CN106555078A - A kind of Dy-Co-Sn alloys inhale the preparation method of ripple micro mist - Google Patents
A kind of Dy-Co-Sn alloys inhale the preparation method of ripple micro mist Download PDFInfo
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- CN106555078A CN106555078A CN201510636373.2A CN201510636373A CN106555078A CN 106555078 A CN106555078 A CN 106555078A CN 201510636373 A CN201510636373 A CN 201510636373A CN 106555078 A CN106555078 A CN 106555078A
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Abstract
The present invention relates to a kind of Dy-Co-Sn alloys inhale the preparation method of ripple micro mist.The method is：DyCo is pressed with metal Dy, Co, Sn simple substance14The atomic ratio dispensing mixing of Sn, the raw material of mixing is carried out into melting with vacuum arc furnace ignition, after being smelted into the uniform alloy pig of composition, taking-up is put in quartz glass tube, to be evacuated in glass tube, and by ferrule, put into after sealing in water, see whether that bubble is emerged, show that sealing is good without bubble, again quartz glass tube is put in chamber type electric resistance furnace carries out homogenizing annealing process, glass tube is put into mixture of ice and water after annealing to be quenched, taking-up alloy pig to be cooled, alloy pig is carried out into mechanical crushing, then powder is poured in ball grinder, pouring alcohol again into fills up ball grinder, cover cover, being put on planetary ball mill carries out ball milling, alloy powder is taken out after ball milling and dried, a kind of alloy can be obtained and inhale ripple micropowder material.
Description
Technical field
The present invention relates to a kind of alloy inhales the preparation method of ripple micropowder material, more particularly to a kind of Dy-Co-Sn alloys inhale ripple micropowder material and preparation method thereof.
Background technology
Absorbing material refers to the energy that the electromagnetic wave on surface can be transformed into other forms to greatest extent, to dissipate, decay or electromagnetic wave absorption energy, so as to reach the class functional material for reducing or eliminating reflection of electromagnetic wave purpose.In broad terms, it includes electromagnetism interference (EMI) and microwave absorbing material (RAM), or even including the wide spectrum from sound wave to infrared absorbing material, and its range of application is also constantly extending.Now, the application of absorbing material is stealthy and anti-stealth far beyond military affairs, resist and oppose anti-scope, it is more widely used in the electromagnetic interference of human-body safety protection, microwave dark room abatement apparatus, communication and navigation system, security information to maintain secrecy, improve overall performance, improve signal to noise ratio, electromagnetic compatibility, and many aspects such as waveguide or coaxial absorber element.
Traditional absorbing material mainly has ferrite wave-absorbing material and ferromagnetic metal alloy micro mist etc..Sheet soft magnetic metal micro mist is more and more due to the atomicity in surface, the special construction of high concentration crystal boundary and crystal boundary atom causes material under the radiation of electromagnetic field, atom, electron motion aggravation, promote magnetization, electromagnetic energy is made to be heat energy, so as to increased the absorption to electromagnetic wave, there are larger saturation magnetization and grain shape effect, there is good application prospect as radio-radar absorber.Magnetically soft alloy micro mist mainly has Fe, Co, Ni and its alloy powder etc. at present.
Co bases soft magnetic materials has higher saturation magnetization, magnetic conductivity, relatively low coercivity and small loss and other features, therefore is widely used in military and civilian suction ripple field.Rare earth element is because of its special process based prediction model, particularly special electricity, light, magnetic and catalytic performance and be described as the treasure-house of new material, due to the special electricity of rare earth, magnetic property and the requirement new to absorbing material, people have found binding site new between both in heuristic process --- rare earth absorbing material.Rare earth absorbing material is a class absorbing material of development newly developed, it is with rareearth magnetic material as absorbent, the Dy-Co alloy absorbing materials for having lot of documents report to prepare with Dy, Co as raw material, but it is narrower that the absorbing material inhales wave frequency band, and by mixing the different types of absorbing medium of people, the accumulative effect of part can be produced, its absorption band also substantially increases, be very favorable to effective Absorber Bandwidth of broadening material.The present invention usually prepares a kind of excellent combination property alloy suction ripple micropowder material by mixing Sn units.
The content of the invention
The present invention provides the preparation method that a kind of Dy-Co-Sn types alloy inhales ripple micropowder material, and the preparation method comprises the steps：
(1) metal Dy, Co, Sn are used（Purity is more than 99.5%）Simple substance presses DyCo14The atomic ratio dispensing mixing of Sn；
(2) the raw material of mixing is carried out into melting with vacuum arc furnace ignition so as to be smelted into the uniform alloy pig of composition；
(3) alloy pig is put in quartz glass tube carries out vacuum sealing；
(4) the glass tube equipped with alloy pig is put in high temperature furnace, carries out Homogenization Treatments；
(5) quenched after Homogenization Treatments；
(6) alloy pig is taken out after quenching carries out mechanical crushing in grinding pot；
(7) powder pulverized powder is collected, powder is poured in ball grinder, under the protection in alcohol is full of ball grinder, ball-milling treatment is carried out with planetary ball mill；
(8) alloy powder is taken out after ball milling terminates and dried, you can obtained a kind of alloy and inhale ripple micropowder material.
Preferentially, step (4) in, at 400-500 DEG C, the time is 12-15 days to Homogenization Treatments temperature control.
Preferentially, step (7) in, planetary ball mill speeds control 200-300r/min operation, Ball-milling Time be 60-90 hours.
