CN106745298A - A kind of method for strengthening M-type strontium ferrite magnetic performance - Google Patents

A kind of method for strengthening M-type strontium ferrite magnetic performance Download PDF

Info

Publication number
CN106745298A
CN106745298A CN201611125130.3A CN201611125130A CN106745298A CN 106745298 A CN106745298 A CN 106745298A CN 201611125130 A CN201611125130 A CN 201611125130A CN 106745298 A CN106745298 A CN 106745298A
Authority
CN
China
Prior art keywords
raw material
ferrite
strontium ferrite
type strontium
sample
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
Application number
CN201611125130.3A
Other languages
Chinese (zh)
Other versions
CN106745298B (en
Inventor
夏爱林
李阳
罗宝媛
李昕
张艾君
周森晗
王裕晓
晋传贵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAANSHAN GAOKE MAGNETIC MATERIAL CO., LTD.
Original Assignee
Anhui University of Technology AHUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui University of Technology AHUT filed Critical Anhui University of Technology AHUT
Priority to CN201611125130.3A priority Critical patent/CN106745298B/en
Publication of CN106745298A publication Critical patent/CN106745298A/en
Application granted granted Critical
Publication of CN106745298B publication Critical patent/CN106745298B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
    • 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
    • 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
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • 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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides 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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3229—Cerium oxides or oxide-forming salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Power Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Compounds Of Iron (AREA)

Abstract

The invention discloses a kind of method for strengthening M-type strontium ferrite magnetic performance, belong to magnetic ferrites preparing technical field.The method is comprised the concrete steps that：Using SrO, Fe2O3And CeO2It is raw material, and is 1 according to Sr/ in raw material (Fe+Ce) atomic ratio:12 proportionings, calcine 5 hours in the Muffle furnace after manual mixing at 1200 DEG C, and post-calcination sample is the SrFe substituted using only Ce12‑xCexO19(x=0.1,0.2,0.3,0.4,0.5) ferrite powder.Ferrite powder contrast is without the SrFe for substituting12O19Ferrite, can by a relatively large margin lift its magnetic property, and coercivity maximum can improve more than 50%, and saturation magnetization is maximum to improve about 25%, thus has a good application prospect.

