CN1598930A - Quenching nano crystal giant magnetic impedance tape material and preparation method - Google Patents

Quenching nano crystal giant magnetic impedance tape material and preparation method Download PDF

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Publication number
CN1598930A
CN1598930A CN 200410035724 CN200410035724A CN1598930A CN 1598930 A CN1598930 A CN 1598930A CN 200410035724 CN200410035724 CN 200410035724 CN 200410035724 A CN200410035724 A CN 200410035724A CN 1598930 A CN1598930 A CN 1598930A
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quenching
nano
attitude
preparation
crystalline thin
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Chinese (zh)
Inventor
胡季帆
李波
秦宏伟
喻晓军
赵栋梁
王新林
王卓
蒋民华
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Central Iron and Steel Research Institute
Shandong University
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Central Iron and Steel Research Institute
Shandong University
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Priority to CN 200410035724 priority Critical patent/CN1598930A/en
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Abstract

The invention belongs to the field of the magnetic sensing and magnetic storage technology. The main content of the invention is tempering nanometer crystal sheet band material, which is composed of iron, zirconium, copper and boron. The constitution formula is FealphaZrbetaCugammaBlambda, amongst which the atom per cent Beta is between 5 and 8, Gamma is between 2.3 and 5, Lambda is between 2 and 6 and Alpha is equal to 100 minus Beta minus Gamma minus lambda. The preparation adopts the vacuum melting and strap swinging, gets rid of anneal and reduces the cost. In sum, the invention is featured by simple technique, low cost and low energy consumption. The tempering nanometer crystal sheet band material got from the technique has good magnetic impedance performance.