Specific embodiment
Embodiment one：
With metal Dy, Co, Sn（Purity is more than 99.5%）Simple substance presses DyCo14The mixture of atomic ratio dispensing 10g of Sn，The raw material of mixing is carried out into melting with vacuum arc furnace ignition，Alloy melting 2-3 time，After being smelted into the uniform alloy pig of composition，Taking-up is put in quartz glass tube，To be evacuated in glass tube，And by ferrule，Put in water after sealing，See whether that bubble is emerged，Show that sealing is good without bubble，Again quartz glass tube is put in chamber type electric resistance furnace，Homogenizing annealing process is carried out under the conditions of 400 DEG C，Glass tube is put into mixture of ice and water after 12 days and is quenched by annealing，Taking-up alloy pig to be cooled，Alloy pig is carried out into mechanical crushing，Collect powder pulverized powder，Then powder is poured in ball grinder，Pouring alcohol again into fills up ball grinder，Cover cover，Being put on planetary ball mill carries out ball milling，Ball milling speed is controlled to 200r/min，After ball milling 80 hours，Alloy powder is taken out and is dried，Obtain final product suction ripple micropowder material.
Embodiment two：
With metal Dy, Co, Sn（Purity is more than 99.5%）Simple substance presses DyCo14The mixture of atomic ratio dispensing 20g of Sn，The raw material of mixing is carried out into melting with vacuum arc furnace ignition，Alloy melting 2-3 time，After being smelted into the uniform alloy pig of composition，Taking-up is put in quartz glass tube，To be evacuated in glass tube，And by ferrule，Put in water after sealing，See whether that bubble is emerged，Show that sealing is good without bubble，Again quartz glass tube is put in chamber type electric resistance furnace，Homogenizing annealing process is carried out under the conditions of 450 DEG C，Glass tube is put into mixture of ice and water after 13 days and is quenched by annealing，Taking-up alloy pig to be cooled，Alloy pig is carried out into mechanical crushing，Collect powder pulverized powder，Then powder is poured in ball grinder，Pouring alcohol again into fills up ball grinder，Cover cover，Being put on planetary ball mill carries out ball milling，Ball milling speed is controlled to 300r/min，After ball milling 60 hours，Alloy powder is taken out and is dried，Obtain final product suction ripple micropowder material.
Embodiment three：
With metal Dy, Co, Sn（Purity is more than 99.5%）Simple substance presses DyCo14The mixture of atomic ratio dispensing 30g of Sn，The raw material of mixing is carried out into melting with vacuum arc furnace ignition，Alloy melting 2-3 time，After being smelted into the uniform alloy pig of composition，Taking-up is put in quartz glass tube，To be evacuated in glass tube，And by ferrule，Put in water after sealing，See whether that bubble is emerged，Show that sealing is good without bubble，Again quartz glass tube is put in chamber type electric resistance furnace，Homogenizing annealing process is carried out under the conditions of 500 DEG C，Glass tube is put into mixture of ice and water after 15 days and is quenched by annealing，Taking-up alloy pig to be cooled，Alloy pig is carried out into mechanical crushing，Collect powder pulverized powder，Then powder is poured in ball grinder，Pouring alcohol again into fills up ball grinder，Cover cover，Being put on planetary ball mill carries out ball milling，Ball milling speed is controlled to 250r/min，After ball milling 90 hours，Alloy powder is taken out and is dried，Obtain final product suction ripple micropowder material.
Claims (3)
1. a kind of Dy-Co-Sn alloys inhale the preparation method of ripple micro mist, it is characterised in that the preparation method comprises the steps：
(1) DyCo is pressed with metal Dy, Co, Sn simple substance14The atomic ratio dispensing mixing of Sn；
(2) the raw material of mixing is carried out into melting with vacuum arc furnace ignition so as to be smelted into the uniform alloy pig of composition；
(3) alloy pig is put in quartz glass tube carries out vacuum sealing；
(4) the glass tube equipped with alloy pig is put in high temperature furnace, carries out Homogenization Treatments；
(5) quenched after Homogenization Treatments；
(6) alloy pig is taken out after quenching carries out mechanical crushing in grinding pot；
(7) powder pulverized powder is collected, powder is poured in ball grinder, under the protection in alcohol is full of ball grinder, ball-milling treatment is carried out with planetary ball mill；
(8) alloy powder is taken out after ball milling terminates and dried, you can obtained a kind of alloy and inhale ripple micropowder material.
2. a kind of Dy-Co-Sn alloys according to claim 1 inhale the preparation method of ripple micro mist, it is characterised in that step (4) in, at 400-500 DEG C, the time is 12-15 days to Homogenization Treatments temperature control.
3. a kind of Dy-Co-Sn alloys according to claim 1 inhale the preparation method of ripple micro mist, it is characterised in that step (7) in, planetary ball mill speeds control 200-300r/min operations, Ball-milling Time are 60-90 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510636373.2A CN106555078A (en) | 2015-09-30 | 2015-09-30 | A kind of Dy-Co-Sn alloys inhale the preparation method of ripple micro mist |
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| CN201510636373.2A CN106555078A (en) | 2015-09-30 | 2015-09-30 | A kind of Dy-Co-Sn alloys inhale the preparation method of ripple micro mist |
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| CN106555078A true CN106555078A (en) | 2017-04-05 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846220A (en) * | 2015-05-10 | 2015-08-19 | 黄鹏腾 | Alloy microwave absorbing material added with vanadium and preparation method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846220A (en) * | 2015-05-10 | 2015-08-19 | 黄鹏腾 | Alloy microwave absorbing material added with vanadium and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 潘顺康等: "Dy和Al对Fe-Co合金微波吸收性能的影响", 《稀有金属材料与工程》 * |
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Application publication date: 20170405 |
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