CN108330372A - A kind of Ni-Co-Mn-Sn magnetic refrigerating materials and preparation method thereof - Google Patents
A kind of Ni-Co-Mn-Sn magnetic refrigerating materials and preparation method thereof Download PDFInfo
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- CN108330372A CN108330372A CN201810168569.7A CN201810168569A CN108330372A CN 108330372 A CN108330372 A CN 108330372A CN 201810168569 A CN201810168569 A CN 201810168569A CN 108330372 A CN108330372 A CN 108330372A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
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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
- H01F1/012—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials adapted for magnetic entropy change by magnetocaloric effect, e.g. used as magnetic refrigerating material
- H01F1/015—Metals or alloys
Abstract
The invention discloses a kind of Ni Co Mn Sn magnetic refrigerating materials and preparation method thereof, and chemical general formula is：Ni43‑xCoxMn46Sn11, 0≤x≤3 in formula.This method includes the following steps：（1）Raw metal is weighed in proportion mixing, Mn adds certain surplus；（2）Above-mentioned mixed raw material is subjected to melt back under the protection of argon gas, obtains the uniform alloy cast ingot of ingredient；（3）Above-mentioned alloy is subjected to melt spun under protection of argon gas, obtains Ni Co Mn Sn magnetic refrigerating materials.Alloy thin band of the present invention improves the saturation magnetization of austenite and the Curie temperature of alloy by the addition of Co elements so that the alloy strip steel rolled stock has preferable magnetic heating performance near room temperature.The material shows second-order phase transistion in magnetic history, and almost without heat stagnation and magnetic hysteresis, and preparation process is simple, of low cost, is suitable for industrialized production and practical application.
Description
Technical field
The present invention relates to field of magnetic material, and in particular to a kind of Ni-Co-Mn-Sn magnetic refrigerating materials and preparation method thereof.
Background technology
With the getting worse of global energy crisis and the worsening of environment, traditional vapor compression refrigeration technological side
Face unprecedented challenge, refrigeration industry energy consumption according to statistics accounts for the whole society always consumes energy 15% or more, and people are to new Refrigeration Technique
Attention rate is also increasing sharply.Current Refrigeration Technique mainly has vapor compression refrigeration, magnetic refrigeration, liquid gasification refrigeration and thermoelectricity
The various ways such as refrigeration.Compared with traditional gas Compressing Refrigeration, magnetic Refrigeration Technique using solid magnetic material as working medium, by
Refrigeration is realized in the magneto-caloric effect of magnetic material, has the series of advantages such as small, energy-efficient and environmental-friendly, it is considered to be
One of most promising green refrigeration technology.
As environmentally protective Refrigeration Technique, magnetic refrigeration has been subjected to the concern in the whole world.In recent years, several classes are in room temperature range
Material with giant magnetio-caloric effects, such as：The alloys such as Gd-Si-Ge, Ni-Mn-Sn, Mn-Fe-P-Si and La-Fe-Si.These materials
Common feature is variation of the magnetic phase transition along with significant crystal structure（First order phase change material）So that its magnetothermal effect is obviously high
In traditional magnetic refrigerating material Gd（Second-order phase transistion material）.However when working, first order phase change material is in magnetic phase transition temperature（That is alloy
Curie temperature）Neighbouring reciprocation cycle and cause material lattice volume that the regularity of " expansion-contraction-expansion-contraction ... " occurs
Variation will repeatedly lead to the dusting of material, to seriously restrict its application on magnetic refrigerator after cycle.After melting simultaneously
Block alloy need the even longer time of high annealing seven days, energy consumption is surprising, and since block alloy brittleness is big, causes
It is difficult to carry out subsequent working process, seriously limits practical application.
