CN104788086B - A kind of soft magnetic ferrite - Google Patents
A kind of soft magnetic ferrite Download PDFInfo
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- CN104788086B CN104788086B CN201410240316.8A CN201410240316A CN104788086B CN 104788086 B CN104788086 B CN 104788086B CN 201410240316 A CN201410240316 A CN 201410240316A CN 104788086 B CN104788086 B CN 104788086B
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Abstract
The invention discloses a kind of soft magnetic ferrite, its raw material includes：Fe2O3、ZnO、Mn3O4、Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO, wherein, Fe2O3：ZnO：Mn3O4Mol ratio be (51~53)：(24~26)：(7~8), with Fe2O3、ZnO、Mn3O4Three's mass is with the basis of, Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO mass fraction be respectively 0.015%~0.025%, 0.010%~0.015%, 0.015%~0.020%, 0.015%~0.020%, 0.04%~0.05%, 0.020%~0.025%, 0.06%~0.08%；And after each raw material is weighed, by mixing, mixed once wet-milling, drying, pre-burning, secondary Wet blend-milling, drying, the mutual cooperation for sintering Alternative step, obtain soft magnetic ferrite.
Description
Technical field
The invention belongs to Ferrite Material technical field, more particularly to a kind of soft magnetic ferrite.
Background technology
Soft magnetic ferrite is a kind of electronics industry basic material, be widely used to automatically control, information storage, magnetic
Record the industry-by-industries such as head, TV, communication.The performance of soft magnetic ferrite mainly has composition and preparation technology to be determined
, on the one hand to need to optimize composition, on the other hand then need to visit to the soft magnetic ferrite for obtaining good combination property
Rope goes out suitable preparation technology.
The content of the invention
For overcome the deficiencies in the prior art, object of the present invention is to provide a kind of soft magnetic ferrite.
A kind of soft magnetic ferrite proposed by the present invention, its raw material include：
Fe2O3、ZnO、Mn3O4、Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO, wherein, Fe2O3：ZnO：Mn3O4's
Mol ratio is (51~53)：(24~26)：(7~8), with Fe2O3、ZnO、Mn3O4Three's mass is with the basis of, Bi2O3、SiO2、
CaO、Ta2O5、Nb2O5、V2O5, NiO mass fraction be respectively 0.015%~0.025%, 0.010%~0.015%,
0.015%~0.020%, 0.015%~0.020%, 0.04%~0.05%, 0.020%~0.025%, 0.06%~
0.08%；
Matched according to above-mentioned raw materials, prepare the soft magnetic ferrite according to the following steps：
S1：Each raw material is weighed by proportioning；
S2：The Fe that will be weighed in S12O3、ZnO、Mn3O4Powder carries out mixed once wet-milling, wherein, powder：Abrading-ball：Water is pressed
Mass ratio is 1：(2.9~3.1)：(0.9~1), Ball-milling Time are 4~5h；
S3：By the powder of completion mixed once wet-milling in S2 after 100~105 DEG C are dried 115~125min of processing,
Be put into Muffle furnace and carry out pre-burning, wherein, in burn-in process, using 5 DEG C/min average heating rate be warming up to temperature as 580~
600 DEG C, it is incubated after 2.5~3h with room temperature is furnace-cooled to, in temperature-rise period, with the rise of temperature, heating rate gradually increases；
S4：The powder that pre-burning is completed in S3 is subjected to secondary Wet blend-milling, wherein, powder：Abrading-ball：The mass ratio and S2 of water
Middle mixed once wet-milling keeps identical, and Ball-milling Time is 9~10h；
S5：By the powder that secondary Wet blend-milling is completed in S4 after 100~105 DEG C are dried 115~125min of processing,
After 5~7min of pressurize is molded under 200~210MPa pressure, it is incubated 3.5~4h at 1000~1050 DEG C and is sintered, it is cold
But, take out, obtain soft magnetic ferrite.
Preferably, in S2, powder：Abrading-ball：Water is 1 in mass ratio：3：1.
Preferably, in S3, drying temperature is 100 DEG C, drying time 120min.
Preferably, in S3, calcined temperature is 590 DEG C, soaking time 2.7h.
Preferably, Fe2O3：ZnO：Mn3O4Mol ratio be 52：25：7.5.
