CN101086912A - A FeGa-RE magnetic-driven flexible materials and its making technology - Google Patents
A FeGa-RE magnetic-driven flexible materials and its making technology Download PDFInfo
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Abstract
The invention relates to a FeGa-RE magnetostrictive material and manufacturing technique. The characteristics of magnetostrictive material are that: the ingredient of material consists of Fe, Ga and RE, the content of Ga is 10-40at%, the content of RE is 0.01-20at%, the content of additional intermingle is: C=200-600ppm,N=200-600ppm,O=200-700ppm,other is Fe, the optimal value of Ga is 12-28at%, FeGa-RE magnetostrictive material, the ingredient of material adds one or more kinds of La, Ce, Pr, Nd, Tb, Dy whose content is 0.01-20at%. The manufacturing technique includes the alloy with purified material is cast as the needed round bar, and the alloy bar is crystallized by high temperature gradient flash freezing method and Bridgman method.
Description
Technical field:
The present invention relates to a kind of FeGa-RE series magnetostriction material and manufacturing process thereof, belong to field of magnetic material.
Background technology:
When ferromagnetic substance changed at magnetized state, small variation also took place in the length of himself.This phenomenon is called as magnetostriction.Nearly all ferrimagnet all has Magnetostrictive Properties.Magnetostrictive size is represented with magnetostriction coefficient λ, is defined as λ=Δ L/L (L is the material sample original length, the variation that sample took place when Δ L was the magnetized state change).Early stage magnetostrictive material are Ni and Fe base alloy, have favorable mechanical performance and Hang Zhen ability, but its magnetostriction poor-performing, and λ is (1ppm=10 about 40-100ppm generally
-6), so the scope of application is restricted.People had invented a kind of electromagnetism again and had caused telescopic material afterwards, were commonly referred to piezoelectric ceramic (PZT) material, though the λ of this material than higher, can reach 300ppm, high frequency characteristics is also relatively good, but because this material is more crisp, is easy in the practicality damage.The eighties in 20th century, people such as U.S. Clark have invented a kind of giant magnetostrictive material of forming with rare earth and Fe, and as the TbDyFe alloy, it consists of (Dy
xTb
1-x) Fe
2, having very big magnetostriction and high Curie temperature, the λ s of its monocrystal is up to 2000ppm.This material also has some other advantages except that high λ s, good as low frequency characteristic, response speed is fast, the energy density height, and the thrust of generation is big, and conversion efficiency is high, and therefore this material has the comparison application fields.We are also obtaining breakthrough achievement in research aspect this material, on the composition of material and manufacture method innovation are arranged all, and have obtained national inventing patent, patent No. ZL 03127241.X.Yet this rare earth ultra-magnetostriction material also has its shortcoming, the one, the high saturation magnetic field of requirement, the 2nd, the fragility of material is bigger, and manufacturing process is restricted and processing charges is high, the 3rd, raw-material cost very high (because price height of terbium and dysprosium), so its application is subjected to very big resistance.
Summary of the invention:
Purpose of the present invention will provide a kind of magnetostriction performance than higher exactly, and mechanical property is relatively good, and price is relatively more cheap again, FeGa-RE series magnetostriction material and the manufacturing process thereof that can work under low magnetic field.
FeGa-RE series magnetostriction material of the present invention, the composition that it is characterized in that material mainly is made up of Fe, Ga and RE, the content of Ga is 10-40at%, RE content is 0.01-20at%, additional doping content is: C=200-600ppm, N=200-600ppm, 0=200-700ppm, surplus is Fe, the preferred value of Ga composition is 12-28at% in the material, the FeGa-RE series magnetostriction material has added among La, Ce, Pr, Nd, Tb, the Dy one or more in the composition of its material, content is 0.01-20at%.
The preferred value of La composition is 0.1-10at% in above-mentioned Fe-Ga-RE series magnetostriction material, the preferred value of Ce composition is 0.1-10at%, the preferred value of Pr composition is 0.1-8at%, the preferred value of Nd composition is 0.1-6at%, the preferred value of Tb composition is 0.1-8at%, and the preferred value of Dy composition is 0.1-6at%.
Aforesaid FeGa-RE series magnetostriction material, on crystal texture: polycrystal is＜100〉and＜110〉preferred orientation texture.
Above-mentioned FeGa-RE series magnetostriction material manufacturing process is characterized in that its processing step is:
A) prepare burden by designed composition;
B) with vacuum suspension smelting furnace or vacuum non-consumable arc furnace smelting nut alloy: be evacuated to 3.0 * 10 earlier
-2~ 5.0 * 10
-2Pa, charge into ar purging after, be evacuated to 3.0 * 10 again
-3~ 5.0 * 10
-3Pa charges into argon gas heating again to the normal pressure then, makes the raw material fusing form alloy, molten clear back refining 2-4 minute, and melt back 3-5 time, the uniformity with the assurance alloying component pours into needed pole with the alloy after the refining;
C) with the alloy bar cleaned out with high-temperature gradient rapid solidification method or czochralski method or Bridgman method, carry out epitaxis, by the ratio of adjusting temperature gradient GL and speed of growth V obtain＜100 and＜110 crystal orientation;
D) orientation after material in 900 ~ 1200 ℃, handle 1 ~ 24 hour after, stove be chilled to 800 ~ 600 ℃ be incubated 0.5-24 hour again after, adopt shrend again, stove is cold or air cooling to room temperature.
The advantage of invention:
1. the magnetostriction performance of composition alloy of the present invention is relatively good, has higher λ s (more than the 300ppm) under downfield, is very beneficial for practical application.
2. by adding rare earth element, the mechanical property of material is improved greatly, make the crystal grain of material obtain refinement simultaneously.
3. the process conditions requirement is not harsh, owing to do not contain easy oxidation element in the alloy of the present invention, so in smelting, directional solidification and the heat treatment process of alloy, needn't take special anti-oxidation measure.
4. the production cost of material of the present invention is low.
Embodiment:
Embodiment 1. compositions are Fe
83Ga
17The alloy of Dy is smelted with the vacuum suspension smelting furnace, and regulating vacuum degree is 3.0 * 10
-3~ 5.0 * 10
-3Pa; feed high-purity argon gas then and do protective gas; melt back makes for 3-5 time alloying component even; be cast into rod then; carry out crystal orientation with the high-temperature gradient directional solidification stove, regulating epitaxis speed is 420mm/h, the crystal orientation sample is carried out 1100 ℃ at vacuum heat treatment furnace handled 2 hours; stove is chilled to 750 ℃ of insulations 1 hour, and after wind is chilled to room temperature.The magnetostriction coefficient λ s of sample is 270ppm, and yield strength is 540MPa.
Embodiment 2. compositions are Fe
83Ga
17The alloy of Tb is smelted with vacuum non-consumable arc furnace, and regulating vacuum degree is 3.0 * 10
-3~ 5.0 * 10
-3Pa; feed high-purity argon gas then and do protective gas; melt back makes for 3-5 time alloying component even; be cast into rod then; carry out crystal orientation with the high-temperature gradient directional solidification stove, regulating epitaxis speed is 500mm/h, the crystal orientation sample is carried out 1120 ℃ at vacuum heat treatment furnace handled 2 hours; stove is chilled to 700 ℃ of insulations 2 hours, and back shrend is to room temperature.The magnetostriction coefficient λ s of sample is 310ppm, and yield strength is 987MPa.
Embodiment 3. compositions are Fe
83Ga
17The alloy of La is smelted with the vacuum suspension smelting furnace, and regulating vacuum degree is 3.0 * 10
-3~ 5.0 * 10
-3Pa; feed high-purity argon gas then and do protective gas; melt back makes for 3-5 time alloying component even; be cast into rod then; carry out crystal orientation with the high-temperature gradient directional solidification stove, regulating epitaxis speed is 480mm/h, the crystal orientation sample is carried out 1100 ℃ at vacuum heat treatment furnace handled 1 hour; stove is chilled to 720 ℃ of insulations 2 hours, and after wind is chilled to room temperature.The magnetostriction coefficient λ s of sample is 260ppm, and yield strength is 483MPa.
Embodiment 4. compositions are Fe
85Ga
15Tb
0.5Alloy, smelt with vacuum non-consumable arc furnace, regulating vacuum degree is 3.0 * 10
-3~ 5.0 * 10
-3Pa; feed high-purity argon gas then and do protective gas; melt back makes for 3-5 time alloying component even; be cast into rod then; carry out crystal orientation with the high-temperature gradient directional solidification stove, regulating epitaxis speed is 500mm/h, the crystal orientation sample is carried out 1150 ℃ at vacuum heat treatment furnace handled 2 hours; stove is chilled to 750 ℃ of insulations 3 hours, and back shrend is to room temperature.The magnetostriction coefficient λ s of sample is 276ppm, and yield strength is 856MPa.
Claims (4)
1, a kind of FeGa-RE series magnetostriction material, it is characterized in that: the composition of material mainly is made up of Fe, Ga and RE, the content of Ga is 10-40at%, RE content is 0.01-20at%, additional doping content is: C=200-600ppm, N=200-600ppm, O=200-700ppm, surplus is Fe, the preferred value of Ga composition is 12-28at% in the material, added among La, Ce, Pr, Nd, Tb, the Dy one or more in the composition of FeGa-RE series magnetostriction material, content is 0.01-20at%.
2, FeGa-RE series magnetostriction material according to claim 1, it is characterized in that: the preferred value of La composition is 0.1-10at%, the preferred value of Ce composition is 0.1-10at%, the preferred value of Pr composition is 0.1-8at%, the preferred value of Nd composition is 0.1-6at%, the preferred value of Tb composition is 0.1-8at%, and the preferred value of Dy composition is 0.1-6at%.
3, FeGa-RE series magnetostriction material according to claim 1 is characterized in that: on crystal texture: polycrystal is＜100〉and＜110〉preferred orientation texture.
4, according to the manufacturing process of claim 1 or 2 or 3 described FeGa-RE series magnetostriction materials, it is characterized in that: concrete processing step is:
A) prepare burden by designed composition;
B) with vacuum suspension smelting furnace or vacuum non-consumable arc furnace smelting nut alloy: be evacuated to 3.0 * 10 earlier
-2~ 5.0 * 10
-2Pa, charge into ar purging after, be evacuated to 3.0 * 10 again
-3~ 5.0 * 10
-3Pa charges into argon gas heating again to the normal pressure then, makes the raw material fusing form alloy, molten clear back refining 2-4 minute, and melt back 3-5 time, the uniformity with the assurance alloying component pours into needed pole with the alloy after the refining;
C) with alloy bar high-temperature gradient rapid solidification method or czochralski method or the Bridgman method cleaned out, carry out epitaxis, by adjusting temperature gradient G
LObtain with the ratio of speed of growth V＜100 and＜110 crystal orientation;
D) orientation after material in 900 ~ 1200 ℃, handle 1 ~ 24 hour after, stove be chilled to 800 ~ 600 ℃ be incubated 0.5-24 hour again after, adopt shrend again, stove is cold or air cooling to room temperature.
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| CNB2007101014980A CN100463083C (en) | 2007-04-24 | 2007-04-24 | A FeGa-RE magnetic-driven flexible materials and its making technology |
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| CNB2007101014980A CN100463083C (en) | 2007-04-24 | 2007-04-24 | A FeGa-RE magnetic-driven flexible materials and its making technology |
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| CN101824578A (en) * | 2010-03-12 | 2010-09-08 | 瑞科稀土冶金及功能材料国家工程研究中心有限公司 | Iron-based magnetostrictive alloy wire and production method thereof |
| CN102816973A (en) * | 2012-05-18 | 2012-12-12 | 内蒙古工业大学 | NiMnFeGaAl-RE series magnetostriction material and preparation method thereof |
| CN103320682A (en) * | 2013-02-28 | 2013-09-25 | 瑞科稀土冶金及功能材料国家工程研究中心有限公司 | High-performance quick-quenching Fe-Ga based magnetostriction thin strip material and preparation technology thereof |
| CN104200946A (en) * | 2014-08-20 | 2014-12-10 | 钢铁研究总院 | FeAl magnetically soft alloy with high magnetostriction coefficient |
| CN104947194A (en) * | 2015-05-04 | 2015-09-30 | 北京航空航天大学 | Magnetostrictive material and preparation method thereof |
| WO2016010039A1 (en) * | 2014-07-14 | 2016-01-21 | 株式会社福田結晶技術研究所 | METHOD AND APPARATUS FOR GROWING Fe-Ga-BASED ALLOY SINGLE CRYSTAL |
| CN104200946B (en) * | 2014-08-20 | 2017-01-04 | 钢铁研究总院 | A kind of FeAl magnetically soft alloy of high-magnetostriction coefficient |
| CN106480505A (en) * | 2016-10-19 | 2017-03-08 | 西华大学 | A kind of New Polycrystalline magnetostriction materials based on quasi- homotype phase boundary and preparation method |
| CN108251622A (en) * | 2018-01-09 | 2018-07-06 | 中国科学院合肥物质科学研究院 | A kind of heat treatment method of FeGa base high-damping alloys |
| CN110875694A (en) * | 2018-08-30 | 2020-03-10 | 松下知识产权经营株式会社 | Magnetostrictive element and magnetostrictive vibration power generation device using same |
| CN110957416A (en) * | 2018-09-27 | 2020-04-03 | 松下知识产权经营株式会社 | Magnetostrictive element and method for manufacturing magnetostrictive element |
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| CN100352075C (en) * | 2002-05-17 | 2007-11-28 | 北京科技大学 | Fe-Ga series magnetostriction material and its producing process |
| JP3947066B2 (en) * | 2002-09-05 | 2007-07-18 | 株式会社Ｎｅｏｍａｘ | Magnetic alloy material |
| EP1554411B1 (en) * | 2002-10-25 | 2013-05-08 | Showa Denko K.K. | Production method of an alloy containing rare earth element |
-
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- 2007-04-24 CN CNB2007101014980A patent/CN100463083C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101824578A (en) * | 2010-03-12 | 2010-09-08 | 瑞科稀土冶金及功能材料国家工程研究中心有限公司 | Iron-based magnetostrictive alloy wire and production method thereof |
| CN102816973A (en) * | 2012-05-18 | 2012-12-12 | 内蒙古工业大学 | NiMnFeGaAl-RE series magnetostriction material and preparation method thereof |
| CN102816973B (en) * | 2012-05-18 | 2015-02-11 | 内蒙古工业大学 | NiMnFeGaAl-RE series magnetostriction material and preparation method thereof |
| CN103320682B (en) * | 2013-02-28 | 2015-06-24 | 瑞科稀土冶金及功能材料国家工程研究中心有限公司 | High-performance quick-quenching Fe-Ga based magnetostriction thin strip material and preparation technology thereof |
| CN103320682A (en) * | 2013-02-28 | 2013-09-25 | 瑞科稀土冶金及功能材料国家工程研究中心有限公司 | High-performance quick-quenching Fe-Ga based magnetostriction thin strip material and preparation technology thereof |
| JP2016028831A (en) * | 2014-07-14 | 2016-03-03 | 株式会社福田結晶技術研究所 | METHOD AND APPARATUS FOR GROWING Fe-Ga-BASED ALLOY SINGLE CRYSTAL |
| WO2016010039A1 (en) * | 2014-07-14 | 2016-01-21 | 株式会社福田結晶技術研究所 | METHOD AND APPARATUS FOR GROWING Fe-Ga-BASED ALLOY SINGLE CRYSTAL |
| CN104200946A (en) * | 2014-08-20 | 2014-12-10 | 钢铁研究总院 | FeAl magnetically soft alloy with high magnetostriction coefficient |
| CN104200946B (en) * | 2014-08-20 | 2017-01-04 | 钢铁研究总院 | A kind of FeAl magnetically soft alloy of high-magnetostriction coefficient |
| CN104947194A (en) * | 2015-05-04 | 2015-09-30 | 北京航空航天大学 | Magnetostrictive material and preparation method thereof |
| CN104947194B (en) * | 2015-05-04 | 2017-11-28 | 北京航空航天大学 | A kind of magnetostriction materials and preparation method thereof |
| CN106480505A (en) * | 2016-10-19 | 2017-03-08 | 西华大学 | A kind of New Polycrystalline magnetostriction materials based on quasi- homotype phase boundary and preparation method |
| CN108251622A (en) * | 2018-01-09 | 2018-07-06 | 中国科学院合肥物质科学研究院 | A kind of heat treatment method of FeGa base high-damping alloys |
| CN108251622B (en) * | 2018-01-09 | 2019-10-22 | 中国科学院合肥物质科学研究院 | A kind of heat treatment method of FeGa base high-damping alloy |
| CN110875694A (en) * | 2018-08-30 | 2020-03-10 | 松下知识产权经营株式会社 | Magnetostrictive element and magnetostrictive vibration power generation device using same |
| CN110957416A (en) * | 2018-09-27 | 2020-04-03 | 松下知识产权经营株式会社 | Magnetostrictive element and method for manufacturing magnetostrictive element |
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| CN100463083C (en) | 2009-02-18 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Baotou head rare earth science and Technology Development Co., Ltd. Assignor: Baotou Inst of Rare Earth Contract fulfillment period: 2008.11.19 to 2014.11.19 contract change Contract record no.: 2009150000003 Denomination of invention: FeGa-RE series magnetostrictive material and manufacturing process thereof Granted publication date: 20090218 License type: Exclusive license Record date: 2009.4.10 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.19 TO 2014.11.19; CHANGE OF CONTRACT Name of requester: BAOTOU SHENTOU RARE EARTH TECHNOLOGY DEVELOPMENT C Effective date: 20090410 |
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