CN107275027B - Using the cerium-rich rare earth permanent magnet and preparation method thereof of yttrium - Google Patents

Using the cerium-rich rare earth permanent magnet and preparation method thereof of yttrium Download PDF

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CN107275027B
CN107275027B CN201710330274.0A CN201710330274A CN107275027B CN 107275027 B CN107275027 B CN 107275027B CN 201710330274 A CN201710330274 A CN 201710330274A CN 107275027 B CN107275027 B CN 107275027B
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main phase
permanent magnet
yttrium
cerium
earth permanent
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CN107275027A (en
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严密
彭白星
金佳莹
马天宇
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Zhejiang University ZJU
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    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0573—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes obtained by reduction or by hydrogen decrepitation or embrittlement
    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0576—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together pressed, e.g. hot working
    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0266—Moulding; Pressing

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  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

The present invention discloses the cerium-rich rare earth permanent magnet and preparation method thereof using yttrium.Rare-earth permanent magnet prepared by the present invention contains the rich cerium main phase of a kind of RE-Fe-B main phase and one or more kinds of addition yttriums.After different main phases separately designs ingredient, ingredient and powder processed, corresponding main-phase alloy powder is proportionally uniformly mixed, then through magnetic field die mould, sintering and heat treatment, prepares the rare-earth permanent magnet with more main phase structures.By optimization sintering and heat treatment process, further alleviates magnetic dilution effect, improve the comprehensive magnetic energy of magnet.The present invention realizes extensive application of the yttrium in rare-earth permanent magnet, and the performance of permanent magnet can reach commercial standard, and the demand in market is also met while reducing the cost of raw material.

