CN106495230A - A kind of preparation method of Barium hexaferrite - Google Patents
A kind of preparation method of Barium hexaferrite Download PDFInfo
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- CN106495230A CN106495230A CN201610989501.6A CN201610989501A CN106495230A CN 106495230 A CN106495230 A CN 106495230A CN 201610989501 A CN201610989501 A CN 201610989501A CN 106495230 A CN106495230 A CN 106495230A
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- barium hexaferrite
- barium
- hexaferrite
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
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- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention discloses a kind of preparation method of Barium hexaferrite, including：(1) according to mol ratio 1:12:Barium nitrate, ferric nitrate and citric acid are mixed and form aqueous solution by the ratio of (6 26)；(2) ammonia is added in solution, and up to pH 47,85 95 DEG C of water-bath heated at constant temperature 13 hours reacts which；(3) reactant is dried, obtains xerogel；(5) xerogel is calcined at 550 750 DEG C, is incubated 13 hours, obtains BaFe12O19Barium hexaferrite.Through X ray diffracting spectrum, show that the Barium hexaferrite that the present invention is prepared is Magnetoplumbate-type hexagonal Barium hexaferrite BaFe12O19.Its piece footpath is 8 26 μm, soilless sticking phenomenon.Its coercivity H is more than 368kA/m, the 200kA/m of Barium hexaferrite prepared far above additive method or so.
Description
Technical field
A kind of the present invention relates to technical field of magnetic materials, more particularly to preparation method of Barium hexaferrite.
Background technology
At present, used by absorbing material, the main body of absorbent development is still magnetic material, the high speed development of information technology so that
Ferrite magnetic material is more widely used, and wherein hexagonal crystal system Barium hexaferrite becomes people with its excellent Frequency Response
The emphasis of Recent study.Since World War II, especially developed country puts into substantial amounts of manpower and materials to carry out in succession for countries in the world
The research of absorbing material.In recent years, with the continuous development of electromagnetic technique, electromagnetic radiation is also more and more full of in ours
Life sky asks, therefore civilian absorbing material oneself widely paid close attention to.At present, the research of microwave absorbing material it is critical only that system
Standby go out absorbance height, thin coating, absorption band width, light weight, high temperature resistant, anti scuffing and low cost microwave absorbing material.
Content of the invention
It is an object of the invention to proposing a kind of preparation method of Barium hexaferrite so that the Barium hexaferrite performance for preparing
Excellent, possess more preferable absorbing property.
It is that the present invention is employed the following technical solutions up to this purpose：
A kind of preparation method of Barium hexaferrite, including：
(1) according to mol ratio 1:12:(6-26) barium nitrate, ferric nitrate and citric acid are mixed and are formed water-soluble by ratio
Liquid；
(2) ammonia is added in solution, and up to pH 4-7,85-95 DEG C of heated at constant temperature 1-3 hour of water-bath reacts which；
(3) reactant is dried, obtains xerogel；
(5) xerogel is calcined at 550-750 DEG C, is incubated 1-3 hours, obtains BaFe12O19Barium hexaferrite.
Through X ray diffracting spectrum, show that the Barium hexaferrite that the present invention is prepared is Magnetoplumbate-type hexagonal Barium hexaferrite
BaFe12O19.Its piece footpath is 8-26 μm, soilless sticking phenomenon.Its coercivity H is more than 368kA/m, prepares far above additive method
200kA/m of Barium hexaferrite for obtaining or so.As coercivity is bigger, magnetic loss is stronger, and therefore absorbing property is better, therefore originally
The Barium hexaferrite that invention is prepared possesses more excellent suction ripple energy-absorbing.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of preparation method of Barium hexaferrite, including：
(1) according to mol ratio 1:12:Barium nitrate, ferric nitrate and citric acid are mixed and form aqueous solution by 6 ratio；
(2) ammonia is added in solution, and up to pH 4,85 DEG C of water-bath heated at constant temperature 1 hour reacts which；
(3) reactant is dried, obtains xerogel；
(5) xerogel is calcined at 550 DEG C, is incubated 1 hour, obtains BaFe12O19Barium hexaferrite.
