic assembly that makes by said composition.
Background technology
The specific inductivity height that general ceramic component (for example electrical condenser) is formed according to its stupalith can be divided into three classes: high-k type (Hi-K), medium dielectric constant microwave medium type (Mid-K) and temperature compensating type (TC).The specific inductivity of high-k type can reach 4000 to 15000, and its value is unsteady state along with temperature variation usually.The specific inductivity of medium dielectric constant microwave medium type is about 1400 to 2200, and its dielectric constant with temperature variation is nonlinearities change.The specific inductivity of temperature compensating type is about 10 to 90, and its dielectric constant with temperature changes minimum, and is linear change.
The interior electrode and the ceramic dielectric layers of laminated ceramic assembly (for example electrical condenser) must be burnt together altogether, so the stupalith of monolithic ceramic capacitor composition can generally be divided into high temperature sintering system and low-temperature sintering system according to sintering temperature.The sintering temperature of high temperature sintering system is about 1250 ℃ to 1300 ℃, because of its sintering temperature higher, so electrode generally need adopt higher and expensive palladium (Pd) metal of fusing point in it.The low-temperature sintering system since sintering temperature below 1150 ℃, so its interior electrode can adopt low price, the higher silver palladium alloy (Ag/Pd) of silver content reduces cost.
TDK stupalith system is (Ca, Sr) (Zr, Ti) O
3, it uses nickel as interior electrode, with copper as outer electrode.TDK belongs to the base metal processing procedure, because its main composition is CaZrO
3, help sintering by adding strontium, the effect of titanium is to help the adjustment of dielectric temperature coefficient.Sintering temperature is about 1200 to 1300 ℃, and k is lower for its specific inductivity, is 30.TDK stupalith system must carry out sintering under reducing atmosphere, to avoid the nickel electrode oxidation, its manufacturing cost is higher.In addition, this system uses specific inductivity to be about 30 material, and it is higher to consume material quantity, the material cost height.
Murata stupalith system is (BaNdLa)
xTiO
3, it uses palladium as interior electrode, with the outer electrode of silver as product.System of Murata stupalith system adopts Ba (NdLa
x) TiO
3System, its sintering temperature be up to 1400 ℃, thus with palladium as interior electrode, yet metallic palladium costs an arm and a leg.
Philips (PHILIPS) stupalith system is Ba (NdSm)
2Ti
5O
14, it uses silver/palladium (70/30) alloy as interior electrode, and with silver as external terminal electrode.Philips (PHILIPS) stupalith system adopts Ba (NdSm)
2Ti
5O
14+ 2%ZST glass+B
2O
3, its sintering temperature is about 1050 ℃, because sintering temperature is higher, so adopt silver/palladium as interior electrode.Because this system must adopt 20 to 30% palladium, its cost is also high.
In view of this, industry is needed the temperature compensating type ceramic composition and the sintering aid system of burning altogether with fine silver electrode very low temperature of being used for that can reduce metal cost and sintering temperature badly.
Summary of the invention
The present invention relates to be used for 100% fine silver in the temperature compensating type ceramic composition that burns altogether of electrode very low temperature.
The present invention relates to reduce sintering temperature to silver point and can in air atmosphere, carry out agglomerating and be used for the temperature compensating type ceramic composition that burns altogether with fine silver electrode very low temperature.
The invention still further relates to the sintering aid system.
The present invention relates to the laminated ceramic assembly again, and it is made by the temperature compensating type ceramic composition that is used for burning altogether with fine silver electrode very low temperature.
Detailed Description Of The Invention
The present invention relates to a kind of temperature compensating type ceramic composition of burning altogether with fine silver electrode very low temperature of being used for, it comprises by formula (I) Ba
w(Nd
xSm
y)
2Ti
zO
W+3x+3y+3zSintering aid material system shown in the main stupalith system of representative and formula (II) (Zn, Si, Cu, Al, Mg, Ba, Bi, the B) O.
Very low temperature is meant and can carries out sintering under the temperature that is lower than silver point (961 ℃).