In recent years, the research of magnetic refrigerating field has been increasingly turned to second-order phase transistion material, Ni-Mn-Sn alloy materials with its compared with
Good magnetic heating performance and cheap cost become the hot spot of research, but since the Curie temperature of ternary Ni-Mn-Sn alloys is less than room
Temperature limits the temperature range of such material application.Recent study finds that addition Co elements can effectively improve Curie's temperature
The intensity of magnetization of degree and austenite phase, to improve magnetic entropy change.In recent years in the preparation work of magnetic refrigerating material, melt
The method of quick quenching technique is widely used.This method can not only crystal grain thinning, improve alloy brittleness, and can prepare
Go out the thin-band material of suitable practical application（Thin-band material heat exchange is fast and demagnetization influence is small）.Therefore, inner temperature of settling in a foreign country or in another city is designed and developed
The second-order phase transistion alloy thin band near room temperature is spent to pushing the development of magnetic refrigerating material to have great importance.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of Ni-Co-Mn-Sn magnetic refrigerating materials, which is a kind of residence
In temperature near room temperature and with compared with great magnetic entropy variation polycrystalline Ni-Co-Mn-Sn alloy thin bands.
It is another object of the present invention to provide the preparation methods of above-mentioned Ni-Co-Mn-Sn magnetic refrigerating materials.
The purpose of the invention is achieved by the following technical solution.
A kind of Ni-Co-Mn-Sn magnetic refrigerating materials, chemical general formula are：Ni43-xCoxMn46Sn11, 0≤x≤3 in formula.
Preferably, the x is 0,1,2 or 3.
Preferably, the material is Ni-Co-Mn-Sn alloy thin bands.
Preferably, the material is second-order phase transistion material.
The preparation method of above-mentioned magnetic refrigerating material, includes the following steps：
（1）By W metal, metal Co, metal Mn and metal Sn weigh according to the ingredient of alloy thin band, are placed in smelting furnace in proportion
In, wherein Mn also adds Ni43-xCoxMn46Sn11The surplus of middle Mn mass 1 ~ 3%；
（2）By step（1）The melt back under protection of argon gas of gained mixed raw material obtains the uniform alloy cast ingot of ingredient；
（3）By step（2）Gained alloy cast ingot carries out fast melt-quenching under protection of argon gas, obtains Ni-Co-Mn-Sn alloy thin bands,
That is Ni-Co-Mn-Sn magnetic refrigerating materials.
Preferably, step（1）In, each element purity is：Mn：99.9wt.%, Ni：99.96wt.%, Sn：99.9wt.%,
Co：99.9wt.%.
Preferably, step（2）Described in melting be to be evacuated in vacuum arc furnace ignition
10-3Pa is re-filled with argon gas, and carried out under its protection hereinafter, with after argon purge burner hearth.
Preferably, step（2）The number of the melt back is 4~5 times.
Preferably, step（3）It is middle that the alloy cast ingot is sealed in quartz ampoule, it is evacuated to 10-3Pa is hereinafter, be filled with argon
Gas is heat-treated under the conditions of 900~950 DEG C, obtains Ni-Co-Mn-Sn alloy thin bands.
Preferably, step（3）Described in fast melt-quenching condition be high-frequency induction heating, be evacuated to 10-3Pa is hereinafter, use argon
After gas cleans burner hearth, the argon gas for being filled with 0.08MPa sprays the parent state alloy of melting from quartz ampoule.
Preferably, described to be evacuated to 10-3Pa or less；The inert gas is argon gas.
Preferably, the heat treatment temperature of the alloy thin band is 900 DEG C.
Preferably, the time of the heat treatment is 2 hours.
Preferably, step 3）During the fast melt-quenching, it is 15 ~ 25m/s to get rid of with tangential linear velocity.