Embodiment 2
A kind of preparation method of Barium hexaferrite, including：
(1) according to mol ratio 1:12:Barium nitrate, ferric nitrate and citric acid are mixed and form aqueous solution by 26 ratio；
(2) ammonia is added in solution, and up to pH 7,95 DEG C of water-bath heated at constant temperature 3 hours reacts which；
(3) reactant is dried, obtains xerogel；
(5) xerogel is calcined at 750 DEG C, is incubated 3 hours, obtains BaFe12O19Barium hexaferrite.
Embodiment 3
A kind of preparation method of Barium hexaferrite, including：
(1) according to mol ratio 1:12:Barium nitrate, ferric nitrate and citric acid are mixed and form aqueous solution by 15 ratio；
(2) ammonia is added in solution, and up to pH 6,90 DEG C of water-bath heated at constant temperature 2 hours reacts which；
(3) reactant is dried, obtains xerogel；
(5) xerogel is calcined at 650 DEG C, is incubated 2 hours, obtains BaFe12O19Barium hexaferrite.
Through X ray diffracting spectrum, show that the Barium hexaferrite that embodiment 1-3 is prepared is Magnetoplumbate-type hexagonal Barium hexaferrite
BaFe12O19.Its piece footpath is 8-26 μm, soilless sticking phenomenon.Its coercivity H is more than 368kA/m, prepares far above additive method
200kA/m of Barium hexaferrite for obtaining or so.
Claims (1)
1. a kind of preparation method of Barium hexaferrite, including：
(1) according to mol ratio 1:12:(6-26) barium nitrate, ferric nitrate and citric acid are mixed and form aqueous solution by ratio；
(2) ammonia is added in solution, and up to pH 4-7,85-95 DEG C of heated at constant temperature 1-3 hour of water-bath reacts which；
(3) reactant is dried, obtains xerogel；
(5) xerogel is calcined at 550-750 DEG C, is incubated 1-3 hours, obtains BaFe12O19Barium hexaferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989501.6A CN106495230A (en) | 2016-11-10 | 2016-11-10 | A kind of preparation method of Barium hexaferrite |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610989501.6A CN106495230A (en) | 2016-11-10 | 2016-11-10 | A kind of preparation method of Barium hexaferrite |
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| CN106495230A true CN106495230A (en) | 2017-03-15 |
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| CN201610989501.6A Pending CN106495230A (en) | 2016-11-10 | 2016-11-10 | A kind of preparation method of Barium hexaferrite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298795A (en) * | 2020-03-19 | 2020-06-19 | 六盘水师范学院 | Performance optimization method of strontium titanate magnetic photocatalyst |
| CN114686168A (en) * | 2020-12-30 | 2022-07-01 | 洛阳尖端技术研究院 | Flaky ferrite wave-absorbing material, flaky ferrite/carbon composite wave-absorbing material, and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880272A (en) * | 2005-06-16 | 2006-12-20 | 中国科学院金属研究所 | Hexagonal sheet-like barium ferrite magnetic nanometer powder preparation method |
| CN102485692A (en) * | 2010-12-06 | 2012-06-06 | 沈阳理工大学 | Preparation method of two-dimensional sheet-shaped barium ferrite |
-
2016
- 2016-11-10 CN CN201610989501.6A patent/CN106495230A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880272A (en) * | 2005-06-16 | 2006-12-20 | 中国科学院金属研究所 | Hexagonal sheet-like barium ferrite magnetic nanometer powder preparation method |
| CN102485692A (en) * | 2010-12-06 | 2012-06-06 | 沈阳理工大学 | Preparation method of two-dimensional sheet-shaped barium ferrite |
Non-Patent Citations (1)
| Title |
|---|
| 刘俊丰: ""溶胶-凝胶法吸波材料钡铁氧体BaFe12O19的制备"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298795A (en) * | 2020-03-19 | 2020-06-19 | 六盘水师范学院 | Performance optimization method of strontium titanate magnetic photocatalyst |
| CN114686168A (en) * | 2020-12-30 | 2022-07-01 | 洛阳尖端技术研究院 | Flaky ferrite wave-absorbing material, flaky ferrite/carbon composite wave-absorbing material, and preparation method and application thereof |
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Application publication date: 20170315 |
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