Description

Using the cerium-rich rare earth permanent magnet and preparation method thereof of yttrium
Technical field
The present invention relates to the cerium-rich rare earth permanent magnets and preparation method thereof of application yttrium
Background technique
In recent years, due to receiving the extensive concern of researchers at home and abroad, replace part Nd (neodymium) with Ce (cerium) element The rich Ce rare-earth permanent magnet prepared after element has been achieved for biggish progress.Although Ce2Fe14The intrinsic magnetic properties of B can (saturation magnetic Polarization intensity JS=1.17T, the different field H of magnetocrystallineA=26kOe) compare Nd2Fe14The intrinsic magnetic properties of B can (saturation magnetic polarization JS =1.60T, the different field H of magnetocrystallineA=73kOe) want it is weak very much, but researcher by optimization preparation process, change tradition Preparation method, weaken the generated serious magnetic dilution effect that Ce is added to after neodymium iron boron magnetic body significantly.And as in addition A kind of reserves are very high, and the lower rare earth element y of price (yttrium) but fails always to be applied in the production of rare-earth permanent magnet.So Y element is applied in the manufacture of permanent magnet, whether from reducing cost or balance for the angle that rare earth resources utilize all It is of great significance to.
Y2Fe14The different field H of the magnetocrystalline of B compoundAAt room temperature not only and Ce2Fe14B is close, but also has bigger Saturation magnetic polarization JS(1.41T) and higher Curie temperature TC(565K), 2:14:1 compound is since there is no 3d electricity The coupling of son and 4f electronics, is related generally in basic research.And Ce2Fe14The Curie temperature (424K) of B is all RE2Fe14It is minimum in B compound, so individually with the magnetic property ratio of the Sintered NdFeB magnet of Ce replacement part Nd element Magnet before not replacing will deteriorate very much, and be unfavorable for use of the magnet in complex environment.The present invention not only can be by Y member Element is widely applied into the manufacture of rare-earth permanent magnet, but also is able to maintain the magnetic property for even improving richness Ce magnet.In rare earth Price goes up all the way, and global Rare-earth Industry faces under the status of cost control problem, two kinds of high abundance rare earths is used in conjunction with, energy It is enough further reduced the usage amount of the rare earth elements such as praseodymium, neodymium, terbium, the dysprosium that price is high, abundance is low, effectively realizes the control of cost of material System.The utilization that rare earth resources can also be balanced so simultaneously, protects the rare earth resources of China's preciousness.
Summary of the invention
The purpose of the present invention is overcoming the shortcomings of yttrium for a long time to can not be applied in rare-earth permanent magnet, application is provided Cerium-rich rare earth permanent magnet of yttrium and preparation method thereof.
There are more main phase structures, including a kind of RE-Fe-B main phase and a kind of or more using the cerium-rich rare earth permanent magnet of yttrium The rich cerium main phase of kind addition yttrium.
The mass percent general formula of RE-Fe-B main phase ingredient is REaFe100-a-b-cMbBc, one or more addition yttrium The mass percent general formula of rich cerium main phase ingredient is [(YxCe1-x)yRE1-y]aFe100-a-b-cMbBc, in formula RE be Nd, Pr, Dy, One or more of Tb, Gd, Er, Ho, M Al, C, Co, Cr, Cu, F, Ga, Mn, Mo, N, Nb, Ni, P, Pb, S, Si, Ta, It is one or more of in Ti, V, Zr element；X, y, a, b, c meet following relationship: 0 < x≤0.6,0.01≤y < 1,28≤a≤33, 0.5≤b≤2,0.8≤c≤1.5.
The RE-Fe-B main phase accounts for the 10%~90% of main phase gross mass, and the rich cerium main phase of all addition yttriums accounts for main phase The 10%~90% of gross mass；When the rich cerium main phase comprising two or more addition yttrium in rare-earth permanent magnet, then respectively The rich cerium main phase ingredient of addition yttrium is different.
Preparation method using the cerium-rich rare earth permanent magnet of yttrium is specific as follows:
1) ingredient is carried out respectively according to the main phase ingredient of design, be higher than 10 in vacuum degree-2In the vacuum medium frequency induction furnace of Pa Melting difference main-phase alloy obtains the different main-phase alloy rejection tablets with a thickness of 0.2~0.5mm using strip cast alloys technology, then By the quick-fried corresponding main-phase alloy powder for being 3~4 μm with jet milling process preparation average particle size of hydrogen；
2) corresponding main-phase alloy powder is proportionally uniformly mixed, obtains the mixing main phase powder of different Y-Ce substitution amount End；