In the present invention, by using suitable Fe2O3：ZnO：Mn3O4Three matches, so as to control each to different of material
Property Changshu and magnetostriction coefficient so that material has preferable initial permeability, while is advantageous to improve Curie's temperature of material
Degree；By adding Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO is doped processing can improve the performance of material, its
In, Bi2O3The high frequency performance of material can be improved, its magnetic conductivity in high-frequency range is maintained high levels, SiO2Can be with
Hydrotropy effect is played, effectively lowers the loss of material, CaO can improve the high frequency performance of material and improve the magnetic conductivity of material,
Ta2O5、Nb2O5Contribute to the high frequency power loss of reduction material, V2O5The porosity of material with crystal grain thinning, can be reduced, is lifted
Ferritic initial permeability, NiO can pass through its Ni2+Suppress Fe2+Appearance, improve resistivity of material, reduce vortex damage
Consumption；By being optimized to preparation technology, by conventional ceramic technique through mixed once wet-milling, pre-burning and the cooperation of secondary Wet blend-milling
The powder of high quality is obtained, and coordinates sintering process so that each composition effect can give full play to, high performance soft so as to obtain
Magnetic ferrite material.
Embodiment
The present invention is described in detail with reference to instantiation, it should be appreciated that embodiment is served only for the explanation present invention,
Rather than for limiting the invention, any modification made on the basis of the present invention, equivalent substitution etc. are in the present invention
Protection domain in.
Embodiment 1
A kind of soft magnetic ferrite, its raw material include：Fe2O3、ZnO、Mn3O4、Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、
V2O5, NiO, wherein, Fe2O3：ZnO：Mn3O4Mol ratio be 52：25：7.5, with Fe2O3、ZnO、Mn3O4Three's mass and be base
Standard, Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO mass fraction be respectively 0.020%, 0.012%, 0.017%,
0.018%th, 0.045%, 0.022%, 0.07%；
Matched according to above-mentioned raw materials, prepare the soft magnetic ferrite according to the following steps：
S1：Each raw material is weighed by proportioning；
S2：The Fe that will be weighed in S12O3、ZnO、Mn3O4Powder carries out mixed once wet-milling, wherein, powder：Abrading-ball：Water is pressed
Mass ratio is 1：3：1, Ball-milling Time 4.5h；
S3：By the powder that mixed once wet-milling is completed in S2 after 100 DEG C are dried processing 120min, Muffle furnace is put into
Middle carry out pre-burning, wherein, in burn-in process, temperature is warming up to as 590 DEG C using 5 DEG C/min average heating rate, is incubated 2.7h
Afterwards with room temperature is furnace-cooled to, in temperature-rise period, with the rise of temperature, heating rate gradually increases；
S4：The powder that pre-burning is completed in S3 is subjected to secondary Wet blend-milling, wherein, powder：Abrading-ball：The mass ratio and S2 of water
Middle mixed once wet-milling keeps identical, Ball-milling Time 9.5h；
S5：By the powder that secondary Wet blend-milling is completed in S4 after 100 DEG C are dried processing 110min, pressed in 205MPa
After pressurize 6min is molded under power, it is incubated 4h at 1020 DEG C and is sintered, cool down, take out, obtain soft magnetic ferrite.
Embodiment 2
A kind of soft magnetic ferrite, its raw material include：Fe2O3、ZnO、Mn3O4、Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、
V2O5, NiO, wherein, Fe2O3：ZnO：Mn3O4Mol ratio be 51：25：7.5, with Fe2O3、ZnO、Mn3O4Three's mass and be base
Standard, Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO mass fraction be respectively 0.021%, 0.013%, 0.018%,
0.018%th, 0.047%, 0.023%, 0.072%；
Matched according to above-mentioned raw materials, prepare the soft magnetic ferrite according to the following steps：
S1：Each raw material is weighed by proportioning；
S2：The Fe that will be weighed in S12O3、ZnO、Mn3O4Powder carries out mixed once wet-milling, wherein, powder：Abrading-ball：Water is pressed
Mass ratio is 1：3：0.95, Ball-milling Time 5h；
S3：By the powder that mixed once wet-milling is completed in S2 after 102 DEG C are dried processing 125min, Muffle furnace is put into
Middle carry out pre-burning, wherein, in burn-in process, temperature is warming up to as 590 DEG C using 5 DEG C/min average heating rate, is incubated 2.8h
Afterwards with room temperature is furnace-cooled to, in temperature-rise period, with the rise of temperature, heating rate gradually increases；
S4：The powder that pre-burning is completed in S3 is subjected to secondary Wet blend-milling, wherein, powder：Abrading-ball：The mass ratio and S2 of water
Middle mixed once wet-milling keeps identical, Ball-milling Time 9.6h；
S5：By the powder that secondary Wet blend-milling is completed in S4 after 102 DEG C are dried processing 125min, pressed in 208MPa
After pressurize 6min is molded under power, it is incubated 3.8h at 1030 DEG C and is sintered, cool down, take out, obtain soft magnetic ferrite.