Compared with prior art, the present invention has the advantage that and effect：
（1）The Ni-Co-Mn-Sn alloy thin bands of the present invention are second-order phase transistion materials, compared with first order phase change material, without heat stagnation
And magnetic hysteresis.The Curie temperature of prepared alloy thin band can be adjusted between 279K to 354K, and there is larger magnetic entropy to become, and
For magnetic entropy varied curve than shallower, temperature is transregional big.Wherein, when x=1 under 2T externally-applied magnetic fields, maximum magnetic entropy variable is 1.89 Jkg-1
K-1。
（2）The preparation method of the Ni-Co-Mn-Sn alloy thin bands of the present invention need not carry out block alloy prolonged
The high temperature anneal, getting rid of the alloy strip steel rolled stock after band only needs heat treatment in 2 hours, significantly reduces the manufacturing cost of alloy.
（3）The Ni-Co-Mn-Sn alloy thin bands of the present invention improve Curie temperature and austenite by the addition of Co elements
The saturation magnetization of phase improves the operation interval and magnetic heating performance of alloy thin band.
Description of the drawings
Fig. 1 is Ni prepared by Examples 1 to 443-xCoxMn46Sn11（X=0,1,2 and 3）The room temperature X-ray diffractogram of alloy.
Fig. 2 a are Ni prepared by embodiment 143Mn46Sn11Thermomagnetization curve figure of the alloy thin band under the magnetic fields 0.01T（M-T）.
Fig. 2 b are Ni prepared by embodiment 143Mn46Sn11The magnetic entropy of alloy thin band becomes Δ SMThe curve graph varied with temperature.
Fig. 3 a are Ni prepared by embodiment 242CoMn46Sn11Thermomagnetization curve of the alloy thin band under the magnetic fields 0.01T（M-T）
Figure.
Fig. 3 b are Ni prepared by embodiment 242CoMn46Sn11The Δ S of alloy thin bandMThe curve graph varied with temperature.
Fig. 4 a are Ni prepared by embodiment 341Co2Mn46Sn11Thermomagnetization curve of the alloy thin band under the magnetic fields 0.01T（M-T）
Figure.
Fig. 4 b are Ni prepared by embodiment 341Co2Mn46Sn11The Δ S of alloy thin bandMThe curve graph varied with temperature.
Fig. 5 a are Ni prepared by embodiment 440Co3Mn46Sn11Thermomagnetization curve of the alloy thin band under the magnetic fields 0.01T（M-T）
Figure.
Fig. 5 b are Ni prepared by embodiment 440Co3Mn46Sn11The Δ S of alloy thin bandMThe curve graph varied with temperature.
Specific implementation mode
In following embodiment, each element purity is：Mn：99.9wt.%, Ni：99.96wt.%, Sn：99.9wt.%, Co：
99.9wt.%。
Embodiment 1
Step 1：Ni, Mn, Sn are pressed to the molar ratio Ni of element：Mn：Sn = 43:46:11, mixing is weighed respectively, and Mn adds it
The surplus of quality 1.5%；
Step 2：The raw material that step 1 has configured is put into vacuum arc furnace ignition, is evacuated to 10-3Pa is cleaned with high-purity argon gas
The high-purity argon gas of 0.04MPa is filled with after burner hearth, melt back 5 times, obtains the uniform button shape of ingredient under high-purity argon gas protection
Alloy cast ingot.
Step 3：Alloy cast ingot prepared by step 2 carry out it is simple and mechanical it is broken after, is fitted into quartz jet pipe, and by stone
English pipe is fixed in induction coil, is evacuated to 10-4Pa after cleaning burner hearth with high-purity argon gas, is filled with the high-purity of pressure difference 0.08MPa
Argon gas, carries out single roller fast melt-quenching under its protection, and the tangential linear velocity of copper roller is 20m/s.
Step 4：The strip samples got rid of with after are sealed in quartz ampoule, are evacuated to 10-3After Pa, it is filled with 0.02MPa's
High-purity argon gas makes annealing treatment 2 hours at 900 DEG C after sealing, quickly quenches in water later.
The sample that step 4 obtains proves that it is single-phase Ni through X-ray diffraction2MnSn materials, structure are body-centered cubic L21
（See Fig. 1）.
With physical measurement system（PPMS）The relation curve of the intensity of magnetization and temperature of four gained sample of measuring process.According to
It is about 279K that the thermomagnetization curve of Fig. 2 a, which can obtain its Curie temperature,.
The magnetothermal effect of alloy thin band manufactured in the present embodiment becomes Δ S with magnetic entropyMTo characterize.Pass through isothermal magnetization curve
（M-H）Curved measurement is simultaneously calculated according to Maxwell equations, as shown in Figure 2 b, the Ni under the magnetic fields 2T and 5T43Mn46Sn11It closes
The maximum magnetic entropy variable of golden strip is respectively 1.79 Jkg-1 K-1With 3.10 Jkg-1 K-1。
Embodiment 2
Step 1：Ni, Mn, Co, Sn are pressed to the molar ratio Ni of element：Co：Mn：Sn = 42:1：46:11, mixing is weighed respectively,
Mn adds the surplus of its quality 1.5%；
Step 2：The raw material that step 1 has configured is put into vacuum arc furnace ignition, is evacuated to 10-3Pa is cleaned with high-purity argon gas
The high-purity argon gas of 0.04MPa is filled with after burner hearth, melt back 5 times, obtains the uniform button shape of ingredient under high-purity argon gas protection
Alloy cast ingot.
Step 3：Alloy cast ingot prepared by step 2 carry out it is simple and mechanical it is broken after, is fitted into quartz jet pipe, and by stone
English pipe is fixed in induction coil, is evacuated to 10-4Pa after cleaning burner hearth with high-purity argon gas, is filled with the high-purity of pressure difference 0.08MPa
Argon gas, carries out single roller fast melt-quenching under its protection, and the tangential linear velocity of copper roller is 20m/s.
Step 4：The strip samples got rid of with after are sealed in quartz ampoule, are evacuated to 10-3After Pa, it is filled with 0.02MPa's
High-purity argon gas makes annealing treatment 2 hours at 900 DEG C after sealing, quickly quenches in water later.
The sample that step 4 obtains proves that it is single-phase Ni through X-ray diffraction2MnSn materials, structure are body-centered cubic L21
（See Fig. 1）.
With physical measurement system（PPMS）The relation curve of the intensity of magnetization and temperature of four gained sample of measuring process.According to
It is about 305K that the thermomagnetization curve of Fig. 3 a, which can obtain its Curie temperature,.
The magnetothermal effect of alloy thin band manufactured in the present embodiment becomes Δ S with magnetic entropyMTo characterize.Pass through isothermal magnetization curve
（M-H）Curved measurement is simultaneously calculated according to Maxwell equations, as shown in Figure 3b, the Ni under the magnetic fields 2T and 5T42CoMn46Sn11
The maximum magnetic entropy variable of alloy thin band is respectively 1.89 Jkg-1 K-1With 3.25 Jkg-1 K-1。
Embodiment 3
Step 1：Ni, Mn, Co, Sn are pressed to the molar ratio Ni of element：Co：Mn：Sn = 41:2：46:11, mixing is weighed respectively,
Mn adds the surplus of its quality 1.5%；
Step 2：The raw material that step 1 has configured is put into vacuum arc furnace ignition, is evacuated to 10-3Pa is cleaned with high-purity argon gas
The high-purity argon gas of 0.04MPa is filled with after burner hearth, melt back 5 times, obtains the uniform button shape of ingredient under high-purity argon gas protection
Alloy cast ingot.
Step 3：Alloy cast ingot prepared by step 2 carry out it is simple and mechanical it is broken after, is fitted into quartz jet pipe, and by stone
English pipe is fixed in induction coil, is evacuated to 10-4Pa after cleaning burner hearth with high-purity argon gas, is filled with the high-purity of pressure difference 0.08MPa
Argon gas, carries out single roller fast melt-quenching under its protection, and the tangential linear velocity of copper roller is 20m/s.