3) mixing main phase powder is subjected under the magnetic field of 1.5~2T orientation die mould, obtains green compact；
4) obtained green compact are subjected to Vacuum Package, 1~3min of isostatic cool pressing between 15~20MPa is put into high vacuum positive pressure Sintering furnace is sintered 2.5~5h between 1000~1080 DEG C, level-one tempering is carried out between 850~950 DEG C, is carried out between 480~680 DEG C Second annealing obtains rare-earth permanent magnet.
The present invention has the advantages that 1) present invention solves yttrium for a long time to answer compared with prior art The problem in rare-earth permanent magnet is used, extensive application of the yttrium in rare-earth permanent magnet is realized；2) by rich cerium main phase The higher yttrium of abundance is added in alloy, the magnetic property of rich cerium main phase has been maintained or even increased, so that the magnetic of permanent magnet Performance reaches commercial standard, can carry out widely production application；3) the cerium-rich rare earth permanent magnetism provided by the present invention using yttrium The preparation method of body selects suitable sintering process and process of thermal treatment according to the different characteristics of each rare earth element, makes magnet Further growing up for main phase grain is prevented while full densification again, meets actual application demand；4) by addition The rich cerium main phase ingredient of yttrium carries out the optimization design of alloying element, magnetic dilution effect is further suppressed, in higher yttrium and cerium content When magnet be also able to maintain good magnetic property；5) by the lower rare earth element yttrium of applied cost and cerium, original is had effectively achieved Expect the control of cost, while decreasing the usage amount of the rare earth elements such as praseodymium, neodymium, terbium, dysprosium, the rare earth of China's preciousness is protected to provide Source.
Specific embodiment
There are more main phase structures, including a kind of RE-Fe-B main phase and a kind of or more using the cerium-rich rare earth permanent magnet of yttrium The rich cerium main phase of kind addition yttrium；
The mass percent general formula of RE-Fe-B main phase ingredient is REaFe100-a-b-cMbBc, one or more addition yttrium The mass percent general formula of rich cerium main phase ingredient is [(YxCe1-x)yRE1-y]aFe100-a-b-cMbBc, in formula RE be Nd, Pr, Dy, One or more of Tb, Gd, Er, Ho, M Al, C, Co, Cr, Cu, F, Ga, Mn, Mo, N, Nb, Ni, P, Pb, S, Si, Ta, It is one or more of in Ti, V, Zr element；X, y, a, b, c meet following relationship: 0 < x≤0.6,0.01≤y < 1,28≤a≤33, 0.5≤b≤2,0.8≤c≤1.5.
The RE-Fe-B main phase accounts for the 10%~90% of main phase gross mass, and the rich cerium main phase of all addition yttriums accounts for main phase The 10%~90% of gross mass；When the rich cerium main phase comprising two or more addition yttrium in rare-earth permanent magnet, then respectively The rich cerium main phase ingredient of addition yttrium is different.
Preparation method using the cerium-rich rare earth permanent magnet of yttrium is specific as follows:
1) ingredient is carried out respectively according to the main phase ingredient of design, be higher than 10 in vacuum degree-2In the vacuum medium frequency induction furnace of Pa Melting difference main-phase alloy obtains the different main-phase alloy rejection tablets with a thickness of 0.2~0.5mm using strip cast alloys technology, then By the quick-fried corresponding main-phase alloy powder for being 3~4 μm with jet milling process preparation average particle size of hydrogen；
2) corresponding main-phase alloy powder is proportionally uniformly mixed, obtains the mixing main phase powder of different Y-Ce substitution amount End；
3) mixing main phase powder is subjected under the magnetic field of 1.5~2T orientation die mould, obtains green compact；
4) obtained green compact are subjected to Vacuum Package, 1~3min of isostatic cool pressing between 15~20MPa is put into high vacuum positive pressure Sintering furnace is sintered 2.5~5h between 1000~1080 DEG C, level-one tempering is carried out between 850~950 DEG C, is carried out between 480~680 DEG C Second annealing obtains rare-earth permanent magnet.
The present invention will be further described combined with specific embodiments below, but the present invention is not limited only to following implementation Example:
Embodiment 1:
1) it is calculated in mass percent, ingredient is [(Y0.2Ce0.8)0.5Nd0.5]30.5Fe67.11Co0.8Zr0.59B1Main phase A and Nd30.5Fe67.11Co0.8Zr0.59B1Main phase B distinguish ingredient, vacuum degree be higher than 10-2After the vacuum medium frequency induction furnace melting of Pa, Corresponding main phase rejection tablet with a thickness of 0.31mm is obtained using strip cast alloys technology；
2) by corresponding main phase rejection tablet by the quick-fried respective alloy powder for being 3.3 μm with jet milling process preparation average particle size of hydrogen End；