Description

A kind of method for strengthening M-type strontium ferrite magnetic performance
Technical field
The invention belongs to magnetic ferrites preparing technical field, and in particular to a kind of enhancing M-type strontium ferrite magnetic performance Method.
Background technology
The SrM ferrites of M types are the permanent-magnet ferrites that a class has extensive practical value, and it has cost performance high, just Suitable raw material and excellent chemical stability, very big demand is suffered from electronics, household electrical appliances, automobile and other industries etc..However, As the first big country of SrM ferrite productions, American-European Japan is but lagged behind always in properties of product.Therefore, being badly in need of seeking new SrM permanent-magnet ferrite preparation methods, to improve its level of production.
Rare earth element due to larger magnetic moment, thus in the research of magnetic material as ion substitution obtained compared with It is extensive research, but mainly in rare earth permanent magnet.It is cheap due to Rare-Earth Ce, at present, the NdFeB that La-Ce is substituted Material has obtained extensive research.However, several still rare, rarely seen patent reports of research of the Ce replacements in permanent-magnet ferrite Road is also to combine what is substituted with other elements, and products obtained therefrom performance particularly coercivity fails to obtain substantial raising.Than Such as, the patent of Application No. 200910049743.7, discloses a kind of so-called rare-earth permanent magnet ferrite, its be actually still with Sr or Ba ferrite prefiring materials are major ingredient, but with the addition of oxide or carbonation that main component is La, Ce, Nd and Pr Auxiliary agent, the coercivity of products obtained therefrom is only up to 3771Oe (300.3kA/m).Application No. 201510009114.7 it is special Profit, discloses a kind of main component for Fe(12-b-c-d-e)Sr(1-a)BaaCabCecPdO19Complex oxide, but also carried in patent To actually this be a kind of semi-hard magnetic materials, it is seen that its coercivity is not high.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of method for strengthening M-type strontium ferrite magnetic performance, to only profit Substituted with rare earth element ce, prepare the SrFe of excellent performance12-xCexO19Ferrite powder.
Preparation method of the present invention is simple and easy to apply similar to traditional conventional ceramic technique, and specific preparation process is as follows：
(1) SrO, Fe are used2O3And CeO2It is raw material, prepares SrFe12-xCexO19Ferrite, according to Sr/ in raw material (Fe+Ce) atomic ratio is 1:12 proportioning raw material.The selection range of x is 0.1,0.2,0.3,0.4 or 0.5.
(2) by raw material manual mixing 30min, it is well mixed it.
(3) gained powder is directly calcined in Muffle furnace.Post-calcination sample is the final ferrite powder of gained.
In view of the problem into phase, optimize as one kind, the temperature that step (3) calcining is chosen is 1200 DEG C, soaking time It is 5 hours.
The principles of science of the invention is：1.Ce3+Magnetic moment be less than Fe3+, after Ce occupies the brilliant position of Fe, cause not isomorphous position Magnetic moment difference increase, thus superexchange interaction increase, saturation magnetization increase.2.Ce3+With Fe3+Ionic radius difference compared with Greatly, thus larger internal stress is brought, the movement of domain wall when this hinders magnetization to a certain extent, thus make its coercivity Increase.
Compared with prior art, the present invention has following technique effect：
1st, prepared SrFe12-xCexO19Ferrite powder magnetism testing shows, after Ce is substituted, the saturation magnetic of sample Change intensity and coercivity has all risen, the saturation magnetization of powder sample reaches as high as more than 400mT, and coercivity is a maximum of about of 4500Oe, all far above the magnetic property of material in aforementioned patent, thus the present invention is finally to prepare high performance practical SrM iron Oxysome block provides good approach.
2nd, with single Ce as an alternative element obtain high magnetic characteristics ferrite powder.Ce is cheap, can be significantly Existing ferritic cost performance is improved, is practical there is provided good approach.
3rd, gained sample is only hand lapping, without early stage pre-burning, energy consumption can be greatly lowered.
Brief description of the drawings
Fig. 1 is the XRD of the sample of the embodiment of the present invention 1.
Fig. 2 is the ferritic hysteresis curve figures of unsubstituted SrM.
Fig. 3 is the hysteresis curve figure of the sample of the embodiment of the present invention 1.
Fig. 4 is the XRD of the sample of the embodiment of the present invention 2.
Fig. 5 is the hysteresis curve figure of the sample of the embodiment of the present invention 2.
Fig. 6 is the XRD of the sample of the embodiment of the present invention 3.
Fig. 7 is the hysteresis curve figure of the sample of the embodiment of the present invention 3.
Specific embodiment
Below in conjunction with drawings and Examples in detail the present invention is described in detail, but the present invention is not limited to following embodiments.
Embodiment 1
Using SrO, Fe2O3And CeO2It is raw material, prepares the SrFe of 2mmol11.9Ce0.1O19Ferrite, Sr/ in raw material (Fe+Ce) atomic ratio is 1:12.Then by raw material manual mixing 30min, it is well mixed it.By gained powder directly in horse Not calcined 1200 DEG C × 5 hours in stove.
Fig. 1 is the XRD of gained sample.It can be seen that the main component of sample is SrM ferrites.Fig. 2 is unsubstituted The ferritic hysteresis curve figures of SrM, Fig. 3 is the hysteresis curve figure of this example.Contrasting can without the SrM ferrites for substituting See, the Ce of this example substitutes ferrite its coercivity increases to 374.1kA/m from 239.3kA/m, improves about 56%；Saturation magnetic Change intensity increases to 53.2emu/g from 50.6, improves about 5%.It is fairly obvious that Ce substitutes performance boost.
Embodiment 2
Ferritic preparation method is with embodiment 1, the parameter of variation：The specific composition of prepared sample is SrFe11.8Ce0.2O19。
Fig. 4 is the XRD of gained sample.It can be seen that the main component of sample is SrM ferrites.Fig. 5 is this example The hysteresis curve figure of sample.Comparison diagram 2, the Ce of this example substitutes ferrite its coercivity to be increased to from 239.3kA/m 345.0kA/m, improves about 44%；Saturation magnetization increases to 60.7emu/g from 50.6, improves about 20%.Ce is substituted Performance boost is fairly obvious.
Embodiment 3
Ferritic preparation method is with embodiment 1, the parameter of variation：The specific composition of prepared sample is SrFe11.5Ce0.5O19。
Fig. 6 is the XRD of gained sample.It can be seen that the main component of sample is SrM ferrites.Fig. 7 is this example The hysteresis curve figure of sample.Comparison diagram 2, the Ce of this example substitutes ferrite its coercivity to be increased to from 239.3kA/m 353.5kA/m, improves about 48%；Saturation magnetization increases to 62.9emu/g from 50.6, improves about 24%.Ce is substituted Performance boost is fairly obvious.

Claims (2)

1. it is a kind of strengthen M-type strontium ferrite magnetic performance method, it is characterised in that comprise the following steps：
(1) SrO, Fe are used2O3And CeO2It is raw material, prepares SrFe12-xCexO19Ferrite, according to Sr/ (Fe+ in raw material Ce) atomic ratio is 1:12 proportioning raw material；Wherein：The selection range of x is 0.1,0.2,0.3,0.4 or 0.5；
(2) by the raw material manual mixing of step (1), it is well mixed it and obtains mixed-powder；
(3) step (2) gained mixed-powder is directly placed into Muffle furnace and is calcined；Post-calcination sample is magnetic property and significantly carries The M-type strontium ferrite for rising.
2. a kind of method for strengthening M-type strontium ferrite magnetic performance as claimed in claim 1, it is characterised in that the step (3) The temperature of calcining is 1200 DEG C, and calcination time is 5 hours.
CN201611125130.3A 2016-12-09 2016-12-09 A method of enhancing M-type strontium ferrite magnetic performance Active CN106745298B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611125130.3A CN106745298B (en) 2016-12-09 2016-12-09 A method of enhancing M-type strontium ferrite magnetic performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611125130.3A CN106745298B (en) 2016-12-09 2016-12-09 A method of enhancing M-type strontium ferrite magnetic performance