Description

A kind of nanocrystalline huge magnetic impedance thin band material of the novel attitude of quenching and preparation method
(1) technical field
The present invention relates to a kind of novel nanocrystalline huge magnetic impedance thin band material of attitude and preparation method thereof of quenching.Belong to magnetic sensing and magnetic storage technical field.
(2) background technology
The main points of giant magnetoresistance effect are under upper frequency, and the material impedance is sensitive the variation with applying dc magnetic field.The giant magnetoresistance effect material can be used as the core parts of magnetic sensing and magnetic head, has wide application prospect in fields such as Electric Machine Control, industrial robot, medical electronics, robotization, data storage and multimedia technology, intelligent measure and control system.The at present a kind of important Fe-Zr-B-Cu nano-crystalline thin carrying material of giant magnetoresistance effect material for obtaining through annealing, the well matched side of one is Fe 88Zr 7Cu 1B 4Its corresponding material preparation method is the preparation attitude non-crystalline thin-band material of quenching at first, be to anneal 20～120 minutes in vacuum 500 ℃～750 ℃ under or the protective atmosphere in temperature then, thereby crystallization is separated out α-Fe nanocrystal, the formation nano-crystalline thin ribbon.Must vacuumize or add protective atmosphere during annealing with the not oxidation of guarantee sample, otherwise the performance sharp fall, preparation technology is comparatively complicated.Annealing is heated and is also needed consume electric power, the production cost height in addition.
(3) summary of the invention
Purpose of the present invention is exactly for shortcomings such as the complicated process of preparation that solves the prior art existence, big energy-consumings, and designs a kind of nanocrystalline giant magnetic impedance Fe of the novel attitude of quenching that need not to anneal αZr βCu γB λThin-band material has also provided concrete preparation method.
The present invention is realized by following technical scheme:
The nanocrystalline huge magnetic impedance thin band material of this novel attitude of quenching is made up of ferro element, zr element, copper, boron element, and its composition formula is Fe αZr βCu γB λ, the span of atomic percentage is:
β＝5～8
γ＝2.3～5
λ＝2～6
α＝100-β-γ-λ。
The present invention gives the novel attitude nano-crystalline Fe of quenching αZr βCu γB λThe preparation method of strip, concrete steps are as follows:
Earlier with Fe αZr βCu γB λIn the ratio weighing of atomic percentage, the material that weighs up is put into electric arc furnaces, be evacuated down to 10 -3Pa charges into the 101325Pa argon gas, and molten alloy gets rid of band machine with the speed of 30～40 meter per seconds by vacuum with melted alloy then and throws away nano-crystalline thin ribbon, obtains having the Fe of giant magnetoresistance effect αZr βCu γB λThe attitude of quenching nano-crystalline thin carrying material.
Material preparation process of the present invention need not annealing process, utilizes the high-load Cu in the alloy and cooperates the suitable tape speed that gets rid of, and the crystal grain that improved the nucleating point of material and refinement makes Fe αZr βCu γB λProduce separating out of a large amount of cube α-Fe soft magnetism nanocrystals in the attitude of the quenching strip, form the attitude nano-crystalline thin ribbon of quenching with giant magnetoresistance effect.Because material of the present invention is the attitude nanometer of quenching, it is that amorphous is different through the Fe-Zr-B-Cu huge magnetic impedance thin band material of annealing nanometer with the attitude of quenching in the past.For the Fe-Zr-B-Cu of annealing nanometer, its optimum performance is 1 material composition at the Cu atomic percentage conc.And to the Fe of attitude nanometer that quenches αZr βCu γB λ, if the percentage composition of Cu is crossed low x＜2.3, nano-crystallization deficiency in the attitude material of quenching that does not have annealing then causes that the material magnetic permeability is not high, the giant magnetic impedance performance is low; As if the too high x of percentage composition＞5 of Cu, then reduce the saturation magnetization of material.For obtaining preferable giant magnetoresistance effect, the percentage composition x of Cu is chosen in the scope of 2.3≤x≤5.0 and is advisable in the attitude of the quenching strip.In addition, for reducing crystallite dimension, the tape speed that gets rid of during the preparation strip can not be too little, and the tape speed that gets rid of with 30～40 meter per seconds is found in experiment, α-Fe average crystal grain can be adjusted control in 20～5nm scope.
The invention provides a kind of novel attitude nano-crystalline thin carrying material of quenching, not only preparation technology simple, saved annealing steps, saved the energy, and the giant magnetic impedance performance of material is also higher.For example get rid of speed under the 38m/s, the Fe that 5cm is long 86.3Zr 7Cu 3.2B 3.5The attitude of quenching nano-crystalline thin carrying material is giant magnetic impedance value Δ Z/Z under the 7162A/m in magnetic field H 0=(Z (H)-Z (0))/Z (0) maximum can reach-58%.
In a word, the present invention has advantages such as material giant magnetic impedance performance is good, and preparation technology is simple, and it is low to consume energy, and production cost is low.
(4) embodiment
Embodiment 1:
According to prescription Fe 86.3Zr 7Cu 3.2B 3.5The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to the 10-3 handkerchief, charge into the 101325Pa argon gas, molten alloy gets rid of band machine with the speed of 38 meter per seconds by vacuum with melted alloy and throws away strip.Record this long Fe of 5cm 86.3Zr 7Cu 3.2B 3.5The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-58%.
Embodiment 2:
According to prescription Fe 86.2Zr 7Cu 3.3B 3.5The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to 10 -3Handkerchief charges into the 101325Pa argon gas, and molten alloy gets rid of band machine with the speed of 30 meter per seconds by vacuum with melted alloy and throws away strip.Record this long Fe of 5cm 86.2Zr 7Cu 3.3B 3.5The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-45%.
Embodiment 3:
According to prescription Fe 85.5Zr 7Cu 3.5B 4The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to the 10-3 handkerchief, charge into the 101325Pa argon gas, molten alloy.Melted alloy is got rid of the band machine with the speed of 40 meter per seconds by vacuum throw away strip.Record this long Fe of 5cm 85.5Zr 7Cu 3.5B 4The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-48%.
Embodiment 4:
According to prescription Fe 86.3Zr 6Cu 3.7B 4The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to 10 -3Handkerchief charges into the 101325Pa argon gas, molten alloy.Melted alloy is got rid of the band machine with the speed of 30 meter per seconds by vacuum throw away strip.Record this long Fe of 5cm 86.3Zr 6Cu 3.7B 4The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-38%.
Embodiment 5:
According to prescription Fe 86.5Zr 7Cu 2.5B 4The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to 10 -3Handkerchief charges into the 101325Pa argon gas, and molten alloy gets rid of band machine with the speed of 35 meter per seconds by vacuum with melted alloy and throws away strip.Record this long Fe of 5cm 86.5Zr 7Cu 2.5B 4The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-40%.
Embodiment 6:
According to prescription Fe 86.7Zr 7Cu 2.3B 4The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to the 10-3 handkerchief, charge into the 101325Pa argon gas, molten alloy.Melted alloy is got rid of the band machine with the speed of 35 meter per seconds by vacuum throw away strip.Record this long Fe of 5cm 86.7Zr 7Cu 2.3B 4The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-26%.
Embodiment 7:
According to prescription Fe 81.5Zr 8Cu 4.5B 6The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to 10 -3Handkerchief charges into the 101325Pa argon gas, molten alloy.Melted alloy is got rid of the band machine with the speed of 36 meter per seconds by vacuum throw away strip.Record this long Fe of 5cm 81.5Zr 8Cu 4.5B 6The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-24%.
Embodiment 8:
According to prescription Fe 84Zr 5Cu 5B 6The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to 10 -3Handkerchief charges into the 101325Pa argon gas, molten alloy.Melted alloy is got rid of the band machine with the speed of 36 meter per seconds by vacuum throw away strip.Record this long Fe of 5cm 84Zr 5Cu 5B 6The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-18%.
Embodiment 9:
According to prescription Fe 88.5Zr 7Cu 2.5B 2The weighing of chemical element ratio, material is put into electric arc furnaces, be evacuated down to the 10-3 handkerchief, charge into the 101325Pa argon gas, molten alloy.Melted alloy is got rid of the band machine with the speed of 40 meter per seconds by vacuum throw away strip.Record this long Fe of 5cm 88.5Zr 7Cu 2.5B 2The fast quenching nano-crystalline thin ribbon is the maximum magnetic flux impedance rate of change Δ Z/Z under the 7162A/m in magnetic field 0Be-35%.