Step 4：The strip samples got rid of with after are sealed in quartz ampoule, are evacuated to 10-3After Pa, it is filled with 0.02MPa's
High-purity argon gas makes annealing treatment 2 hours at 900 DEG C after sealing, quickly quenches in water later.
The sample that step 4 obtains proves that it is single-phase Ni through X-ray diffraction2MnSn materials, structure are body-centered cubic L21
（See Fig. 1）.
With physical measurement system（PPMS）The relation curve of the intensity of magnetization and temperature of four gained sample of measuring process.According to
It is about 323K that the thermomagnetization curve of Fig. 4 a, which can obtain its Curie temperature,.
The magnetothermal effect of alloy thin band manufactured in the present embodiment becomes Δ S with magnetic entropyMTo characterize.Pass through isothermal magnetization curve
（M-H）Curved measurement is simultaneously calculated according to Maxwell equations, as shown in Figure 4 b, the Ni under the magnetic fields 2T and 5T41Co2Mn46Sn11
The maximum magnetic entropy variable of alloy thin band is respectively 1.79 Jkg-1 K-1With 3.09 Jkg-1 K-1。
Embodiment 4
Step 1：Ni, Mn, Co, Sn are pressed to the molar ratio Ni of element：Co：Mn：Sn = 40:3：46:11, mixing is weighed respectively,
Mn adds the surplus of its quality 1.5%；
Step 2：The raw material that step 1 has configured is put into vacuum arc furnace ignition, is evacuated to 10-3Pa is cleaned with high-purity argon gas
The high-purity argon gas of 0.04MPa is filled with after burner hearth, melt back 5 times, obtains the uniform button shape of ingredient under high-purity argon gas protection
Alloy cast ingot.
Step 3：Alloy cast ingot prepared by step 2 carry out it is simple and mechanical it is broken after, is fitted into quartz jet pipe, and by stone
English pipe is fixed in induction coil, is evacuated to 10-4Pa after cleaning burner hearth with high-purity argon gas, is filled with the high-purity of pressure difference 0.08MPa
Argon gas, carries out single roller fast melt-quenching under its protection, and the tangential linear velocity of copper roller is 20m/s.
Step 4：The strip samples got rid of with after are sealed in quartz ampoule, are evacuated to 10-3After Pa, it is filled with 0.02MPa's
High-purity argon gas makes annealing treatment 2 hours at 900 DEG C after sealing, quenches in water later.
The sample that step 4 obtains proves that it is single-phase Ni through X-ray diffraction2MnSn materials, structure are body-centered cubic L21
（See Fig. 1）.
With physical measurement system（PPMS）The relation curve of the intensity of magnetization and temperature of four gained sample of measuring process.According to
It is about 354K that the thermomagnetization curve of Fig. 5 a, which can obtain its Curie temperature,.
The magnetothermal effect of alloy thin band manufactured in the present embodiment becomes Δ S with magnetic entropyMTo characterize.Pass through isothermal magnetization curve
（M-H）Curved measurement is simultaneously calculated according to Maxwell equations, as shown in Figure 5 b, the Ni under the magnetic fields 2T and 5T40Co3Mn46Sn11
The maximum magnetic entropy variable of alloy thin band is respectively 1.60 Jkg-1 K-1With 2.80 Jkg-1 K-1。
Claims (10)
1. a kind of Ni-Co-Mn-Sn magnetic refrigerating materials, which is characterized in that the chemical general formula of the material is Ni43-xCoxMn46Sn11,
0≤x≤3 in formula.
2. a kind of Ni-Co-Mn-Sn magnetic refrigerating materials according to claim 1, which is characterized in that the x be 0,1,2 or
3。
3. the method for preparing a kind of Ni-Co-Mn-Sn magnetic refrigerating materials as claimed in claim 1 or 2, which is characterized in that including under
State step：
1）By raw metal Ni, Co, Mn, Sn, example is weighed mixing in molar ratio, wherein Mn also adds Ni43-xCoxMn46Sn11Middle Mn
The surplus of quality 1 ~ 3%；
2）By step 1）Gained mixed raw material carries out melt back under protection of argon gas, obtains the uniform alloy cast ingot of ingredient；
3）By step 2）Gained alloy cast ingot carries out fast melt-quenching under protection of argon gas, obtains Ni-Co-Mn-Sn alloy thin bands, i.e.,
Ni-Co-Mn-Sn magnetic refrigerating materials.
4. preparation method according to claim 3, which is characterized in that step 2）In, the melting is molten in vacuum arc
In furnace, it is evacuated to 10-3Pa is re-filled with argon gas progress hereinafter, with after argon purge burner hearth.
5. preparation method according to claim 3, which is characterized in that step 3）In, the alloy cast ingot is sealed in stone
Ying Guanzhong is vacuumized, and is filled with inert gas, is heat-treated under the conditions of 900~950 DEG C, is obtained Ni-Co-Mn-Sn alloy thin bands.
6. preparation method according to claim 5, which is characterized in that described to be evacuated to 10-3Pa or less；The indifferent gas
Body is argon gas.
7. preparation method according to claim 5, which is characterized in that the heat treatment temperature of the alloy thin band is 900 DEG C.
8. preparation method according to claim 5, which is characterized in that the time of the heat treatment is 2 hours.
9. preparation method according to claim 3, which is characterized in that step 3）In, the condition of the fast melt-quenching is height
Frequency sensing heating, is evacuated to 10-3Pa is hereinafter, with argon purge burner hearth.
10. preparation method according to claim 3, which is characterized in that step 3）During the fast melt-quenching, gets rid of band and cut
It is 15 ~ 25m/s to linear velocity.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453132A (en) * | 2019-08-14 | 2019-11-15 | 东北大学 | A kind of Ni-Mn-Sn-Co-Si magnetic refrigerating material |
| CN111500837A (en) * | 2020-05-28 | 2020-08-07 | 重庆科技学院 | Integrated metal processing device and using method thereof |
| CN113088850A (en) * | 2021-04-13 | 2021-07-09 | 哈尔滨工业大学 | Preparation method of large reversible magnetic strain NiCoMnSn alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974707A (en) * | 2010-10-13 | 2011-02-16 | 南京大学 | Ferromagnetic shape memory alloy material with giant magnetocaloric and magnetoresistance effect and application |
| CN106917030A (en) * | 2017-04-21 | 2017-07-04 | 太原科技大学 | A kind of downfield drives orientation Mn Ni Sn magnetic refrigeration alloy material and its method for preparing thin strip thereof |
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2018
- 2018-02-28 CN CN201810168569.7A patent/CN108330372B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974707A (en) * | 2010-10-13 | 2011-02-16 | 南京大学 | Ferromagnetic shape memory alloy material with giant magnetocaloric and magnetoresistance effect and application |
| CN106917030A (en) * | 2017-04-21 | 2017-07-04 | 太原科技大学 | A kind of downfield drives orientation Mn Ni Sn magnetic refrigeration alloy material and its method for preparing thin strip thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453132A (en) * | 2019-08-14 | 2019-11-15 | 东北大学 | A kind of Ni-Mn-Sn-Co-Si magnetic refrigerating material |
| CN110453132B (en) * | 2019-08-14 | 2021-07-02 | 东北大学 | Ni-Mn-Sn-Co-Si magnetic refrigeration material |
| CN111500837A (en) * | 2020-05-28 | 2020-08-07 | 重庆科技学院 | Integrated metal processing device and using method thereof |
| CN113088850A (en) * | 2021-04-13 | 2021-07-09 | 哈尔滨工业大学 | Preparation method of large reversible magnetic strain NiCoMnSn alloy |
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