3) according to the mass ratio of 3:7 by A, B main-phase alloy powder after evenly mixing, under nitrogen protection will mix main phase powder End oriented moulding under the magnetic field of 2T, and green compact are made through 17MPa isostatic cool pressing；
4) green compact are placed in vacuum sintering furnace and are sintered, sintering temperature is 1075 DEG C, sintering time 3h, at 890 DEG C Between carry out level-one tempering, carry out second annealing between 560 DEG C, obtain rare-earth permanent magnet.
5) magnet magnetic property is Br=13.2kGs, Hcj=11.8kOe, (BH)max=43.6MGOe.
Comparative example 1:
1) it is calculated in mass percent, ingredient is (Ce0.5Nd0.5)30.5Fe68.5B1Main phase A and Nd30.5Fe68.5B1Main phase B Ingredient respectively is higher than 10 in vacuum degree-2After the vacuum medium frequency induction furnace melting of Pa, using strip cast alloys technology obtain with a thickness of The corresponding main phase rejection tablet of 0.31mm；
2) by corresponding main phase rejection tablet by the quick-fried respective alloy powder for being 3.3 μm with jet milling process preparation average particle size of hydrogen End；
3) according to the mass ratio of 3:7 by A, B main-phase alloy powder after evenly mixing, under nitrogen protection will mix main phase powder End oriented moulding under the magnetic field of 2T, and green compact are made through 17MPa isostatic cool pressing；
4) green compact are placed in vacuum sintering furnace and are sintered, sintering temperature is 1080 DEG C, sintering time 3h, at 890 DEG C Between carry out level-one tempering, carry out second annealing between 580 DEG C, obtain rare-earth permanent magnet.
5) magnet magnetic property is Br=12.8kGs, Hcj=11.4kOe, (BH)max=41.8MGOe；
Illustrate: by the comparison of comparative example 1 and embodiment 1 it can be found that adding each of the rich cerium magnet of yttrium in embodiment 1 Item magnetic property index is all better than the magnet in comparative example, and further illustrating the present invention not only realizes yttrium in rare earth permanent magnet Application in body, and the magnetic property of rich cerium magnet can be improved.And the comprehensive magnetic of magnet can also reach the commercial trade mark Standard, reduce the cost of raw material, meet application demand.Meanwhile by comparison, it was found that, in (embodiment 1) of the invention The improvement optimization of the optimization design and heat treatment process of composition alloy element is all to ensure the higher reason of magnet performance.
Embodiment 2:
1) it is calculated in mass percent, ingredient is [(Y0.25Ce0.75)0.6Nd0.4]30.2Fe67.45Co0.8Ga0.55B1Main phase A, Ingredient is [(Y0.25Ce0.75)0.4Nd0.6]30.2Fe67.45Co0.8Ga0.55B1Main phase B and ingredient be Nd30.2Fe67.45Co0.8Ga0.55B1Main phase C distinguish ingredient, vacuum degree be higher than 10-2After the vacuum medium frequency induction furnace melting of Pa, Corresponding main phase rejection tablet with a thickness of 0.33mm is obtained using strip cast alloys technology；
2) by corresponding main phase rejection tablet by the quick-fried respective alloy powder for being 3.1 μm with jet milling process preparation average particle size of hydrogen End；
3) according to the mass ratio of 2:2:1 by A, B and C main-phase alloy powder after evenly mixing, under nitrogen protection will mixing Main phase powder oriented moulding under the magnetic field of 2T, and green compact are made through 17MPa isostatic cool pressing；
4) green compact are placed in vacuum sintering furnace and are sintered, sintering temperature is 1080 DEG C, sintering time 3h, at 890 DEG C Between carry out level-one tempering, carry out second annealing between 560 DEG C, obtain rare-earth permanent magnet；
5) magnet magnetic property is Br=12.7kGs, Hcj=8.8kOe, (BH)max=36.1MGOe.
Embodiment 3:
1) it is calculated in mass percent, ingredient is [(Y0.3Ce0.7)0.5Nd0.5]30.5Fe67.11Co1.39B1Main phase A and Nd30.5Fe67.11Co1.39B1Main phase B distinguish ingredient, vacuum degree be higher than 10-2After the vacuum medium frequency induction furnace melting of Pa, use Strip cast alloys technology obtains the corresponding main phase rejection tablet with a thickness of 0.31mm；
2) by corresponding main phase rejection tablet by the quick-fried respective alloy powder for being 3.3 μm with jet milling process preparation average particle size of hydrogen End；
3) according to the mass ratio of 1:4 by A, B main-phase alloy powder after evenly mixing, under nitrogen protection will mix main phase powder End oriented moulding under the magnetic field of 2T, and green compact are made through 17MPa isostatic cool pressing；
4) green compact are placed in vacuum sintering furnace and are sintered, sintering temperature is 1075 DEG C, sintering time 3h, at 890 DEG C Between carry out level-one tempering, carry out second annealing between 580 DEG C, obtain rare-earth permanent magnet.
5) magnet magnetic property is Br=13.5kGs, Hcj=12.1kOe, (BH)max=45.1MGOe.

