CN1113964A - Rare-earth permanent magnetic material using 1:12 type compound as main phase - Google Patents
Rare-earth permanent magnetic material using 1:12 type compound as main phase Download PDFInfo
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- CN1113964A CN1113964A CN 94110243 CN94110243A CN1113964A CN 1113964 A CN1113964 A CN 1113964A CN 94110243 CN94110243 CN 94110243 CN 94110243 A CN94110243 A CN 94110243A CN 1113964 A CN1113964 A CN 1113964A
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- compound
- magnetic material
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- rare earth
- rare
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 29
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 15
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 15
- 239000000696 magnetic material Substances 0.000 title claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- 229910052799 carbon Chemical group 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 150000003624 transition metals Chemical group 0.000 claims abstract description 11
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 10
- 229910052772 Samarium Inorganic materials 0.000 claims description 6
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 2
- 229910052693 Europium Inorganic materials 0.000 claims description 2
- 229910052689 Holmium Inorganic materials 0.000 claims description 2
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 2
- 229910052771 Terbium Inorganic materials 0.000 claims description 2
- 229910052775 Thulium Inorganic materials 0.000 claims description 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052787 antimony Inorganic materials 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 238000005121 nitriding Methods 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- 229910052716 thallium Inorganic materials 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 238000005255 carburizing Methods 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005551 mechanical alloying Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 238000001683 neutron diffraction Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The said permanent magnetic material uses R(FeT)12-yXy compound as main phase, where R is rare earth, T is transition metal, X is boron and/or carbon, y lies between 0.05 to 4.0, the ranges of alloy ingredients are rare earth 4.0-10.0 at%, iron and other transition metal 61.0-95.0 at%, carbon and/or boron 0.385-30.5 at%. Said invention provides a kind of rare erth permanent magnetic material using 1:12 mode compound as main phase, compared to the available 1:12 mode compound, said invented material possesses of even better magnetic property.
Description
The present invention relates to rare earth permanent-magnetic material, particularly the rare earth permanent-magnetic material that is principal phase with 1: 12 type compound.
Although the Nd-Fe-B permanent magnet has good magnetic performance such as high saturated magnetic energy product, the weakness that its Curie temperature is low has limited the range of application of this material.The clear 62-170455 of patent JP of for example relevant Nd-Fe-B, the clear 62-151541 of JP, the clear 62-152108 of JP, the clear 62-149108 of JP, the clear 61-139641 of JP, the clear 62-124702 of JP, the clear 60-159152 of JP, the clear 60-204862 of JP, the clear 60-144906 of JP, the clear 60-31208 of JP, the clear 62-177149 of JP, the clear 62-174905 of JP etc.
In recent years, the progress of exploration novel permanent magnetic material is rapid in the world wide.But relevant work mainly concentrates on 2: 17,2: 14: 1 type ternary compounds.R wherein
2Fe
17N
xApplication.The research work of this respect remains a new breakthrough.
Pure RFe
12Compound can not form usually, needs some other filtering metal element tis of interpolation, V, Cr, Mo, Si etc. to form.Because the interpolation of nonmagnetic elements causes the reduction of the magnetic of this compound.
The object of the present invention is to provide a kind of rare earth permanent-magnetic material that is principal phase with 1: 12 type compound, its more existing 1: 12 type compound has better magnetic property.
The invention provides a kind of rare earth permanent-magnetic material that is principal phase with 1: 12 type compound, it is characterized in that this permanent magnet material is with R(FeT)
12-yX
yCompound is a principal phase, and its middle-weight rare earths R is Y, Ce, Pr, Nd, Pn, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, arbitrary element or several elements among the Lu.Other transition metal T is Sc, Ti, and V, Br, Mn, Co, Ni, Cu, Zn, Ga, Al, Si, Ge, Zr, Nb, Mo, Sn, Sb, Ta, W, Tl, arbitrary element or several elements among the Bi, X is boron and/or carbon, and y is 0.05 between 0.05～4.0, and the composition scope of its alloy exists:
Rare earth: 4.0～10.0at%
Iron and other transition metal: 61.0～95.0at%
Carbon and (or) boron: 0.385～30.5at%
With pure rare earth, pure iron, pure transition metal, pure carbon or pure boron (or iron carbon or ferroboron), consider the substitution effect of carbon and boron, by the back melting of 1: 12 composition batching, get final product to such an extent that principal phase is R(FeT)
12-yX
yAlloy, through 800～1100 ℃ handle got final product in 1～30 day single-phase compound.Then can obtain principal phase as initial composition near above-mentioned standard component is R(FeT)
12-yX
yAlloy.Be single-phase or the heterogenetic sample all can be used as the original material of good permanent magnet material.The preparation of permanent magnet can be by powder sintered, fast quenching or the preparation of mechanical alloying method.The present invention stablizes 1: 12 mutually owing to substitute transition metal atoms with carbon and boron as stable element, and every magnetic property of 1: 12 phase is generally improved, and below by embodiment in detail the present invention is described in detail.
