CN110395976A - A kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope - Google Patents
A kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope Download PDFInfo
- Publication number
- CN110395976A CN110395976A CN201910779164.1A CN201910779164A CN110395976A CN 110395976 A CN110395976 A CN 110395976A CN 201910779164 A CN201910779164 A CN 201910779164A CN 110395976 A CN110395976 A CN 110395976A
- Authority
- CN
- China
- Prior art keywords
- nickel
- nitrate
- zinc ferrite
- preparation
- ceramic material
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—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
- C04B35/26—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 ferrites
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2616—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing lithium
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—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
- C04B35/26—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 ferrites
- C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/342—Oxides
- H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3279—Nickel oxides, nickalates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Abstract
A kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope belongs to magnetic, sulfate ferroelectric functional material technical field, and it is an object of the present invention to provide a kind of lithium aluminium codope nickel-zinc ferrite ceramic material using sol-gel method preparation with good soft magnetism and dielectric property.Using nickel nitrate, zinc nitrate, ferric nitrate, lithium nitrate and aluminum nitrate as raw material, solvent uses deionized water, weighs raw material according to chemical element molar ratio, is configured to colloidal sol, excludes organic matter under water-bath, obtain precursor powder；Nickel-zinc ferrite precursor powder, grinding are measured, sieving, bonding are granulated, and about 1 mm of thickness is made, and green body is placed in sintering furnace and is sintered, keeps the temperature by the ceramic body of 10 mm of diameter, obtains while having high dielectric property and magnetic nickel-zinc ferrite ceramic material.Method therefor simple process of the present invention, easy to industrialized production, the ceramics sample consistency of preparation is high, particle uniformity is good, magnetic, excellent electrical properties.
Description
Technical field
The invention belongs to magnetic, sulfate ferroelectric functional material technical field, and in particular to a kind of nickel-zinc ferrite pottery of lithium aluminium codope
The preparation method of ceramic material.
Background technique
In recent years, the fast development of information industry technology promotes electronic component towards miniaturization and multifunction
Direction is developed.Meanwhile the component material with good magnetic, Electricity Functional characteristic becomes multifunctional material research hotspot.Accordingly, small
The development and utilization of coercivity, high saturation and magnetic intensity, high resistivity material becomes the key of soft magnetism area research.Wherein, nickel
Zn ferrite is more and more applied because of its superior soft magnetic characteristic and dielectric properties in generator, transformer, electro-magnetic wave absorption
The key area of the industrial sectors such as device.
Currently, focusing primarily upon the improvement of preparation method and the modification of material composition for the study on the modification of nickel-zinc ferrite
With two aspect of optimization.Therefore the change of its component can be realized by ion doping, and then reach and change material magnetic, electrical characteristics
Purpose.In most cases, pass through divalent metal (such as Cu2+, Mn2+, Co2+Deng) doping substitution MFe2O4(spinel-type
Ferrite chemical molecular formula, M are generally divalent metal) in the location of M, realize the optimization of magnetic, electrical property.
Summary of the invention
The purpose of the present invention is to provide a kind of lithiums using sol-gel method preparation with good soft magnetism and dielectric property
Aluminium codope nickel-zinc ferrite ceramic material.Its potsherd consistency height, crystal grain homoepitaxial.