Embodiment 3
A kind of soft magnetic ferrite, its raw material include：Fe2O3、ZnO、Mn3O4、Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、
V2O5, NiO, wherein, Fe2O3：ZnO：Mn3O4Mol ratio be 53：26：8, with Fe2O3、ZnO、Mn3O4Three's mass and be base
Standard, Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO mass fraction be respectively 0.025%, 0.015%, 0.020%,
0.020%th, 0.05%, 0.025%, 0.08%；
Matched according to above-mentioned raw materials, prepare the soft magnetic ferrite according to the following steps：
S1：Each raw material is weighed by proportioning；
S2：The Fe that will be weighed in S12O3、ZnO、Mn3O4Powder carries out mixed once wet-milling, wherein, powder：Abrading-ball：Water is pressed
Mass ratio is 1：3.1：1, Ball-milling Time 4h；
S3：By the powder that mixed once wet-milling is completed in S2 after 105 DEG C are dried processing 115min, Muffle furnace is put into
Middle carry out pre-burning, wherein, in burn-in process, temperature is warming up to as 600 DEG C using 5 DEG C/min average heating rate, is incubated 2.5h
Afterwards with room temperature is furnace-cooled to, in temperature-rise period, with the rise of temperature, heating rate gradually increases；
S4：The powder that pre-burning is completed in S3 is subjected to secondary Wet blend-milling, wherein, powder：Abrading-ball：The mass ratio and S2 of water
Middle mixed once wet-milling keeps identical, Ball-milling Time 10h；
S5：By the powder that secondary Wet blend-milling is completed in S4 after 105 DEG C are dried processing 115min, pressed in 210MPa
After pressurize 5min is molded under power, it is incubated 3.5h at 1050 DEG C and is sintered, cool down, take out, obtain soft magnetic ferrite.
Embodiment 4
A kind of soft magnetic ferrite, its raw material include：Fe2O3、ZnO、Mn3O4、Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、
V2O5, NiO, wherein, Fe2O3：ZnO：Mn3O4Mol ratio be 51：24：7, with Fe2O3、ZnO、Mn3O4Three's mass and be base
Standard, Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO mass fraction be respectively 0.015%, 0.010%, 0.015%,
0.015%th, 0.04%, 0.020%, 0.06%；
Matched according to above-mentioned raw materials, prepare the soft magnetic ferrite according to the following steps：
S1：Each raw material is weighed by proportioning；
S2：The Fe that will be weighed in S12O3、ZnO、Mn3O4Powder carries out mixed once wet-milling, wherein, powder：Abrading-ball：Water is pressed
Mass ratio is 1：2.9：0.9, Ball-milling Time 5h；
S3：By the powder that mixed once wet-milling is completed in S2 after 100 DEG C are dried processing 125min, Muffle furnace is put into
Middle carry out pre-burning, wherein, in burn-in process, temperature is warming up to as 580 DEG C using 5 DEG C/min average heating rate, after being incubated 3h
With room temperature is furnace-cooled to, in temperature-rise period, with the rise of temperature, heating rate gradually increases；
S4：The powder that pre-burning is completed in S3 is subjected to secondary Wet blend-milling, wherein, powder：Abrading-ball：The mass ratio and S2 of water
Middle mixed once wet-milling keeps identical, Ball-milling Time 9h；
S5：By the powder that secondary Wet blend-milling is completed in S4 after 100 DEG C are dried processing 125min, pressed in 200MPa
After pressurize 7min is molded under power, it is incubated 4h at 1000 DEG C and is sintered, cool down, take out, obtain soft magnetic ferrite.
In embodiment 1-4, the properties of soft magnetic ferrite made from test, performance data is as shown in table 1.
| Saturation magnetization/Gs | Coercivity/(A/m) | Curie temperature/DEG C | Dielectric constant/(9.2GHz) | |
| Embodiment 1 | 7832 | 142 | 417 | 15 |
| Embodiment 2 | 7821 | 146 | 413 | 15 |
| Embodiment 3 | 7826 | 143 | 415 | 15 |
| Embodiment 4 | 7824 | 144 | 412 | 15 |
As shown by data in above-mentioned table 1, Ferrite Material disclosed in this invention have good combination property.