Publications (2)

Publication Number Publication Date
CN106745298A true CN106745298A (en) 2017-05-31
CN106745298B CN106745298B (en) 2018-11-30

Family

ID=58881841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611125130.3A Active CN106745298B (en) 2016-12-09 2016-12-09 A method of enhancing M-type strontium ferrite magnetic performance

Country Status (1)

Country Link
CN (1) CN106745298B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109020531A (en) * 2018-10-08 2018-12-18 哈尔滨理工大学 A kind of Sr1-xGdxFe12-xCuxO19M-type strontium ferrite magnetic material and preparation method thereof
CN115215643A (en) * 2022-07-21 2022-10-21 成都信息工程大学 Nd-Co Co-substituted M-type strontium ferrite and preparation method thereof
CN115974542A (en) * 2023-01-12 2023-04-18 中国科学院赣江创新研究院 Praseodymium-doped strontium ferrite wave-absorbing material and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273675A (en) * 1998-06-25 2000-11-15 Tdk株式会社 Hxagonal ferrite magnet
KR20150048256A (en) * 2013-10-23 2015-05-07 삼성전자주식회사 Magnet powders, production methods thereof, and magnets including the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273675A (en) * 1998-06-25 2000-11-15 Tdk株式会社 Hxagonal ferrite magnet
KR20150048256A (en) * 2013-10-23 2015-05-07 삼성전자주식회사 Magnet powders, production methods thereof, and magnets including the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109020531A (en) * 2018-10-08 2018-12-18 哈尔滨理工大学 A kind of Sr1-xGdxFe12-xCuxO19M-type strontium ferrite magnetic material and preparation method thereof
CN115215643A (en) * 2022-07-21 2022-10-21 成都信息工程大学 Nd-Co Co-substituted M-type strontium ferrite and preparation method thereof
CN115974542A (en) * 2023-01-12 2023-04-18 中国科学院赣江创新研究院 Praseodymium-doped strontium ferrite wave-absorbing material and preparation method thereof
CN115974542B (en) * 2023-01-12 2023-11-21 中国科学院赣江创新研究院 Praseodymium-doped strontium ferrite wave-absorbing material and preparation method thereof

Also Published As

Publication number Publication date
CN106745298B (en) 2018-11-30

Similar Documents

Publication Publication Date Title
Ahmed et al. Influence of yttrium ions on the magnetic properties of Ni–Zn ferrites
Kang et al. Magnetic properties of Ce–Mn substituted M-type Sr-hexaferrites
CN104496443A (en) High magnetic-energy-product M type calcium series permanent magnetic ferrite material and preparation method thereof
Kang et al. Enhancement of magnetic properties in Mn–Zn substituted M-type Sr-hexaferrites
CN106745298B (en) A method of enhancing M-type strontium ferrite magnetic performance
CN104529424B (en) A kind of have two-phase exchange coupling and keep the composite permanet magnet ferrite of high-coercive force
CN104692785A (en) High performance strontium-calcium permanent magnetic ferrite magnet and preparation method thereof
CN107382303A (en) A kind of preparation method and magnet of high-performance permanent-magnet ferrite magnet
CN103172360A (en) Plumbite type yttrium permanent magnetic ferrite material and preparation method thereof
KR20150105256A (en) Ferrite composition and motor having the same
Moon et al. Structural and magnetic properties of Ca-Mn-Zn-substituted M-type Sr-hexaferrites
WO2016165305A1 (en) Magnetic powder
CN104692786A (en) Low-radial shrinkage ratio permanent magnetic ferrite magnet and preparation method thereof
CN109311762A (en) Ferrite magnetic material and ferrite sintered magnet
Melagiriyappa et al. Structural and magnetic susceptibility studies of samarium substituted magnesium–zinc ferrites
CN107021746A (en) A kind of MnZn ferrite material and preparation method thereof
CN104496444A (en) Low-cost sintered permanent magnet ferrite material and preparation method thereof
JP2005505944A (en) Economical and improved properties of ferrite-type magnets
JP2015020926A (en) Ferrite compound
KR20150048256A (en) Magnet powders, production methods thereof, and magnets including the same
CN105439551A (en) High-magnetic-energy-product La-Co codoped strontium ferrite magnetic powder and preparation method thereof
CN107382300A (en) A kind of Ni-Zn soft magnetic ferrite material and preparation method thereof
Hossain et al. Influence of Li substitution on structural and magnetic properties of LixNi0. 2Mg0. 8− 2xFe2+ xO4
CN107010937A (en) One kind contains Cu2+W-type ferrite material and its preparation
CN109133896A (en) A kind of permanent-magnet ferrite material and preparation method thereof

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
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190612

Address after: 243000 No. 1618 Meishan Road, Ma'anshan Economic and Technological Development Zone, Anhui Province

Patentee after: MAANSHAN GAOKE MAGNETIC MATERIAL CO., LTD.

Address before: 243002 Huashan Road, Huashan District, Ma'anshan, Anhui Province, No. 59

Patentee before: Anhui University of Technology