The present invention adopts the following technical scheme:
A kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope, includes the following steps:
The first step, the preparation of the nickel-zinc ferrite precursor powder of lithium aluminium codope
(1) it is weighed accordingly according to the ratio that the molar ratio of nickel, zinc, iron, lithium, aluminium and citric acid is 0.5-x:0.5-x:2:x:x:6
Nickel nitrate, zinc nitrate, ferric nitrate, lithium nitrate, aluminum nitrate and the citric acid of quality, wherein 0.000≤x≤0.100；
(2) nickel nitrate, zinc nitrate and ferric nitrate are successively substantially dissolved in deionized water and continue stirring and form solution A；
(3) using deionized water as solvent, lithium nitrate and aluminum nitrate are substantially soluble in wherein and continue stirring form B solution；
(4) B solution is all slowly added in solution A, is stirred solution to uniform, formation C solution；
(5) citric acid and polyethylene glycol are successively added into C solution, is placed in 80 DEG C of water-baths and stirs 0.5h, until being formed solidifying
Glue；
(6) gel of formation is dried, obtains dry gel powder, dry gel powder is placed on electric furnace, tentatively exclusion organic matter, obtained
Fine-powder, grinding uniformly, are placed in Muffle furnace, keep the temperature 12h at 600 DEG C, organic matter is further excluded, Ni Zn ferrimagnet is obtained
Body precursor powder；
Second step, the preparation of the nickel-zinc ferrite ceramic material of lithium aluminium codope
(1) the nickel-zinc ferrite precursor powder for obtaining the first step is ground, and adhesive is added and is uniformly mixed, is ground up, sieved, makes
Grain, tabletting, dumping, obtain green body；
(2) obtained green body is placed in Muffle furnace at 1200 DEG C, is sintered 8h, obtain the nickel-zinc ferrite ceramics of lithium aluminium codope
Material.
Stirring in water bath rate is 200rpm in the first step.
The additional amount of polyethylene glycol described in the first step is 5g.
The additive amount of adhesive described in second step are as follows: 15-20 drop adhesive, described adhesive are added in every 30g powder
For the polyvinyl alcohol of mass ratio 1:1 and the mixture of glycerol.
Be ground up, sieved, be granulated described in second step, tabletting, the process of dumping it is as follows:
By nickel-zinc ferrite precursor powder addition adhesive be uniformly mixed, after grinding, be made under 12MPa pressure with a thickness of
The disk of 5mm, diameter 25mm, are placed in mortar and grind, and cross 80-120 mesh；
By the powder after sieving in the case where pressure is 4MPa, it is made with a thickness of 1mm, the green body of diameter 10mm；
Green body is placed in dumping in Muffle furnace, dump temperature is 650 DEG C, soaking time 0.5h.
Beneficial effects of the present invention are as follows:
The present invention utilizes Li1+2S unpaired electron soft magnetism and ferromagnetic characteristic nickel-zinc ferrite is doped, while in order to
It balances chemical valence and uses Al3+Codope is carried out, increases it by material soft magnetism and dielectric property.
For the preparation of soft magnetic ferrites, select suitable preparation process particularly important, suitable doping member
Also the same key of selection of element and doping ratio.The present invention prepares Li using sol-gel method1+And Al3+The Ni of codope0.5- xZn0.5-xLixAlxFe2O4Sample, it is intermediate by regulating and controlling its bath temperature, stirring rate, calcination condition, body preparation pressure etc.
Procedure parameter finally realizes high-compactness, the single-size of sample, it is with good soft magnetism and dielectric properties after tested.
The present invention by adopting the above technical scheme the advantages of be: (1) prices of raw materials of the sample preparation are cheap；(2) molten
Glue-gel reaction process component is controllable, prevents miscellaneous phase；(3) ceramics sample shows high saturation and magnetic intensity, low coercive
Power and high dielectric property.
Detailed description of the invention
Fig. 1 is the X-ray diffractogram of the ferrite ceramics sample of preparation of the embodiment of the present invention.
Fig. 2 is the hysteresis loop figure of the ferrite ceramics sample of preparation of the embodiment of the present invention；
Fig. 3 is the dielectric and magnetic figure (ε '-f curve) of the ferrite ceramics sample of preparation of the embodiment of the present invention.