Accompanying drawing 1 is YFe
10V
1.5C
0.5And SmFe
10V
1.5C
0.5The X-ray spectral line of compound;
Accompanying drawing 2 is YFe
10V
1.5C
0.5And SmFe
10V
1.5C
0.5The ac magnetization rate curve of compound;
Accompanying drawing 4 is NdFe
10Mo
1.5C
0.5The specific magnetising moment temperature curve of compound;
Accompanying drawing 5 is NdFe
10V
1.5B
0.5And SmFe
10V
1.5B
0.5The X-ray spectral line of compound;
Accompanying drawing 6 is SmFe
10V
1.5B
0.5The magnetzation curve of compound 4.2K.
By the back melting of above-mentioned composition batching, can get principal phase is RFe with pure rare earth, pure iron, pure transition metal, pure carbon
10T
1.5C
0.5Alloy, handle to obtain single-phase compound in 1～30 day through 800～1100 ℃, Sm wherein, Y compounds X spectral line are seen Fig. 1.It has high Curie temperature as seen from Figure 2.Fig. 3 shows that it has high saturation magnetization and magneticanisotropy.Fig. 4 shows NdFe
10Mo
1.5C
0.5Compound has one from executing the reorientation transformation.
By the back melting of above-mentioned composition batching, can get principal phase is RFe with pure rare earth, pure iron, pure transition metal, pure boron
10T
1.5B
0.5Alloy, through 800～1100 ℃, handle obtaining single-phase compound in 1～30 day and see Fig. 5, it has high saturation magnetization and magneticanisotropy as seen from Figure 6.
The sample method for making is tested YFe with neutron diffraction with embodiment 1
11.01Ti
0.805C
0.189And YFe
11.17Ti
0.8915B
0.4385The atom occupy-place of compound determines, draws carbon and boron atom and occupies (8i) and (8f) alternative site, substitutes transition metal atoms.Only have on a small quantity to occupy (2b) interstitial site, lattice parameter is a=0.8565nm respectively, c=0.4821nm; A=0.8552nm, c=0.4815nm.
At first make with SmFe with embodiment 1 described method
10Ti
1.5C
0.5Be the alloy of base, adopt the way of ball milling, its granularity is reached below 200 orders.Through magnetic property measure T
c=360 ℃, M
r=1.05KGs,
iH
c=9.5KOe, (BH)
Max=18MGOe.
To contain mishmetal and other raw material of Ce, Sm, Nd, Pn, Gd and Dy etc., be mixed with sample, can make Curie temperature Tc=400 ℃, remanent magnetism M by above-mentioned composition
r=8.5KGs, coercive force
iH
c〉=20KOe, magnetic energy product (BH)
MaxThe magnetic of=12.5MGOe.
Embodiment 6 SmFe
11Ti
0.2V
0.3B
0.5Permanent magnetism
Raw material is mixed with sample by above-mentioned composition, can makes Curie temperature Tc=380 ℃ by grinding technics, remanent magnetism M
r=10.5KGs, coercive force
iH
c=9KOe, magnetic energy product (BH)
MaxThe magnetic of=20MGOe.
Embodiment 7 SmFe
10VB
0.5C
0.5The permanent magnetism performance
Raw material is mixed with sample by above-mentioned composition, presses powder metallurgical sintering process, can get Curie temperature T
c=350 ℃, remanent magnetism Mr=10.5KGs, coercive force
iH
c=11KOe, magnetic energy product (BH)
MaxThe permanent magnet of＞18.5MGOe.
Raw material is mixed with sample by above-mentioned composition, and the method that adopts powder to grind nitriding has obtained T
c=470 ℃, M
r=1.0KGs,
iH
c=8.8KOe, (BH)
Max=15.5MGO
eMagnetic.
Comparative example
With RFe
10V
1.5C
0.5, RFe
10V
1.5B
0.5With RFe
10V
2The structure and the magnetic of compound compare, and as table 1 and table 2, the compound that as seen contains 1: 2 type of magnetic boron has good intrinsic magnetic properties.
Table 1
R alloy character constant T
c△ T
c
a(A) c(A) (K) (K)
Sm Sm(FeVC)
128.5351 4.7726 612 9
Sm(FeVB)
128.535 4.7715 632 29
SmFe
10V
28.5363 4.7722 603
Y Y(FeVC)
128.4936 4.7718 547 13
Y(FeVB)
128.5073 4.7526 568 34
YFe
10V
28.4949 4.7722 534
Table 2
Alloy Ms μ
Rμ
Feμ
MB
AB
FOMP
(μ
B/f.u) (μ
B) (μ
B) (μ
B) (T) (T)
Sm(FeVC)
1219.25 0.71 1.857 1.54 18 11.0
Sm(FeVB)
1219.2 0.71 1.85 1.54 22 11.5
SmFe
10V
219.2 0.71 1.85 1.54 15 11.0
Y(FeVC)
1216.42 0 1.642 1.37 4.5
Y(FeVB)
1216.9 0 1.69 1.4 4.2
YFe
10V
215.9 0 1.59 1.3 3.6
Claims (2)
1, a kind of rare earth permanent-magnetic material that is principal phase with 1: 12 type compound is characterized in that this permanent magnet material is with R (FeT)
12-yX
yCompound is a principal phase, and its middle-weight rare earths R is Y, Ce, Pr, Nd, Pn, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, arbitrary element or several elements among the Lu.Other transition metal T is Sc, Ti, and V, Br, Mn, Co, Ni, Cu, Zn, Ga, Al, Si, Ge, Zr, Nb, Mo, Sn, Sb, Ta, W, Tl, arbitrary element or several elements among the Bi, X is boron and/or carbon, and y is between 0.05～4.0, and the composition scope of its alloy exists:
Rare earth: 4.0～10.0at%;
Iron and other transition metal: 61.0～95.0at%
Carbon and (or) boron: 0.385～30.5at%.
2, a kind of rare earth permanent-magnetic material is characterized in that: this permanent magnet material system serves as base through nitriding, oozes magnetic or magnet that hydrogen, carburizing form the new compound preparation with the described permanent magnet material of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110243 CN1054889C (en) | 1994-05-10 | 1994-05-10 | Rare-earth permanent magnetic material using 1:12 type compound as main phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110243 CN1054889C (en) | 1994-05-10 | 1994-05-10 | Rare-earth permanent magnetic material using 1:12 type compound as main phase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1113964A true CN1113964A (en) | 1995-12-27 |
| CN1054889C CN1054889C (en) | 2000-07-26 |
Family
ID=5034228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110243 Expired - Fee Related CN1054889C (en) | 1994-05-10 | 1994-05-10 | Rare-earth permanent magnetic material using 1:12 type compound as main phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054889C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061460C (en) * | 1997-08-01 | 2001-01-31 | 罗阳 | Carbide permanent magnet and its prepn. method |
| CN104444753A (en) * | 2014-11-17 | 2015-03-25 | 常熟市永固起重设备安装工程有限公司 | Magnetic crane |
-
1994
- 1994-05-10 CN CN 94110243 patent/CN1054889C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061460C (en) * | 1997-08-01 | 2001-01-31 | 罗阳 | Carbide permanent magnet and its prepn. method |
| CN104444753A (en) * | 2014-11-17 | 2015-03-25 | 常熟市永固起重设备安装工程有限公司 | Magnetic crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1054889C (en) | 2000-07-26 |
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