Formula (I) Ba
w(Nd
xSm
y)
2Ti
zO
W+3x+3y+3zIt is the barium oxide that basic raw material provided that the main stupalith system of representative comprises with the barium carbonate, with the neodymium carbonate is the Neodymium trioxide that basic raw material provided, with the samarium sesquioxide is the Samarium trioxide that basic raw material provided, and is the titanium oxide that basic raw material provided with titanium dioxide.In the formula (I), 0.1≤w≤0.3 (barium oxide of 10-30 mole %), 0.1≤x≤0.3 (Neodymium trioxide of 10-30 mole %), 0≤y≤0.2 (Samarium trioxide of 0-20 mole %) and 0.4≤z≤0.7 (titanium dioxide of 40-70 mole %).
With (BaNd
2) Ti
2O
14Material is an example, and its specific inductivity (K) is 90, temperature factor (Tc) is+and 93ppm/ ℃, can make its densification in 1300 ℃ of sintering.Then, can adjust its dielectric-temperature curve, make it meet the NPO specification by adding Samarium trioxide.The NPO specification refers to that the capacitance temperature factor [(1/C) (Δ C/T)] of electrical condenser between-55 ℃ to 125 ℃ is ± 30ppm/ ℃.
The preparation method of the main stupalith system of formula (I) representative is as follows: barium carbonate, Neodymium trioxide, Samarium trioxide and the titanium dioxide of getting desired number, Yu Shuizhong mixed 3 hours, dry back was in 1000 ℃ of following sintering 4 hours, put into the cylinder that includes 2 millimeters zirconia balls again, adding water ground through 10 to 15 hours, the particle diameter of ceramic powder is reduced to 0.5 ± 0.1 micron, dried again.
In the sintering aid material system of formula (II) (Zn, Si, Cu, Al, Mg, Ba, Bi, B) O representative, its each component content ratio is: the silicon-dioxide of the bismuth oxide of the cupric oxide of the magnesium oxide of 1-5 weight %, 1-5 weight %, the zinc oxide of 5-30 weight %, 20-60 weight %, the aluminum oxide of 5-10 weight %, 5-15 weight %, the barium oxide of 10-30 weight % and the boron oxide of 1-5 weight %.
Adding magnesium oxide is in order to improve factor of merit (Q); Adding aluminum oxide is in order to improve physical strength and resistance to corrosion; Adding cupric oxide is in order to adjust temperature curve and to improve factor of merit (Q); Adding bismuth oxide is in order to help sintering and to improve specific inductivity (K); Adding boron oxide is in order to adjust temperature factor; Add ZnO-SiO
2-BaO glass system is in order to help sintering, to reduce sintering temperature.
Being prepared as follows of sintering aid material system: magnesium oxide, aluminum oxide, cupric oxide, bismuth oxide, boron oxide, zirconium white, silicon-dioxide and the barium oxide of desired number are added in the entry, mixed 3 hours.After the drying,, utilize 2 millimeters zirconia balls to be ground again, make its particle diameter reduce to 0.5 ± 0.1 micron, then with its oven dry in 500 ℃ of following sintering 4 hours.
The invention still further relates to a kind of laminated ceramic assembly, this assembly uses above-mentioned formula (I) Ba
w(Nd
xSm
y)
2Ti
zO
W+3x+3y+3zThe main stupalith system of representative and formula (II) (Zn, Si, Cu, Al, Mg, Ba, Bi, B) material system of sintering aid shown in the O is as the preparation material, the proportion relation of the sintering aid material system of the main stupalith system of formula (I) representative and formula (II) representative is: the barium oxide of 10-30 mole %, the Neodymium trioxide of 10-30 mole %, the sintering aid material system of the titanium dioxide of the Samarium trioxide of 0-20 mole % and 40-70 mole % and 5 to 40 weight %, the sintering aid material system then comprises the magnesium oxide of 1-5 weight %, the cupric oxide of 1-5 weight %, the zinc oxide of 5-30 weight %, the bismuth oxide of 20-60 weight %, the aluminum oxide of 5-10 weight %, the silicon-dioxide of 5-15 weight %, the boron oxide of the barium oxide of 10-30 weight % and 1-5 weight %.
