CN101691297B - Ferrite/ceramic composite material and preparation method and application thereof - Google Patents
Ferrite/ceramic composite material and preparation method and application thereof Download PDFInfo
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- CN101691297B CN101691297B CN2009101905950A CN200910190595A CN101691297B CN 101691297 B CN101691297 B CN 101691297B CN 2009101905950 A CN2009101905950 A CN 2009101905950A CN 200910190595 A CN200910190595 A CN 200910190595A CN 101691297 B CN101691297 B CN 101691297B
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Abstract
The invention provides a ferrite/ceramic composite material, and a preparation method and application of the composite material. The composite material is a sintered body of NiCuZn ferrite and ceramics of a Zn2SiO4 series; the relative dielectric constant epsilonr of the composite material is less than or equal to 10, while an initial magnetic conductivity ranges from 5 to 25; the composite material and a metal electrode are co-fired at a temperature below 900 DEG C; and the composite material can be widely applied in the technical field of Low Temperature Co-Fired Ceramic (LTCC). Simultaneously, the invention also provides the preparation method for a ferrite/ceramic composition. The composition can be used as a raw material for preparing the ferrite/ceramic composite material and an electric element containing the ferrite/ceramic composite material. In addition, the invention also provides the application of the ferrite/ceramic composite material as a dielectric material in the aspect of the electric element.
Description
Technical field
The present invention relates to a kind of ferrite/sintered ceramic composite material, a kind of ferrite/ceramic mixture and the application of this ferrite/ceramic composite aspect electric material that is used to prepare this complex sintered material.The invention particularly relates to a kind of ferrite/ceramic composite that is applied to LTCC (LTCC) field, and feedstock composition.
Background technology
Laminated inductive and chip-type filter are a kind of important surface mount devices that development in recent years is got up; Be one of indispensable slice component of surface mounting technique of new generation, be widely used in communication, computer and fields such as peripheral product and household electrical appliance thereof.Laminated inductive and chip-type filter all are to adopt the LTCC technology that dielectric material and interior polar stack are burnt altogether to form, so the low-temperature sintering dielectric material is the basis that the LTCC technology realizes.
From present industrialization status; The dielectric material that laminated inductive is used mainly contains two types; One type is the NiCuZn ferrite below being applied to 300MHz; Another kind of is the low-k stupalith that is applied to the above uhf-range of 1GHz, and the stupalith of this low-k also is used for the preparation of chip-type filter.Therefore, with NiCuZn ferrite and the compound matrix material that obtains of low-k stupalith, can be used for the preparation of interior laminated inductive of 300MHz～1GHz super high band scope and chip-type filter.
Both at home and abroad to the research of NiCuZn ferrite composite material more be compound with ferroelectric material, the adding of ferroelectric material makes this matrix material have higher dielectric constant, and presents ferroelectricity and ferromegnetism simultaneously.Research about the low-k ferrite composite material is then less; Only research all is to concentrate on ferrite and specific inductivity lower " glass+pottery " based material compound; Can obtain the ferrite/ceramic composite of a kind of low-k low magnetic permeability (relative permittivity and initial permeability all are lower than 10); But adopt the chemical method preparation, cost is high, is not suitable for the industriallization volume production more.
Summary of the invention
The invention provides a kind of ferrite/ceramic composite.
The present invention simultaneously also provides the application as dielectric material aspect electrical element of a kind of ferrite/ceramic composite.
The present invention simultaneously also provides the preparation method of above-mentioned matrix material.
The present invention also provides a kind of preparation method of ferrite/ceramic composition in addition, the preparation raw material that said composition can be used as above-mentioned ferrite/ceramic composite and contains the electrical element of this ferrite/ceramic composite.