Claims (5)
1. a kind of soft magnetic ferrite, it is characterised in that its raw material includes：
Fe2O3、ZnO、Mn3O4、Bi2O3、SiO2、CaO、Ta2O5、Nb2O5、V2O5, NiO, wherein, Fe2O3：ZnO：Mn3O4Mole
Than for (51~53)：(24~26)：(7~8), with Fe2O3、ZnO、Mn3O4Three's mass is with the basis of, Bi2O3、SiO2、CaO、
Ta2O5、Nb2O5、V2O5, NiO mass fraction be respectively 0.015%~0.025%, 0.010%~0.015%, 0.015%~
0.020%th, 0.015%~0.020%, 0.04%~0.05%, 0.020%~0.025%, 0.06%~0.08%；
Matched according to above-mentioned raw materials, prepare the soft magnetic ferrite according to the following steps：
S1：Each raw material is weighed by proportioning；
S2：The Fe that will be weighed in S12O3、ZnO、Mn3O4Powder carries out mixed once wet-milling, wherein, powder：Abrading-ball：Water presses quality
Than for 1：(2.9~3.1)：(0.9~1), Ball-milling Time are 4~5h；
S3：By the powder that mixed once wet-milling is completed in S2 after 100~105 DEG C are dried 115~125min of processing, it is put into
Pre-burning is carried out in Muffle furnace, wherein, in burn-in process, temperature is warming up to as 580~600 using 5 DEG C/min average heating rate
DEG C, it is incubated after 2.5~3h with room temperature is furnace-cooled to, in temperature-rise period, with the rise of temperature, heating rate gradually increases；
S4：The powder that pre-burning is completed in S3 is subjected to secondary Wet blend-milling, wherein, powder：Abrading-ball：One in the mass ratio and S2 of water
Secondary Wet blend-milling keeps identical, and Ball-milling Time is 9~10h；
S5：By the powder that secondary Wet blend-milling is completed in S4 after 100~105 DEG C are dried 115~125min of processing,
After 5~7min of pressurize is molded under 200~210MPa pressure, it is incubated 3.5~4h at 1000~1050 DEG C and is sintered, it is cold
But, take out, obtain soft magnetic ferrite.
2. soft magnetic ferrite according to claim 1, it is characterised in that in S2, powder：Abrading-ball：Water presses quality
Than for 1：3：1.
3. soft magnetic ferrite according to claim 1, it is characterised in that in S3, drying temperature is 100 DEG C, is done
The dry time is 120min.
4. soft magnetic ferrite according to claim 1, it is characterised in that in S3, calcined temperature is 590 DEG C, is protected
The warm time is 2.7h.
5. soft magnetic ferrite according to claim 1, it is characterised in that Fe2O3：ZnO：Mn3O4Mol ratio be 52：
25：7.5.
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| CN109516815A (en) * | 2018-12-17 | 2019-03-26 | 安徽华林磁电科技有限公司 | A kind of wireless charging magnetic sheet soft magnetic ferrite |
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| CN106336211A (en) * | 2016-08-25 | 2017-01-18 | 天长市中德电子有限公司 | Wide-temperature, high Bs and high-direct current superposition soft magnetic ferrite material and production method thereof |
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|---|---|---|---|---|
| CN1793020A (en) * | 2005-11-17 | 2006-06-28 | 上海交通大学 | High performant low consumption manganese zine ferrite material and preparation process thereof |
| CN102194561A (en) * | 2010-03-17 | 2011-09-21 | 无锡斯贝尔磁性材料有限公司 | Soft magnetic ferrite material and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793020A (en) * | 2005-11-17 | 2006-06-28 | 上海交通大学 | High performant low consumption manganese zine ferrite material and preparation process thereof |
| CN102194561A (en) * | 2010-03-17 | 2011-09-21 | 无锡斯贝尔磁性材料有限公司 | Soft magnetic ferrite material and preparation process thereof |
Non-Patent Citations (1)
| Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516815A (en) * | 2018-12-17 | 2019-03-26 | 安徽华林磁电科技有限公司 | A kind of wireless charging magnetic sheet soft magnetic ferrite |
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