The example of laminated ceramic assembly comprises electrical condenser, inducer, varistor and driving mechanism etc.The preparation method of laminated ceramic assembly comprises following steps: mix an amount of main stupalith system and sintering aid system, Yu Shuizhong mixed after 3 hours, added polyvinyl alcohol, triethylene butanols (TEG) fluidizer, lubricant and defoamer again.After brute force stirs, give vacuum defoamation.Use scraper, shaper to prepare 20 micron films, utilize printing press that fine silver cream is printed to film again, dried.Then together, under 30 tons pressure and 100 ℃, carry out hot-pressing processing, be cut into 1206 sizes with knife again stacks of thin films.Then heat-treat, at first remove down tackiness agents at 300 ℃, then under 900 ± 20 ℃ in air sintering 2 to 4 hours.At last, the dipping silver paste is used as end electrode in two ends, makes product again via plating.
The main character of obtained laminated ceramic assembly comprises factor of merit (Q), specific inductivity (K) and temperature factor electrical equipment character and density such as (TCC).Test condition is test frequency 1MHz, test voltage 1V.The preferred factor of merit of laminated ceramic assembly is greater than 1500 (1MHz); Preferred specific inductivity is greater than 60 (1MHz), more preferably greater than 75 (1MHz); Preferred temperature factor is less than ± 15ppm/C.Preferred density is greater than 5.2 (gram/cubic centimetres).
For the ease of further understanding the present invention, be described in more detail with reference to the following example, but the present invention is not subjected to the restriction of embodiment, its four corner such as claim limit.
Embodiment 1 to 14
With the mixed oxidization of proportion of composing shown in the table 1 barium, Neodymium trioxide, Samarium trioxide and titanium oxide, Yu Shuizhong mixed 3 hours, dry back was in 1000 ℃ of following sintering 4 hours, put into the cylinder that includes 2 millimeters zirconia balls again, adding water ground through 10 to 15 hours, the particle diameter of ceramic powder is reduced to 0.5 ± 0.1 micron, dried again, make main stupalith system.According to ratio shown in the table 1 with main stupalith system and sintering aid system add mix 3 hours in the entry after, add polyvinyl alcohol, triethylene butanols fluidizer, lubricant and defoamer again, after brute force stirs, give vacuum defoamation.Utilize scraper, shaper to prepare 20 micron films, utilize printing press that fine silver cream is printed to film again, dried.Then together, under 30 tons of pressure and 100 ℃, carry out hot-pressing processing, be cut into 1206 sizes with knife again stacks of thin films.Then heat-treat, at first remove down tackiness agents at 300 ℃, then under 930 ℃ in air sintering 2 hours.At last, the dipping silver paste is used as end electrode in two ends, makes the laminated ceramic subassembly product again via plating.
Embodiment 15 to 27
Make main stupalith system and sintering aid system with the method that is same as embodiment 1 to 14 by proportion of composing shown in the table 2, then make the laminated ceramic assembly.It is a sintering aid system of mixing 20 weight % with the main stupalith system (titanium oxide of the Samarium trioxide of the Neodymium trioxide of the barium oxide of 15 moles of %, 20 moles of %, 10 moles of % and 55 moles of %) of 80 weight %.
The temperature compensating type ceramic composition that is used for burning altogether with fine silver electrode very low temperature that the present invention applied for can be in being low to moderate under the following temperature of silver point (961 ℃), in air atmosphere, carry out sintering, because do not need to use expensive metals such as palladium as electrode materials, need in nitrogen, not carry out sintering yet, can significantly reduce cost.
By above narration, those skilled in the art can learn key character of the present invention easily, under the situation that does not depart from its spirit and scope, can carry out various changes and revise to adapt to various uses and situation the present invention.Therefore, other specific embodiment also within the scope of the claims.