For realizing first goal of the invention of the present invention, ferrite/ceramic composite provided by the invention is specially: this matrix material is a sintered compact, is made up of following component:
NiCuZn ferrite 70～80 weight parts,
Zn
2SiO
4System's pottery 20～30 weight parts,
Bi
2O
33～6 weight parts;
Wherein component is constructed as follows in the component NiCuZn ferrite:
Ferriferous oxide 45%～50% (amount of substance) is with Fe
2O
3Meter,
Zinc oxide 10%～40% (amount of substance) is in ZnO,
Nickel oxide 5%～40% (amount of substance) is in NiO,
Copper oxide 5%～20% (amount of substance) is in CuO;
Component Zn wherein
2SiO
4Be that ceramic composition is constructed as follows:
Zn
2SiO
425%～60% (weight),
Zinc borosilicate glass 40%～75% (weight);
Wherein the component of component zinc borosilicate glass is constructed as follows:
Zinc oxide 30%～65% (amount of substance) is in ZnO,
Boron oxide compound 20%～60% (amount of substance) is with B
2O
3Meter,
Si oxide 5%～30% (amount of substance) is with SiO
2Meter.
For realizing second goal of the invention, the invention provides the application as dielectric material aspect electrical element of this ferrite/ceramic composite.Especially as the dielectric material in laminated inductive and the chip-type filter.
This ferrite/ceramic composite, the relative permittivity ε under the 100MHz frequency
r≤10, the initial permeability μ under the 1MHz frequency
iThe value scope is: 5≤μ
i≤25 (initial permeability μ
iDefinition is as follows: general provision processing exemplar is the annular closed magnetic circuit, and the magnetic permeability that swings excitation field intensity H → 0 o'clock is called initial permeability μ
i: μ
i=(1/ μ
0) * (Δ B/ Δ H) (H → 0) wherein, μ
0Be permeability of vacuum; B is an inducedmagnetic field intensity; H is an externally-applied magnetic field intensity.)。Shrinking percentage is 16%～18%, and (wherein shrinking percentage specifically is defined as: size before shrinking percentage=100% * (size behind the size-sintering before the sintering)/sintering).Other elements such as this ferrite/ceramic composite and metal electrode burn temperature altogether and are not higher than 900 ℃, can burn altogether with the Ag electrode, have broad application prospects.
For realizing the 3rd goal of the invention, this ferrite/ceramic composite can be used following prepared:
1) preparation NiCuZn ferrite: the raw material of preparing following amount of substance ratio: 45%～50% Fe
2O
3, 10%～40% ZnO, 5%～40% NiO, 5%～20% CuO, above-mentioned raw materials is processed as mixed powder F1, F1 was calcined 2～4 hours in 850 ℃～950 ℃ environment, be processed as mixed powder F then;
Preparation zinc silicate Zn
2SiO
4: prepare ZnO and SiO at 2: 1 in the amount of substance ratio
2, above-mentioned two kinds of materials are processed as mixed powder M1, get this mixed powder M1 and place 1100 ℃～1200 ℃ environment calcinings 2 hours～4 hours, get material M2, material M2 is processed as powder M;
Preparation zinc borosilicate glass ZnO-B
2O
3-SiO
2(being designated hereinafter simply as ZBS): the raw material of preparing following amount of substance ratio: 30%～65% ZnO, 20%～60% B
2O
3, 5%～30% SiO
2, above-mentioned raw materials is processed as powder N1, place 1100 ℃～1200 ℃ environment calcinings to found into liquid glass in 2 hours～4 hours powder N1, quench, obtain powder N after the pulverizing;
2) get the powder N of the powder M and 40%～70% (weight) of 25%～60% (weight), process mixed powder X1, place 650 ℃～750 ℃ environment calcinings to obtain material X2 in 1 hour～3 hours X1, X2 is processed as powder X-ray;
3) get the mixed powder F of 70～80 weight parts, the powder X-ray of 20～30 weight parts and the Bi of 3～6 weight parts
2O
3Process mixed powder Y1, add tackiness agent, granulation, moulding obtain Y2, and Y2 was placed 850 ℃～900 ℃ environment sintering 2 hours～4 hours, obtain said ferrite/ceramic composite, add Bi
2O
3Main purpose is for reducing sintering temperature.