Claims (2)

1. nanocrystalline huge magnetic impedance thin band material of the novel attitude of quenching is characterized in that it is made up of ferro element, zr element, copper, boron element, and its composition formula is Fe αZr βCu γB λ, the span of atomic percentage is:
β＝5～8
γ＝2.3～5
λ＝2～6
α＝100-β-γ-λ。
2. one kind prepares the novel attitude nano-crystalline thin ribbon preparation methods of quenching as claimed in claim 1, it is characterized in that preparation process is as follows:
Earlier with Fe αZr βCu γB λIn the ratio weighing of atomic percentage, the material that weighs up is put into electric arc furnaces, be evacuated down to 10 -3Pa charges into the 101325Pa argon gas, and molten alloy gets rid of band machine with the speed of 30～40 meter per seconds by vacuum with melted alloy then and throws away nano-crystalline thin ribbon, obtains having the Fe of giant magnetoresistance effect αZr βCu γB λThe attitude of quenching nano-crystalline thin carrying material.
CN 200410035724 2004-09-08 2004-09-08 Quenching nano crystal giant magnetic impedance tape material and preparation method Pending CN1598930A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100416718C (en) * 2006-02-08 2008-09-03 钢铁研究总院 Fe-Mo quick quenched nanometer crystalline giant magneto-impedance strip and preparation method
CN110565032A (en) * 2019-09-17 2019-12-13 哈尔滨工业大学 Amorphous fiber with giant magneto-impedance effect and preparation method and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100416718C (en) * 2006-02-08 2008-09-03 钢铁研究总院 Fe-Mo quick quenched nanometer crystalline giant magneto-impedance strip and preparation method
CN110565032A (en) * 2019-09-17 2019-12-13 哈尔滨工业大学 Amorphous fiber with giant magneto-impedance effect and preparation method and application thereof

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