Table 1
| Main stupalith | Sintering aid | Assembly character | |||||||
| ?????????Ba w(Nd x?Sm y) 2Ti 2O w+3x+3y+2z | (Mg, Al, Si, Cu, Zn, Ba, Bi, B) O glass | ||||||||
| Embodiment | W (BaO mole %) | ??X(Nd 2O 3Mole %) | ??Y(Sm 2O 3Mole %) | ??Z(TiO 2Mole %) | Weight % | ??K(1MHz) | ??Q(1MHz) | TCC(ppm/C) | Density (g/cm 3) |
| ????1 | ????0 | ????33 | ????0 | ????66 | ????20 | ????30 | ????325 | ????-115 | ????5.2 |
| ????2 | ????0 | ????20 | ????10 | ????70 | ????20 | ????45 | ????500 | ????-95 | ????4.9 |
| ????3 | ????30 | ????20 | ????10 | ????40 | ????20 | ????65 | ????625 | ????-250 | ????5.2 |
| ????4 | ????15 | ????10 | ????20 | ????55 | ????20 | ????75 | ????2100 | ????0 | ????5.6 |
| ????5 | ????10 | ????10 | ????20 | ????60 | ????20 | ????72 | ????825 | ????55 | ????5.5 |
| ????6 | ????15 | ????30 | ????0 | ????55 | ????20 | ????88 | ????1900 | ????-315 | ????5.6 |
| ????7 | ????15 | ????0 | ????30 | ????55 | ????20 | ????55 | ????1600 | ????15 | ????5.6 |
| ????8 | ????15 | ????10 | ????10 | ????55 | ????20 | ????80 | ????2000 | ????10 | ????5.6 |
| ????9 | ????15 | ????20 | ????10 | ????55 | ????20 | ????85 | ????1500 | ????-10 | ????5.6 |
| ????10 | ????15 | ????20 | ????10 | ????55 | ????0 | ????42 | ????125 | ????-365 | ????4.1 |
| ????11 | ????15 | ????20 | ????10 | ????55 | ????10 | ????55 | ????524 | ????-250 | ????4.9 |
| ????12 | ????15 | ????20 | ????10 | ????55 | ????30 | ????75 | ????1100 | ????-105 | ????5.5 |
| ????13 | ????20 | ????20 | ????10 | ????55 | ????20 | ????75 | ????1800 | ????-5 | ????5.6 |
| ????14 | ????15 | ????20 | ????10 | ????55 | ????40 | ????60 | ????650 | ????-276 | ????5.3 |
Table 2
| Sintering aid | Form | Assembly character | ||||||||||
| MgO (weight %) | ??Al 2O 3(weight %) | CuO (weight %) | ??SiO 2(weight %) | ZnO (weight %) | ???BaCO 3(weight %) | ??Bi 2O 3(weight %) | ??B 2O 3(weight %) | ???K (1MHz) | ??Q (1MHz) | ??TCC (ppm/C) | Density (g/cm 3) | |
| ????15 | ????0 | ????5 | ????1 | ????12.5 | ????15 | ????14 | ????50 | ????2.5 | ????81 | ????650 | ????35 | ????5.0 |
| ????16 | ????5 | ????5 | ????1 | ????12 | ????15 | ????14 | ????45 | ????2.5 | ????78 | ????1800 | ????-85 | ????5.5 |
| ????17 | ????3 | ????0 | ????3 | ????12.5 | ????15 | ????14 | ????50 | ????2.5 | ????72 | ????900 | ????55 | ????4.9 |
| ????18 | ????2 | ????5 | ????1 | ????12 | ????15 | ????14 | ????49.5 | ????2.5 | ????55 | ????325 | ????325 | ????4.6 |
| ????19 | ????3 | ????6 | ????3 | ????12 | ????15 | ????14 | ????47 | ????2.5 | ????82 | ????1585 | ????-15 | ????5.6 |
| ????20 | ????2 | ????6 | ????3 | ????0 | ????15 | ????14 | ????57.5 | ????2.5 | ????72 | ????1100 | ????-60 | ????5.3 |
| ????21 | ????3 | ????6 | ????2 | ????12 | ????15 | ????14 | ????50 | ????2 | ????80 | ????1600 | ????10 | ????5.6 |
| ????22 | ????2 | ????6 | ????3 | ????12 | ????5 | ????14 | ????57 | ????1 | ????45 | ????250 | ????-430 | ????4.7 |
| ????23 | ????2 | ????6 | ????3 | ????12 | ????15 | ????30 | ????27 | ????5 | ????55 | ????350 | ????115 | ????4.9 |
| ????24 | ????2 | ????5 | ????3 | ????12 | ????13 | ????15 | ????50 | ????3 | ????85 | ????1850 | ????65 | ????5.6 |
| ????25 | ????3 | ????5 | ????2 | ????10 | ????20 | ????10 | ????48 | ????2 | ????82 | ????1780 | ????-10 | ????5.6 |
| ????26 | ????4 | ????7 | ????3 | ????10 | ????15 | ????14 | ????50 | ????1.5 | ????80 | ????2000 | ????0 | ????5.6 |
| ????27 | ????10 | ????5 | ????10 | ????5 | ????10 | ????10 | ????20 | ????0 | ????45 | ????350 | ????-205 | ????4.7 |
Claims (4)
1. one kind is used for the temperature compensating type ceramic composition that burns altogether with fine silver electrode very low temperature, and it comprises formula (I) Ba
w(Nd
xSm
y)
2Ti
zO
W+3x+3y+3zThe main stupalith system of representative and formula (II) (Zn, Si, Cu, Al, Mg, Ba, Bi, B) the sintering aid material system of O representative, the main stupalith system of its Chinese style (I) representative comprises: the barium oxide of 10-30 mole % (0.1≤w≤0.3), the Neodymium trioxide of 10-30 mole % (0.1≤x≤0.3), the titanium dioxide (0.4≤z≤0.7) of the Samarium trioxide of 0-20 mole % (0≤y≤0.2) and 40-70 mole %, the content of the sintering aid material system of formula (II) representative is 5-40 mole %, and the sintering aid material system of its Chinese style (II) representative comprises: the magnesium oxide of 1-5 weight %, the cupric oxide of 1-5 weight %, the zinc oxide of 5-30 weight %, the bismuth oxide of 20-60 weight %, the aluminum oxide of 5-10 weight %, the silicon-dioxide of 5-15 weight %, the boron oxide of the barium oxide of 10-30 weight % and 1-5 weight %.