Be processed as powder described in each step of above-mentioned technology or be processed as mixed powder and can adopt following technology: raw material is mixed in planetary ball mill with deionized water and zirconium post; Raw material ball is worn into uniform mixture; Mixture particle diameter≤2 μ m; Take out the product of ball milling being crossed behind the zirconium post and dry to water cut below 1%, furnace drying method can adopt the environment baking 3 hours～4 hours that product is placed 160 ℃.In this step; The zirconium post is the small column that zirconium white is processed, and zirconium white is that a kind of material and powder, deionized water of high firmness mixes by a certain percentage; Make zirconium post and powder collision through high speed rotating; Reach the purpose of all pressing mixing and refinement of powder, and then with the product oven dry, can subsequent use or use.The effect of oven dry is to remove moisture, makes the material weighing in the later step more accurate.
Tackiness agent can adopt polyvinyl alcohol water solution in the above-mentioned technology.
For realizing the 4th goal of the invention; The present invention also provides a kind of preparation method of ferrite/ceramic composition; The preparation raw material that the prepared ferrite/ceramic composition of this method can be used as above-mentioned ferrite/ceramic composite and contains the electrical element of this ferrite/ceramic composite, this preparation method may further comprise the steps:
1) preparation NiCuZn ferrite: the raw material of preparing following amount of substance ratio: 45%～50% Fe
2O
3, 10%～40% ZnO, 5%～40% NiO, 5%～20% CuO, above-mentioned raw materials is processed as mixed powder F1, F1 was calcined 2～4 hours in 850 ℃～950 ℃ environment, be processed as mixed powder F then;
Preparation zinc silicate Zn
2SiO
4: prepare ZnO and SiO at 2: 1 in the amount of substance ratio
2, above-mentioned two kinds of materials are processed as mixed powder M1, get this mixed powder M1 and place 1100 ℃～1200 ℃ environment calcinings 2 hours～4 hours, get material M2, material M2 is processed as powder M;
Preparation zinc borosilicate glass ZnO-B
2O
3-SiO
2(being designated hereinafter simply as ZBS): the raw material of preparing following amount of substance ratio: 30%～65% ZnO, 20%～60% B
2O
3, 5%～30% SiO
2, above-mentioned raw materials is processed as powder N1, place 1100 ℃～1200 ℃ environment calcinings to found into liquid glass in 2 hours～4 hours powder N1, quench, obtain powder N after the pulverizing;
2) get the powder N of the powder M and 40%～70% (weight) of 25%～60% (weight), process mixed powder X1, place 650 ℃～750 ℃ environment calcinings to obtain material X2 in 1 hour～3 hours X1, X2 is processed as powder X-ray;
3) get powder X-ray and the Bi of 3～6 weight part of mixed powder F, 20～30 weight parts of 70～80 weight parts
2O
3Process mixed powder, obtain said ferrite/ceramic composition, add Bi
2O
3Sintering temperature when main purpose is used for reducing said composition.
Be processed as powder described in each step of above-mentioned technology or be processed as mixed powder and can adopt following technology: raw material is carried out ball milling after in planetary ball mill, being mixed into uniform mixture with deionized water and zirconium post; Ball milling to raw material particle size≤2 μ m; Take the product of ball milling being crossed behind the zirconium post away and dry to water cut below 1%, furnace drying method can adopt the environment baking 3 hours～4 hours that product is placed 160 ℃.In this step; The zirconium post is the small column that zirconium white is processed, and zirconium white is that a kind of material and powder, deionized water of high firmness mixes by a certain percentage; Make zirconium post and powder collision through high speed rotating; Reach the purpose of all pressing mixing and refinement of powder, and then with the product oven dry, can subsequent use or use.The effect of oven dry is to remove moisture, makes the material weighing in the later step more accurate.