Claims (1)

1. the cerium-rich rare earth permanent magnet of application yttrium, it is characterised in that: the permanent magnet has more main phase structures, including a kind of RE-Fe- The rich cerium main phase of B main phase and a variety of addition yttriums, wherein RE-Fe-B main phase accounts for the 10% ~ 90% of main phase gross mass, all addition yttriums Rich cerium main phase accounts for the 10% ~ 90% of main phase gross mass；
The mass percent general formula of RE-Fe-B main phase ingredient is REaFe100-a-b-cMbBc, the rich cerium main phase ingredient of a variety of addition yttriums Mass percent general formula be [(YxCe1-x)yRE1-y]aFe100-a-b-cMbBc, RE is in Nd, Pr, Dy, Tb, Gd, Er, Ho in formula One or more, one in M Al, C, Co, Cr, Cu, F, Ga, Mn, Mo, N, Nb, Ni, P, Pb, S, Si, Ta, Ti, V, Zr element Kind is several；X, y, a, b, c meet following relationship: 0 < x≤0.6,0.01≤y < 1,28≤a≤33,0.5≤b≤2,0.8≤c ≤1.5；When the rich cerium main phase comprising two or more addition yttrium in rare-earth permanent magnet, then the rich cerium master of yttrium is respectively added Y is different in phase constituent, 0.6≤y < 1 in the rich cerium main phase ingredient of one of which addition yttrium.
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CN108022708B (en) * 2017-12-20 2019-01-22 包头金山磁材有限公司 A kind of rich cerium yttrium Nd-Fe-B permanent magnet and preparation method thereof being sintered argentiferous
CN110364325B (en) * 2018-04-09 2021-02-26 有研稀土新材料股份有限公司 Yttrium-added rare earth permanent magnet material and preparation method thereof
CN108766703A (en) * 2018-06-08 2018-11-06 江西理工大学 A kind of more main phase high abundance rare earth permanent-magnetic materials of high temperature resistant and preparation method thereof
CN109585112B (en) * 2018-11-23 2021-10-12 钢铁研究总院 High-performance rare earth permanent magnetic material with improved crystal structure
CN111161949B (en) * 2019-12-31 2022-02-11 浙江大学 YCe co-doped nanocrystalline rare earth permanent magnet and preparation method thereof
CN112071544A (en) * 2020-08-20 2020-12-11 钢铁研究总院 Low-density Y-containing permanent magnet and preparation method thereof
CN113782292B (en) * 2021-06-04 2022-06-10 钢铁研究总院 Yttrium cerium-based rare earth permanent magnetic material with improved temperature stability

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103794323A (en) * 2014-01-18 2014-05-14 浙江大学 Commercial rare earth permanent magnet produced from high-abundance rare earth and preparing method thereof
CN105225781A (en) * 2015-10-27 2016-01-06 钢铁研究总院 A kind of high corrosion-resistant many Hard Magnetics principal phase Ce permanent magnet and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103123839B (en) * 2013-01-30 2015-04-22 浙江大学 Rare earth permanent magnet produced by applying abundant rare earth cerium (Ce) and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103794323A (en) * 2014-01-18 2014-05-14 浙江大学 Commercial rare earth permanent magnet produced from high-abundance rare earth and preparing method thereof
CN105225781A (en) * 2015-10-27 2016-01-06 钢铁研究总院 A kind of high corrosion-resistant many Hard Magnetics principal phase Ce permanent magnet and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Improved thermal stability of Nd-Ce-Fe-B sintered magnets by Y substitution;Baixing Peng;《Scripta Materialia》;20170401;正文第1页第2栏最后1段-第2页第1栏第1段

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