2. sintering aid material system, suc as formula (II) (Zn, Si, Cu, Al, Mg, Ba, Bi, B) O representative, it comprises: the silicon-dioxide of the bismuth oxide of the cupric oxide of the magnesium oxide of 1-5 weight %, 1-5 weight %, the zinc oxide of 5-30 weight %, 20-60 weight %, the aluminum oxide of 5-10 weight %, 5-15 weight %, the barium oxide of 10-30 weight % and the boron oxide of 1-5 weight %.
3. laminated ceramic assembly, this assembly uses formula (I) Ba
w(Nd
xSm
y)
2Ti
zO
W+3x+3y+3zThe main stupalith system of representative and formula (II) (Zn, Si, Cu, Al, Mg, Ba, Bi, B) material system of sintering aid shown in the O makes as the preparation material, the proportion relation of the sintering aid material system of the main stupalith system of formula (I) representative and formula (II) representative is: the barium oxide of 10-30 mole %, the Neodymium trioxide of 10-30 mole %, the sintering aid material system of the titanium dioxide of the Samarium trioxide of 0-20 mole % and 40-70 mole % and 5-40 mole %, the sintering aid material system comprises: the magnesium oxide of 1-5 weight %, the cupric oxide of 1-5 weight %, the zinc oxide of 5-30 weight %, the bismuth oxide of 20-60 weight %, the aluminum oxide of 5-10 weight %, the silicon-dioxide of 5-15 weight %, the boron oxide of the barium oxide of 10-30 weight % and 1-5 weight %.
4. according to the laminated ceramic assembly of claim 3, it is an electrical condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146617 CN1566020A (en) | 2003-07-08 | 2003-07-08 | Temperature compensation type ceramic combination, sintering auxiliary agent system and laminated ceramic assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146617 CN1566020A (en) | 2003-07-08 | 2003-07-08 | Temperature compensation type ceramic combination, sintering auxiliary agent system and laminated ceramic assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1566020A true CN1566020A (en) | 2005-01-19 |
Family
ID=34471805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03146617 Pending CN1566020A (en) | 2003-07-08 | 2003-07-08 | Temperature compensation type ceramic combination, sintering auxiliary agent system and laminated ceramic assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1566020A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029286A1 (en) * | 2009-09-10 | 2011-03-17 | 中国矿业大学(北京) | Composite sintering agent and method for preparing nano crystalline ceramics at low temperature using the same |
| CN102863221A (en) * | 2012-09-20 | 2013-01-09 | 广东风华高新科技股份有限公司 | Method, sintering aid and materials for preparation of low-temperature cofired medium ceramic and application |
| CN102875159A (en) * | 2012-09-20 | 2013-01-16 | 广东风华高新科技股份有限公司 | Method for preparing low-temperature cofired dielectric ceramic and material and sintering aid of low-temperature cofired dielectric ceramic |
| CN102030524B (en) * | 2009-09-25 | 2013-02-13 | 北京有色金属研究总院 | Solid-state pulse forming line energy storage dielectric material and preparation method thereof |
| CN106365655A (en) * | 2016-08-31 | 2017-02-01 | 长兴盛华耐火材料有限公司 | High-strength lightweight refractory material and preparation method thereof |
| CN116462496A (en) * | 2023-05-08 | 2023-07-21 | 苏州市职业大学（苏州开放大学） | Preparation method and product of dielectric ceramic |
-
2003
- 2003-07-08 CN CN 03146617 patent/CN1566020A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011029286A1 (en) * | 2009-09-10 | 2011-03-17 | 中国矿业大学(北京) | Composite sintering agent and method for preparing nano crystalline ceramics at low temperature using the same |
| CN102030524B (en) * | 2009-09-25 | 2013-02-13 | 北京有色金属研究总院 | Solid-state pulse forming line energy storage dielectric material and preparation method thereof |
| CN102863221A (en) * | 2012-09-20 | 2013-01-09 | 广东风华高新科技股份有限公司 | Method, sintering aid and materials for preparation of low-temperature cofired medium ceramic and application |
| CN102875159A (en) * | 2012-09-20 | 2013-01-16 | 广东风华高新科技股份有限公司 | Method for preparing low-temperature cofired dielectric ceramic and material and sintering aid of low-temperature cofired dielectric ceramic |
| CN106365655A (en) * | 2016-08-31 | 2017-02-01 | 长兴盛华耐火材料有限公司 | High-strength lightweight refractory material and preparation method thereof |
| CN116462496A (en) * | 2023-05-08 | 2023-07-21 | 苏州市职业大学（苏州开放大学） | Preparation method and product of dielectric ceramic |
| CN116462496B (en) * | 2023-05-08 | 2024-02-27 | 苏州市职业大学（苏州开放大学） | Preparation method and product of dielectric ceramic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1252755C (en) | Dielectric material for thermostable laminated ceramic capacitor with basic-metal inner electrode | |
| US7541306B2 (en) | X8R dielectric composition for use with nickel electrodes | |
| CN1167082C (en) | Dielectric ceramic composition and monolithic ceramic capacitor | |
| CN1085636C (en) | Dielectric ceramic composition and monolithic ceramic capacitor using same | |
| US8305731B2 (en) | Lead and cadmium free, low temperature fired X7R dielectric ceramic composition and method of making | |
| CN1085635C (en) | Dielectric ceramic composition and monolithic ceramic capacitor using same | |
| US7230817B2 (en) | Y5V dielectric composition | |
| EP0410406A2 (en) | Process of making a multilayer capacitor using a thick film conductor composition | |
| CN1090375C (en) | Monolithic ceramic capacitor and production method thereof | |
| WO2004103930A1 (en) | X7r dielectric composition | |
| WO2008108897A1 (en) | Ultra low temperature fired x7r and bx dielectric ceramic composition and method of making | |
| US8114801B2 (en) | COG dieletric composition for use with nickel electrodes | |
| EP0737655A1 (en) | Non-reduced dielectric ceramic compositions | |
| KR20010040281A (en) | Non-reducible Di electric Ceramic Material, Making Method, and Multilayer Ceramic Capacitor | |
| KR20100014318A (en) | X8r dielectric composition for use with nickel electrodes | |
| US4535064A (en) | Ceramic compositions for a reduction-reoxidation type semiconducting capacitor | |
| CN1566020A (en) | Temperature compensation type ceramic combination, sintering auxiliary agent system and laminated ceramic assembly | |
| CN1619726A (en) | Medium low temperature sintered high voltage ceramic capacitor medium | |
| CN111646792B (en) | BME multilayer ceramic capacitor, BME ceramic dielectric capacitor ceramic material and preparation method | |
| KR20080048493A (en) | Cog dielectric composition for use with nickel electrodes | |
| KR102024028B1 (en) | OJ dielectric composition used for nickel electrode | |
| US20050095464A1 (en) | Ultralow firing temperature compensating ceramic composition for pure silver electrode, sintering flux and laminated ceramic element obtained therefrom | |
| CN1635593A (en) | Zinc-magnesium titanate system ceramic dielectric material and prepared ceramic capacitor | |
| CN1634798A (en) | Unreduced thermal compensation ceramic medium materials and ceramic capacitor made thereof | |
| KR20180115373A (en) | Method of dielectric ceramic composition for mlcc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |