CN106623950A - Novel Gd-Fe-Ni alloy wave absorbing micropowder - Google Patents
Novel Gd-Fe-Ni alloy wave absorbing micropowder Download PDFInfo
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- CN106623950A CN106623950A CN201510722722.2A CN201510722722A CN106623950A CN 106623950 A CN106623950 A CN 106623950A CN 201510722722 A CN201510722722 A CN 201510722722A CN 106623950 A CN106623950 A CN 106623950A
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Abstract
The invention discloses a Gd-Fe-Ni base alloy wave absorbing material. The wave absorbing material uses Gd, Fe and Ni as raw materials; firstly, the batching is performed according to an atom ratio of Gd2FexNi17-x(2(b) not more than (/b)X(b) not more than (/b)15); then, the mixture is smelted as an alloy ingot; the alloy ingot is sealed in a quartz glass tube in vacuum for high-temperature homogenization and ice-water mixture quenching treatment in sequence; then, a surface dust layer is removed; the mechanical primary crushing is performed; the ball milling is performed under protection of protective liquid; and finally, the airing is performed.
Description
Technical field
The present invention relates to a kind of alloy inhales ripple micropowder material, more particularly to a kind of rare earth-iron base alloy inhales ripple micro mist and its preparation technology.
Background technology
With developing rapidly for military new and high technology, Stealth Technique on Aircraft stealth becomes more and more important.While widely using with electronic equipment, electromagnetic radiation is increasingly serious so that absorbing material uses more and more extensive in military and civilian.
Excellent absorbing material not only requires that microwave absorbability is high but also the performances such as suction bandwidth of being eager to excel.Traditional absorbing material mainly has ferrite-type and magnetic metal（Alloy）Micro mist etc., ferrite saturation magnetization under 1-18GHz frequency ranges is low, and microwave magnetic permeability is less, and matching thickness is thicker（Centimeter Level）, therefore Ferrite Material is subject to great limitation in the application of the frequency range.And soft magnetic metal inhales ripple micro mist because Curie temperature is high, temperature stability is good, if soft magnetic metal is worn into into micro mist by technology, the atom for making alloy surface increases, and the special construction of high concentration crystal boundary and crystal boundary atom can cause material under the radiation of electromagnetic field, and atom, electron motion aggravate, promote magnetization, electromagnetic energy is set to be heat energy, so as to increased the absorption to electromagnetic wave, current magnetically soft alloy micro mist mainly has Fe, Co, Ni and its alloy powder etc..
4f shells are discontented with rare earth atom electron outside nucleus layer, and with magnetic moment, 4f shells " buried " are not affected by conduction electronics and adjacent to dot matrix to a great extent in atom, the magnetic moment size of rare earth atom or ion not only with atom or iongI is factor-related, also with atom total angular momentumJ It is relevant, these unique properties make rareearth magnetic material produce breakthrough in many fields, such as rare earth permanent magnet, giant magnetostriction material, magneto-optic and magnetic refrigerating material, rare earth specificity will also affect the mechanism of absorption of electric wave absorbing materials, such as complex permeability and natural resonant frequency, therefore the addition of rare earth and its compound has become the effective way for improving absorber characteristic.The present invention prepares a kind of excellent composite alloy of suction ripple and inhales ripple micro mist by proportioning a certain proportion of Gd, Fe, Ni.
The content of the invention
A kind of Gd-Fe-Ni based alloys absorbing material, the preparation technology of the suction ripple micro mist comprises the steps：
(1) with Gd, Fe, Ni as raw material, and by Gd2Fe xNi17-x（2≤X≤15）Atom ratio dispensing；
(2) ingredients mixture is carried out into melting so as to be smelted into alloy pig；
(3) alloy pig is vacuum-sealed in quartz glass tube；
(4) sealing quartz glass tube is put in high temperature furnace again carries out Homogenization Treatments；
(5) glass tube is taken out after processing, in input mixture of ice and water Quenching Treatment is carried out；
(6) alloy pig is taken out, surface grieshoch is removed, then carries out mechanical preliminary crushing；
(7) powder pulverized powder is collected, powder is poured in ball grinder；
(8) pour protection liquid into toward ball grinder, till filling, cover cover, being put into ball mill carries out ball-milling treatment；
(9) alloy powder is taken out after ball milling terminates is dried, you can obtained a kind of alloy and inhale ripple micropowder material.
Preferentially, step (4) in, at 500-600 DEG C, the time is 10-15 days to Homogenization Treatments temperature control.
Preferentially, step (8) in, the protection liquid poured into is alcohol or gasoline.
Preferentially, step (8) in, Ball-milling Time be 40-60 hours.
Specific embodiment
Embodiment one：
Gd is pressed with Gd, Fe, Ni simple substance2Fe2Ni15Atom ratio dispensing 5g，It is mixed after dispensing，Again mixture is carried out into melting with vacuum arc furnace ignition，After melting 1 time，By its reverse side，Melting 1 time again，Alloy pig is taken out after melting is uniform is put in quartz glass tube，By tube sealing technique，Glass tube is sealed to into low vacuum state，Glass tube is put in water after sealing，Check its whether good seal，If emerging without bubble，Then show that sealing is good，Take out glass tube，After wiped clean，Glass tube is put in high temperature furnace，Carry out Homogenization Treatments，Temperature setting is 500 DEG C，Glass tube is put in mixture of ice and water and is quenched by annealing after 15 days，Taking-up alloy pig to be cooled，Remove surface grieshoch，Carry out mechanical crushing with grinding pot again，Collect powder pulverized powder，Powder is poured in ball grinder，In alcohol full of under the protection in ball grinder，Ball-milling treatment is carried out with planetary ball mill，After ball milling 40 hours，Alloy powder is taken out the surface of the irony material for being put into clean planar，Naturally suction ripple micro mist is obtained final product after drying.
Embodiment two：
Gd is pressed with Gd, Fe, Ni simple substance2Fe7Ni8Atom ratio dispensing 10g，It is mixed after dispensing，Again mixture is carried out into melting with vacuum arc furnace ignition，After melting 1 time，By its reverse side，Melting 1 time again，Alloy pig is taken out after melting is uniform is put in quartz glass tube，By tube sealing technique，Glass tube is sealed to into low vacuum state，Glass tube is put in water after sealing，Check its whether good seal，If emerging without bubble，Then show that sealing is good，Take out glass tube，After wiped clean，Glass tube is put in high temperature furnace，Carry out Homogenization Treatments，Temperature setting is 550 DEG C，Glass tube is put in mixture of ice and water and is quenched by annealing after 12 days，Taking-up alloy pig to be cooled，Remove surface grieshoch，Carry out mechanical crushing with grinding pot again，Collect powder pulverized powder，Powder is poured in ball grinder，In alcohol full of under the protection in ball grinder，Ball-milling treatment is carried out with planetary ball mill，After ball milling 50 hours，Alloy powder is taken out the surface of the irony material for being put into clean planar，Naturally suction ripple micro mist is obtained final product after drying.
Embodiment three：
Gd is pressed with Gd, Fe, Ni simple substance2Fe15Ni2Atom ratio dispensing 15g，It is mixed after dispensing，Again mixture is carried out into melting with vacuum arc furnace ignition，After melting 1 time，By its reverse side，Melting 1 time again，Alloy pig is taken out after melting is uniform is put in quartz glass tube，By tube sealing technique，Glass tube is sealed to into low vacuum state，Glass tube is put in water after sealing，Check its whether good seal，If emerging without bubble，Then show that sealing is good，Take out glass tube，After wiped clean，Glass tube is put in high temperature furnace，Carry out Homogenization Treatments，Temperature setting is 600 DEG C，Glass tube is put in mixture of ice and water and is quenched by annealing after 10 days，Taking-up alloy pig to be cooled，Remove surface grieshoch，Carry out mechanical crushing with grinding pot again，Collect powder pulverized powder，Powder is poured in ball grinder，In alcohol full of under the protection in ball grinder，Ball-milling treatment is carried out with planetary ball mill，After ball milling 60 hours，Alloy powder is taken out the surface of the irony material for being put into clean planar，Naturally suction ripple micro mist is obtained final product after drying.
Claims (4)
1. a kind of new Gd-Fe-Ni alloys inhale ripple micro mist, it is characterised in that the preparation technology of the suction ripple micro mist comprises the steps：
(1) with Gd, Fe, Ni as raw material, and by Gd2Fe xNi17-x（2≤X≤15）Atom ratio dispensing；
(2) ingredients mixture is carried out into melting so as to be smelted into alloy pig；
(3) alloy pig is vacuum-sealed in quartz glass tube；
(4) sealing quartz glass tube is put in high temperature furnace again carries out Homogenization Treatments；
(5) glass tube is taken out after processing, in input mixture of ice and water Quenching Treatment is carried out；
(6) alloy pig is taken out, surface grieshoch is removed, then carries out mechanical preliminary crushing；
(7) powder pulverized powder is collected, powder is poured in ball grinder；
(8) pour protection liquid into toward ball grinder, till filling, cover cover, being put into ball mill carries out ball-milling treatment；
(9) alloy powder is taken out after ball milling terminates is dried, you can obtained a kind of alloy and inhale ripple micropowder material.
2. a kind of new Gd-Fe-Ni alloys according to claim 1 inhale ripple micro mist, it is characterised in that step (4) in, at 500-600 DEG C, the time is 10-15 days to Homogenization Treatments temperature control.
3. a kind of new Gd-Fe-Ni alloys according to claim 1 inhale ripple micro mist, it is characterised in that the protection liquid poured into is alcohol or gasoline.
4. a kind of new Gd-Fe-Ni alloys according to claim 1 inhale ripple micro mist, it is characterised in that step (8) in, Ball-milling Time is 40-60 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510722722.2A CN106623950A (en) | 2015-10-31 | 2015-10-31 | Novel Gd-Fe-Ni alloy wave absorbing micropowder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510722722.2A CN106623950A (en) | 2015-10-31 | 2015-10-31 | Novel Gd-Fe-Ni alloy wave absorbing micropowder |
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| CN106623950A true CN106623950A (en) | 2017-05-10 |
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| CN201510722722.2A Pending CN106623950A (en) | 2015-10-31 | 2015-10-31 | Novel Gd-Fe-Ni alloy wave absorbing micropowder |
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- 2015-10-31 CN CN201510722722.2A patent/CN106623950A/en active Pending
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Application publication date: 20170510 |