The present invention can overcome the shortcoming that the prior art ferrite/chemical method is all adopted in the ceramic composite preparation, cost is high, technology is wayward, be not suitable for suitability for industrialized production; The present invention has adopted industriallization volume production solid phase method commonly used, compares to chemical method and is easier to produce economic benefit.Ferrite/ceramic composite provided by the invention has relative permittivity ε
r≤10, initial permeability burns temperature altogether with metal electrode and is lower than 900 ℃ in 5～25 scopes, and two kinds of base material sintering coupling used in the present invention is good, helps the stable and higher production good article rate of quality product.
Description of drawings
Fig. 1 is preparation technology's general flow chart of ferrite/ceramic composite among the present invention;
Fig. 2 is preparation technology's general flow chart of ferrite/ceramic composition among the present invention.
Embodiment
Embodiment 1
1) the ferritic preparation of NiCuZn is by following prescription weighing Fe
2O
3, ZnO, NiO and CuO:Fe
2O
3: 48% (amount of substance); ZnO:18.7% (amount of substance); NiO:24% (amount of substance); CuO:9.3% (amount of substance) (, all selecting the analytical pure rank for use) at the specific embodiment part reagent raw material that uses like no specified otherwise.Above-mentioned raw materials is mixed back ball milling 3 hours in planetary ball mill with deionized water and zirconium post; Raw material particle size behind the ball milling≤2 μ m; Take out the zirconium post; Place 850 ℃ to calcine 2 hours down raw material; Ball milling 2 hours in planetary ball mill once more; Raw material particle size behind the ball milling≤2 μ m takes out the zirconium post, places under 160 ℃ of temperature baking to take out dry for standby (oven dry back water content 0.2%) after 2 hours raw material;
2) zinc silicate Zn
2SiO
4Preparation, in 2: 1 weighing ZnO of amount of substance ratio and SiO
2, mix in the planetary ball mill of back ball milling with deionized water and zirconium post 3 hours, raw material particle size behind the ball milling≤2 μ m; Take out the zirconium post; With raw material 1100 ℃ of down calcinings 2 hours, ball milling 2 hours in planetary ball mill again, raw material particle size behind the ball milling≤2 μ m; Take out the zirconium post, raw material is placed to dry by the fire under 160 ℃ of temperature took out subsequent use after (oven dry back water cut 0.2%) in 2 hours;
3) zinc borosilicate glass ZnO-B
2O
3-SiO
2The preparation of (abbreviating ZBS as) is by following prescription weighing ZnO, B
2O
3And SiO
2: ZnO 40% (amount of substance); B
2O
345% (amount of substance); SiO
215% (amount of substance) mixed in the planetary ball mill of back ball milling 3 hours, raw material particle size behind the ball milling≤2 μ m with deionized water and zirconium post; Take out the zirconium post; Liquid glass was founded in oven dry back (oven dry back water cut 0.2%) calcining under 1100 ℃ in 2 hours, quenched, and pulverized subsequent use;
Wherein each step of step 1) to step 3) does not have time sequence;
4) with above-mentioned 2) and 3) in the Zn that obtains
2SiO
4With ZBS by weight Zn
2SiO
445% (weight), ZBS 55% (weight) weighing mixed in the planetary ball mill of back ball milling 3 hours with deionized water and zirconium post; Raw material particle size behind the ball milling≤2 μ m takes out the zirconium post, places under 160 ℃ of temperature baking after 2 hours raw material; Calcined 2 hours down at 650 ℃, ball milling is 2 hours in planetary ball mill, raw material particle size behind the ball milling≤2 μ m; Take out the zirconium post, with raw material place under 160 ℃ of temperature baking after 2 hours (oven dry back water cut 0.2%) subsequent use;
5) with above-mentioned 1) and 4) in the NiCuZn ferrite, the Zn that obtain
2SiO
4+ ZBS pottery and Bi
2O
3Press the said prescription weighing of table 1, mix ball milling 3 hours in the planetary ball mill of back with deionized water and zirconium post, raw material particle size behind the ball milling≤2 μ m takes out the zirconium post, and raw material is placed baking 2 hours (oven dry back water cut 0.2%) under 160 ℃ of temperature;
6) step 5) gained mixed powder is added polyvinyl alcohol water solution and granulation, it is shaped to circular and disk shape, the annulus of compression moulding and former are placed 850 ℃ of sintering temperatures, on Agilent 4991A network analyzer, measure its DIELECTRIC CONSTANTS
rWith initial permeability μ
iIt is following to record performance perameter:
| Sample number into spectrum | NiCuZn ferrite (weight part) | Zn 2SiO 4+ ZBS (weight part) | Bi 2O 3(weight part) | Sintering temperature (℃)/soaking time (h) | Density (g/cm 3) | ε r | μ i | Shrinking percentage (%) |
| I-1 | 100 | 0 | 3 | 890/4 | 4.9 | 16 | 110 | 17.1 |
| I-2 | 80 | 20 | 6 | 890/4 | 4.5 | 10 | 9.4 | 16.5 |
| I-3 | 80 | 20 | 3 | 890/4 | 4.3 | 9.9 | 9.2 | 16.3 |
| I-4 | 75 | 25 | 6 | 890/4 | 4.5 | 9.8 | 8.2 | 16.2 |
| I-5 | 75 | 25 | 3 | 890/4 | 4.4 | 9.4 | 7.9 | 16.8 |
| I-6 | 65 | 35 | 3 | 890/4 | 4.2 | 8.6 | 5.1 | 16.7 |
| I-7 | 55 | 45 | 3 | 890/4 | 3.9 | 8.5 | 3.8 | 17.0 |
| I-8 | 0 | 100 | 3 | 890/4 | 3.7 | 7.1 | 1 | 17.0 |
Table 1
Embodiment 2
Step 1)～step 5) obtains ferrite/ceramic composition with embodiment 1 in step 5).
Embodiment 3
With prepared ferrite/ceramic composition among the embodiment 2, add polyvinyl alcohol water solution, be sintered to laminated inductive and chip-type filter together with Ag or Ag/Pt alloy electrode after the making moulding, sintering temperature is with embodiment 1 table 1.
Embodiment 4
1) the ferritic preparation of NiCuZn is by following prescription weighing Fe
2O
3, ZnO, NiO and CuO:Fe
2O
3: 48% (amount of substance); ZnO:34% (amount of substance); NiO:9% (amount of substance); CuO:9% (amount of substance) mixes ball milling 6 hours in the planetary ball mill of back, raw material particle size behind the ball milling≤2 μ m with above-mentioned raw materials with deionized water and zirconium post; Take out the zirconium post; Then 950 ℃ of down calcinings 4 hours, ball milling 2 hours in planetary ball mill once more, raw material particle size behind the ball milling≤2 μ m; Take out the zirconium post, it is subsequent use to place under 160 ℃ of temperature baking to take out oven dry (oven dry back water cut 0.2%) after 2 hours raw material;
2) zinc silicate Zn
2SiO
4Preparation, in 2: 1 weighing ZnO of amount of substance ratio and SiO
2, mix in the planetary ball mill of back ball milling with deionized water and zirconium post 6 hours, raw material particle size behind the ball milling≤2 μ m; Take out the zirconium post; With raw material 1200 ℃ of down calcinings 2 hours, ball milling 2 hours in planetary ball mill again, raw material particle size behind the ball milling≤2 μ m; Take out the zirconium post, with raw material place under 160 ℃ of temperature baking after 2 hours (oven dry back water cut 0.2%) take out subsequent use;
3) zinc borosilicate glass ZnO-B
2O
3-SiO
2The preparation of (abbreviating ZBS as) is by following prescription weighing ZnO, B
2O
3And SiO
2: ZnO 40% (amount of substance); B
2O
345% (amount of substance); SiO
215% (amount of substance) mixed in the planetary ball mill of back ball milling 3～6 hours, raw material particle size behind the ball milling≤2 μ m with deionized water and zirconium post; Take out the zirconium post; Liquid glass was founded in oven dry back (oven dry back water cut 0.2%) calcining under 1200 ℃ in 4 hours, quenched, and pulverized subsequent use;
Wherein each step of step 1) to step 3) does not have time sequence;
4) with above-mentioned 2) and 3) in the Zn that obtains
2SiO
4With ZBS by weight Zn
2SiO
445% (weight), ZBS 55% (weight) weighing mixed in the planetary ball mill of back ball milling 6 hours with deionized water and zirconium post; Raw material particle size behind the ball milling≤2 μ m takes out the zirconium post, places under 160 ℃ of temperature baking after 2 hours (oven dry back water cut 0.2%) raw material; Calcined 2 hours down at 750 ℃; Ball milling is 2 hours in planetary ball mill, raw material particle size behind the ball milling≤2 μ m, and it is subsequent use (to dry back water cut 0.2%) in baking under 160 ℃ of temperature after 2 hours;
5) with above-mentioned 1) and 4) in the NiCuZn ferrite, the Zn that obtain
2SiO
4+ ZBS pottery and Bi
2O
3Press the said prescription weighing of table 2, mix ball milling 6 hours in the planetary ball mill of back with deionized water and zirconium post, raw material particle size behind the ball milling≤2 μ m takes out the zirconium post, and raw material is placed baking 2 hours (oven dry back water cut 0.2%) under 160 ℃ of temperature;
6) step 5) gained mixed powder is added polyvinyl alcohol water solution and granulation, it is shaped to circular and disk shape, the annulus of compression moulding and former are placed 900 ℃ of sintering temperatures, on Agilent 4991A network analyzer, measure its DIELECTRIC CONSTANTS
rWith initial permeability μ
iIt is following to record performance perameter:
| Numbering | NiCuZn ferrite (weight part) | Zn 2SiO 4+ ZBS (weight part) | Bi 2O 3(weight part) | Sintering temperature (℃)/soaking time (h) | Density (g/cm 3) | ε r | μ i | Shrinking percentage (%) |
| II-1 | 100 | 0 | 3 | 890/4 | 5.3 | 17 | 311 | 20.7 |
| II-2 | 80 | 20 | 6 | 890/4 | 4.5 | 10 | 22.4 | 16.5 |
| II-3 | 80 | 20 | 3 | 890/4 | 4.3 | 9.9 | 24.9 | 16.8 |
| II-4 | 75 | 25 | 6 | 890/4 | 4.5 | 10 | 19 | 17.5 |
| II-5 | 75 | 25 | 3 | 890/4 | 4.4 | 9.4 | 20 | 16.9 |
| II-6 | 70 | 30 | 6 | 890/4 | 4.5 | 10 | 15.8 | 17.7 |
| II-7 | 70 | 30 | 3 | 890/4 | 4.3 | 9.5 | 15.7 | 17.1 |
| II-8 | 65 | 35 | 3 | 890/4 | 4.2 | 8.6 | 5.1 | 16.7 |
| II-9 | 55 | 45 | 3 | 890/4 | 3.9 | 8.5 | 3.8 | 17.0 |
Table 2
Embodiment 5
Step 1)～step 5) obtains ferrite/ceramic composition with embodiment 4 in step 5).
Embodiment 6
With prepared ferrite/ceramic composition among the embodiment 5, add polyvinyl alcohol water solution, after the making moulding, be sintered to laminated inductive and chip-type filter together with Ag or Ag/Pt alloy electrode, sintering temperature is with embodiment 4 tables 2.
Claims (7)
1. ferrite/ceramic composite, this matrix material is a sintered compact, it is characterized in that, comprises following component:
NiCuZn ferrite 70～80 weight parts,
Zn
2SiO
4System's pottery 20～30 weight parts,
Bi
2O
33～6 weight parts;
Wherein component is constructed as follows in the component NiCuZn ferrite:
Ferriferous oxide 45%～50% (amount of substance) is with Fe
2O
3Meter,
Zinc oxide 10%～40% (amount of substance) is in ZnO,
Nickel oxide 5%～40% (amount of substance) is in NiO,
Copper oxide 5%～20% (amount of substance) is in CuO;
Component Zn wherein
2SiO
4Be that ceramic composition is constructed as follows:
Zn
2SiO
425%～60% (weight),
Zinc borosilicate glass 40%～75% (weight);
Wherein the component of component zinc borosilicate glass is constructed as follows:
Zinc oxide 30%～65% (amount of substance) is in ZnO,
Boron oxide compound 20%～60% (amount of substance) is with B
2O
3Meter,
Si oxide 5%～30% (amount of substance) is with SiO
2Meter.
2. ferrite/ceramic composite according to claim 1 in electrical element as the application of dielectric material.
3. the preparation method of a ferrite/ceramic composite is characterized in that, may further comprise the steps:
1) preparation NiCuZn ferrite: the raw material of preparing following amount of substance ratio: 45%～50% Fe
2O
3, 10%～40% ZnO, 5%～40% NiO, 5%～20% CuO, above-mentioned raw materials is processed as mixed powder F1, F1 was calcined 2～4 hours in 850 ℃～950 ℃ environment, be processed as mixed powder F then;
Preparation zinc silicate Zn
2SiO
4: prepare ZnO and SiO at 2: 1 in the amount of substance ratio
2, above-mentioned two kinds of materials are processed as mixed powder M1, get this mixed powder M1 and place 1100 ℃～1200 ℃ environment calcinings 2 hours～4 hours, get material M2, material M2 is processed as powder M;
Preparation zinc borosilicate glass ZnO-B
2O
3-SiO
2(being designated hereinafter simply as ZBS): the raw material of preparing following amount of substance ratio: 30%～65% ZnO, 20%～60% B
2O
3, 5%～30% SiO
2, above-mentioned raw materials is processed as powder N1, place 1100 ℃～1200 ℃ environment calcinings to found into liquid glass in 2 hours～4 hours powder N1, quench, obtain powder N after the pulverizing;
2) get the powder N of the powder M and 40%～70% (weight) of 25%～60% (weight), process mixed powder X1, place 650 ℃～750 ℃ environment calcinings to obtain material X2 in 1 hour～3 hours X1, X2 is processed as powder X-ray;
3) get the mixed powder F of 70～80 weight parts, the powder X-ray of 20～30 weight parts and the Bi of 3～6 weight parts
2O
3Process mixed powder Y1, add tackiness agent, granulation, moulding obtain Y2, and Y2 was placed 850 ℃～900 ℃ environment sintering 2 hours～4 hours, obtain said ferrite/ceramic composite.
4. method according to claim 3 is characterized in that, the said tackiness agent of step 3) is a polyvinyl alcohol water solution.
5. method according to claim 3; It is characterized in that; Step 1), 2) and 3) in the concrete technology of processing of powder and mixed powder be: raw material is mixed in planetary ball mill with deionized water and zirconium post; Raw material ball is worn into uniform mixture, and mixture particle diameter≤2 μ m takes out the product of ball milling being crossed behind the zirconium post and dries to water cut below 1%.
6. the preparation method of a ferrite/ceramic composition is characterized in that, it may further comprise the steps:
1) preparation NiCuZn ferrite: the raw material of preparing following amount of substance ratio: 45%～50% Fe
2O
3, 10%～40% ZnO, 5%～40% NiO, 5%～20% CuO, above-mentioned raw materials is processed as mixed powder F1, F1 was calcined 2～4 hours in 850 ℃～950 ℃ environment, be processed as mixed powder F then;
Preparation zinc silicate Zn
2SiO
4: prepare ZnO and SiO at 2: 1 in the amount of substance ratio
2, above-mentioned two kinds of materials are processed as mixed powder M1, get this mixed powder M1 and place 1100 ℃～1200 ℃ environment calcinings 2 hours～4 hours, get material M2, material M2 is processed as powder M;
Preparation zinc borosilicate glass ZnO-B
2O
3-SiO
2(being designated hereinafter simply as ZBS): the raw material of preparing following amount of substance ratio: 30%～65% ZnO, 20%～60% B
2O
3, 5%～30% SiO
2, above-mentioned raw materials is processed as powder N1, place 1100 ℃～1200 ℃ environment calcinings to found into liquid glass in 2 hours～4 hours powder N1, quench, obtain powder N after the pulverizing;
2) get the powder N of the powder M and 40%～70% (weight) of 25%～60% (weight), process mixed powder X1, place 650 ℃～750 ℃ environment calcinings to obtain material X2 in 1 hour～3 hours X1, X2 is processed as powder X-ray;
3) get the mixed powder F of 70～80 weight parts, the powder X-ray of 20～30 weight parts and the Bi of 3～6 weight parts
2O
3Process mixed powder, obtain said ferrite/ceramic composition.
7. method according to claim 6; It is characterized in that; Each step 1), 2) and 3) in the concrete technology of processing of powder and mixed powder be: raw material is mixed in planetary ball mill with deionized water and zirconium post; Raw material ball is worn into uniform mixture, and mixture particle diameter≤2 μ m takes out the product of ball milling being crossed behind the zirconium post and dries to water cut below 1%.
Priority Applications (1)
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| CN102838346B (en) * | 2012-10-09 | 2014-04-09 | 电子科技大学 | Antenna substrate material using spinel ferrite as matrix and preparation method thereof |
| CN103626515A (en) * | 2013-12-02 | 2014-03-12 | 深圳顺络电子股份有限公司 | Laminated component and production method thereof |
| CN104829239B (en) * | 2015-03-27 | 2017-03-15 | 电子科技大学 | LTCC power inductance devices matrix and ceramic medium material matching co-firing method |
| JP6024843B1 (en) * | 2015-04-02 | 2016-11-16 | Tdk株式会社 | Ferrite composition and electronic component |
| KR20160118973A (en) | 2015-04-02 | 2016-10-12 | 티디케이가부시기가이샤 | Ferrite composition and electronic component |
| CN105036722A (en) * | 2015-06-25 | 2015-11-11 | 深圳振华富电子有限公司 | Nicuzn ferrite and preparation method thereof |
| JP6740994B2 (en) * | 2017-11-29 | 2020-08-19 | 株式会社村田製作所 | Glass-ceramic-ferrite composition and electronic component |
| JP2019156664A (en) * | 2018-03-09 | 2019-09-19 | 株式会社村田製作所 | Composite magnetic material and electronic component using the same |
| CN108503349B (en) * | 2018-03-21 | 2022-02-08 | 江西国创产业园发展有限公司 | High-current-resistant low-temperature sintered NiCuZn ferrite material and preparation method thereof |
| US20190371503A1 (en) * | 2018-06-01 | 2019-12-05 | Murata Manufacturing Co., Ltd. | Magnetic composite and electronic component using the same |
| CN110342922B (en) * | 2019-06-11 | 2021-11-12 | 深圳顺络电子股份有限公司 | Composite ferrite material, preparation method thereof and laminated inductor |
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| CN1542875A (en) * | 2003-04-29 | 2004-11-03 | 电子科技大学 | A broad band magneto-electric composite material and method for making same |
| CN101514102A (en) * | 2009-03-30 | 2009-08-26 | 电子科技大学 | Low-temperature matching co-firing method of ferrite and ceramic material |
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| CN101514102A (en) * | 2009-03-30 | 2009-08-26 | 电子科技大学 | Low-temperature matching co-firing method of ferrite and ceramic material |
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