Specific embodiment
Embodiment 1
Step 1: Ni0.475Zn0.475Li0.025Al0.025Fe2O4The preparation of precursor powder
(1) 9.766 g nickel nitrates, 9.991 g zinc nitrates and 57.714g ferric nitrate are weighed, it, will using deionized water as solvent
Three kinds of raw materials are completely dissolved, and obtain solution A；
(2) 0.121 g lithium nitrate and 0.663g aluminum nitrate are weighed, and deionized water is added, stirs to being thoroughly mixed, obtains solution
B；
(3) solution A is placed in ultrasonic treatment, then B solution is slowly added in solution A, until forming homogeneous solution, added
81.096g anhydrous citric acid, stirs evenly, and is eventually adding 5.0 g polyethylene glycol and promotes plastic；
(4) mixed solution finally obtained in above-mentioned steps (3) is placed in water-bath, adjusting temperature is 80 DEG C, stirring rate
For 200 rpm, until forming xerogel；
(5) obtained xerogel is placed on electric furnace, the preliminary exclusion of organic matter is carried out in ventilating kitchen, subtle powder can be obtained
End, then grinding uniformly, is placed in Muffle furnace, 2 h is kept the temperature at 600 DEG C, organic matter is further excluded, iron oxygen finally can be obtained
Body precursor powder；
Step 2: the preparation and sintering of lithium aluminium codope nickel-zinc ferrite ceramics sample
(1) polyvinyl alcohol, glycerol will be added in the precursor prepared in the first step as adhesive, be uniformly mixed, sufficiently grind
Mill, is made about 5 mm of thickness under 12 MPa pressure, and the disk of 25 mm of diameter is subsequently placed in mortar and grinds, and crosses 80 mesh -120
Mesh；
(2) powder being sieved in selecting step (1) carries out the production of ceramic body, and pressure is 4 MPa, about 1 mm of green body thickness,
Diameter 10mm；
(3) green body made is placed in Muffle furnace and carries out dumping, dump temperature is 650 DEG C, soaking time 0.5h, by dumping
The 1200 DEG C of sintering 8h in Muffle furnace of ceramic body afterwards.Wherein heating rate control be 5 DEG C/min, rate of temperature fall be 10 DEG C/
min.Fig. 1, which is shown, is presented good object phase in the Ferrite Material, no miscellaneous phase occurs.
(4) above-mentioned sample ceramics sample is subjected to hysteresis loop test, it is 4kOe that Fig. 2, which shows that the sample works as externally-applied magnetic field,
When, have higher saturation magnetic moment (110.95 emu/g), lower coercivity (62.93Oe) shows good magnetic property.
(5) by the polishing of ceramics sample surface, polishing, by silver, production electrode, electrical property and magnetism testing are carried out.Fig. 2 is aobvious
Show that sample dielectric constant at 20 Hz is up to 2.7 × 105.Can be in test scope (20 Hz-2 MHz) with the increase of frequency
Dielectric constant has a declining tendency.
In order to study the influence that the doping of lithium aluminium element compares magnetic property and dielectric properties, following three implementation has also been devised
Example.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, Li1+And Al3+Doping weighs corresponding matter than different (x=0.000) respectively
The raw material of amount prepares sample, tests and finds by dielectric properties, compares embodiment 1, and the dielectric constant of sample reduces.By magnetism
Discovery can be tested, embodiment 1 is compared, the magnetic also sharp fall of sample drops to 96.31 emu/g, coercivity increases to
83.90Oe。
Embodiment 3
The present embodiment the difference from embodiment 1 is that, Li1+And Al3+Doping weighs corresponding matter than different (x=0.050) respectively
The raw material of amount prepares sample, tests and finds by dielectric properties, compares embodiment 1, and the dielectric constant of sample increases.By magnetism
Discovery can be tested, embodiment 1 is compared, the saturation magnetization of sample drops to 102.85emu/g, and coercivity value variation is little.
Embodiment 4
The present embodiment the difference from embodiment 1 is that, Li1+And Al3+Doping weighs corresponding matter than different (x=0.100) respectively
The raw material of amount prepares sample, tests and finds by dielectric properties, compares embodiment 1, and the dielectric constant of sample increased.By
Embodiment 1 is compared in magnetism testing discovery, and sample saturation magnetization drops to 99.99emu/g, and coercivity value variation is little.
Claims (5)
1. a kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope, characterized by the following steps:
The first step, the preparation of the nickel-zinc ferrite precursor powder of lithium aluminium codope
(1) it is weighed accordingly according to the ratio that the molar ratio of nickel, zinc, iron, lithium, aluminium and citric acid is 0.5-x:0.5-x:2:x:x:6
Nickel nitrate, zinc nitrate, ferric nitrate, lithium nitrate, aluminum nitrate and the citric acid of quality, wherein 0.000≤x≤0.100；
(2) nickel nitrate, zinc nitrate and ferric nitrate are successively substantially dissolved in deionized water and continue stirring and form solution A；
(3) using deionized water as solvent, lithium nitrate and aluminum nitrate are substantially soluble in wherein and continue stirring form B solution；
(4) B solution is all slowly added in solution A, is stirred solution to uniform, formation C solution；
(5) citric acid and polyethylene glycol are successively added into C solution, is placed in 80 DEG C of water-baths and stirs 0.5h, until being formed solidifying
Glue；
(6) gel of formation is dried, obtains dry gel powder, dry gel powder is placed on electric furnace, tentatively exclusion organic matter, obtained
Fine-powder, grinding uniformly, are placed in Muffle furnace, keep the temperature 12h at 600 DEG C, organic matter is further excluded, Ni Zn ferrimagnet is obtained
Body precursor powder；
Second step, the preparation of the nickel-zinc ferrite ceramic material of lithium aluminium codope
(1) the nickel-zinc ferrite precursor powder for obtaining the first step is ground, and adhesive is added and is uniformly mixed, is ground up, sieved, makes
Grain, tabletting, dumping, obtain green body；
(2) obtained green body is placed in Muffle furnace at 1200 DEG C, is sintered 8h, obtain the nickel-zinc ferrite ceramics of lithium aluminium codope
Material.
2. a kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope according to claim 1, feature
Be: stirring in water bath rate is 200rpm in the first step.
3. a kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope according to claim 1, feature
Be: the additional amount of polyethylene glycol described in the first step is 5g.
4. a kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope according to claim 1, feature
It is: the additive amount of adhesive described in second step are as follows: 15-20 drop adhesive is added in every 30g powder, described adhesive is matter
Measure the mixture of the polyvinyl alcohol and glycerol than 1:1.
5. a kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope according to claim 1, feature
Be: be ground up, sieved, be granulated described in second step, tabletting, the process of dumping it is as follows:
By nickel-zinc ferrite precursor powder addition adhesive be uniformly mixed, after grinding, be made under 12MPa pressure with a thickness of
The disk of 5mm, diameter 25mm, are placed in mortar and grind, and cross 80-120 mesh；
By the powder after sieving in the case where pressure is 4MPa, it is made with a thickness of 1mm, the green body of diameter 10mm；
Green body is placed in dumping in Muffle furnace, dump temperature is 650 DEG C, soaking time 0.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779164.1A CN110395976B (en) | 2019-08-22 | 2019-08-22 | Preparation method of lithium-aluminum co-doped nickel-zinc ferrite ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779164.1A CN110395976B (en) | 2019-08-22 | 2019-08-22 | Preparation method of lithium-aluminum co-doped nickel-zinc ferrite ceramic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110395976A true CN110395976A (en) | 2019-11-01 |
| CN110395976B CN110395976B (en) | 2022-09-23 |
Family
ID=68329023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910779164.1A Active CN110395976B (en) | 2019-08-22 | 2019-08-22 | Preparation method of lithium-aluminum co-doped nickel-zinc ferrite ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110395976B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403366A (en) * | 2022-08-24 | 2022-11-29 | 厦门大学 | Lithium-doped nickel-zinc ferrite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486958A (en) * | 2003-04-01 | 2004-04-07 | 上海大学 | Prepn of doped magnetic ferrite material |
| JP2005145781A (en) * | 2003-11-18 | 2005-06-09 | Fdk Corp | Ferrite sintered compact |
| CN104402427A (en) * | 2014-11-27 | 2015-03-11 | 电子科技大学 | Low-coercivity LiZnTi gyromagnetic ferrite material and preparation method thereof |
-
2019
- 2019-08-22 CN CN201910779164.1A patent/CN110395976B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486958A (en) * | 2003-04-01 | 2004-04-07 | 上海大学 | Prepn of doped magnetic ferrite material |
| JP2005145781A (en) * | 2003-11-18 | 2005-06-09 | Fdk Corp | Ferrite sintered compact |
| CN104402427A (en) * | 2014-11-27 | 2015-03-11 | 电子科技大学 | Low-coercivity LiZnTi gyromagnetic ferrite material and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| AILIN XIA等: "Structural and magnetic properties of Li–Al-substituted Ni–Zn–Cu ferrite powders prepared via chemical coprecipitation method", 《J MATER SCI: MATER ELECTRON》 * |
| MOHD. HASHIM等: "Structural, magnetic and electrical properties of Al3+ substituted Ni–Zn ferrite nanoparticles", 《JOURNAL OF ALLOYS AND COMPOUNDS》 * |
| MUKHLIS M. ISMAIL等: "Structural Analysis and Magnetic Properties of Lithium-Doped Ni-Zn Ferrite Nanoparticle", 《J SUPERCOND NOV MAGN》 * |
| SEA-FUE WANG等: "Effects of co-dopants on the magnetic properties of Ni–Zn ferrites", 《JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403366A (en) * | 2022-08-24 | 2022-11-29 | 厦门大学 | Lithium-doped nickel-zinc ferrite material and preparation method thereof |
| CN115403366B (en) * | 2022-08-24 | 2023-05-12 | 厦门大学 | Lithium-doped nickel-zinc ferrite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110395976B (en) | 2022-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kumar et al. | Low temperature synthesis of Ni0. 8Zn0. 2Fe2O4 powder and its characterization | |
| CN104446421B (en) | A kind of high magnetic permeability Ni-Zn soft magnetic ferrite material and preparation method | |
| CN107759216A (en) | A kind of method that sol-gal process prepares strontium lanthanum manganese oxide/CaCu 3 Ti 4 O compound magnetoelectric ceramic material | |
| CN101552072B (en) | Low-loss LiZn ferrite material for phase shifter and preparation method thereof | |
| CN107619271A (en) | NiCuZn Ferrite Materials and preparation method thereof, application | |
| CN106904956B (en) | High-dielectric-strength and high-magnetic nickel-doped barium ferrite ceramic material and preparation method thereof | |
| CN105884342A (en) | Preparation method for Bi-substituted LiZnTiMn gyromagnetic ferrite baseplate material | |
| Wang et al. | FeSiCrB amorphous soft magnetic composites filled with Co2Z hexaferrites for enhanced effective permeability | |
| CN100480187C (en) | Nickel zinc ferrite material and preparation method thereof | |
| JP2022506448A (en) | Low loss power ferrite and manufacturing method | |
| CN105016395B (en) | Nano ferrite material, and preparation method thereof | |
| Pei et al. | Effect of Bi-Co co-doping on the microstructure and magnetic properties of NiMgCuZn ferrites | |
| CN101266859A (en) | Method for quick sintering of micro-crystal ferrite magnetic core part | |
| CN110395976A (en) | A kind of preparation method of the nickel-zinc ferrite ceramic material of lithium aluminium codope | |
| CN101661823B (en) | Soft chemical method for synthesizing soft magnetic ferrite | |
| Zhao et al. | High cut-off frequency and low magnetic loss of Bi3+-Cr3+ co-substitution NiCuZn ferrite for chip inductors applications | |
| CN112851326A (en) | Co2Z-type ferrite material and preparation method thereof | |
| CN114634356B (en) | Ultralow-loss manganese zinc ferrite material at 1MHz and preparation method thereof | |
| Naidu et al. | Synthesis and characterization of novel nanoceramic magnesium ferrite material doped with samarium and dysprosium for designing–microstrip patch antenna | |
| CN104891976A (en) | Low-loss nickel-zinc ferrite material and preparation method | |
| KR101931635B1 (en) | Method for producing Ferrite core and the Ferrite core | |
| Hossain et al. | Synthesis and characterization of structural, magnetic and electrical properties of Mn substituted Co-Zn ferrite | |
| Yang et al. | Sintering behavior of Ni–Zn ferrite powders prepared by molten‐salt synthesis | |
| JP2010215453A (en) | NiCuZn FERRITE | |
| Huang et al. | Low temperature sintering behavior of La-Co substituted M-type strontium hexaferrites for use in microwave LTCC technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |