CN1552940A - High heat stability block ferromagnetic metal glas synthetic method - Google Patents
High heat stability block ferromagnetic metal glas synthetic method Download PDFInfo
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- CN1552940A CN1552940A CNA031333958A CN03133395A CN1552940A CN 1552940 A CN1552940 A CN 1552940A CN A031333958 A CNA031333958 A CN A031333958A CN 03133395 A CN03133395 A CN 03133395A CN 1552940 A CN1552940 A CN 1552940A
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- metal glass
- ferromagnetic metal
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- thermal stability
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Abstract
This invention relates to high thermally stable ferromagnetic metal glass blocks and their synthesis. The constituent of the said blocks comprises Co 35 - 45 at%, Fe 12 - 35 at%, Hf 2 - 10 at%, Mo 0 - 8 at%, Ti 2 - 8 at%, B 22 - 35 at%, and V 0 - 3 at%. The blocks can be prepared in copper molds, with excellent amorphization at >650 deg.C and the constituent designed more reasonable than the present materials, and used widely at higher temperature.
Description
Technical field
The present invention relates to ferromagnetic metal glass and technology of preparing, specifically a kind of high thermal stability block ferromagnetic metal glass and synthetic method.
Technical background
Ferromagnetic metal glass obtains important application as soft magnetic materials in many fields such as electronics, electric power national defence with characteristics such as its low-coercivity, high magnetic permeabilities.The method preparation that traditional metallic glass adopts rapid solidification obtains amorphous tissue to suppress nucleation in the process of setting and growth process, all is extremely thin band generally, and thickness is generally about 20～50 microns.Use the metallic glass band to turn to the electronic component or the transformer of various size shape again.Owing to can only make extremely thin band, limit its use range greatly.
Metallic substance all will form various dissimilar weave constructions through associating liquid nucleation growth process in process of setting, satisfy various performance needs.Different alloy phases is nucleation growth rate difference in liquid metal, and is relevant with structure type and unit cell dimension.Adopt this method to be unsuitable for producing glassy metal.In the block metal glass preparation process, usually adopt expensive high pure metal raw material, to reduce the heterogeneous forming core of its inside, obtain block metal glass, but cost is very high.
Summary of the invention
The purpose of this invention is to provide that a kind of cost is low, the high thermal stability block ferromagnetic metal glass and the synthetic method of applied range.
Purpose technical scheme of the present invention is:
Block ferromagnetic metal glass: based on cobalt, iron-based, press atomic percent, its alloying constituent constitutes Co:35～45%, Fe:12～35%, Hf:2～10%, Mo:0～8%, Ti:2～8%, B:22～35%, V:0～3% by following column element; Wherein: Co, Fe, Hf, the used element of Mo all is a technical purity, the purity of titanium is 99.5%～99.9%, uses industrial Fe-B or Co-B master alloy.
Its synthetic method: adopt arc melting to obtain mother alloy, by the method for induction heating suction pouring, suction casts onto in the copper mold, forms block ferromagnetic metal glass; Processing parameter is: inhale casting vacuum tightness 10
-5Pa～10
-5Pa, induction heating temperature are 1300 ℃～1550 ℃, and speed of cooling is 10
2K～10
3K/S.
Composition principle of the present invention is to design a kind of multicomponent alloy, precipitated phase is made up of the intermetallic compound of big unit cell dimension complex construction, nucleation rate is lower in its process of setting, just can suppress the appearance of crystalline state phase under lower speed of cooling, and obtains the glassy metal of block.
The present invention has following characteristics:
1. material component of the present invention adopts the cobalt of technical purity, iron, molybdenum, hafnium, titanium, cobalt boron, iron boron master alloy obtain a kind of novel block ferromagnetic metal glass by rational composition design, compare with ferromegnetism block metal glass in the prior art, its composition is reasonable in design, has the scope of broad, and has good amorphous formation ability, crystallization temperature is higher than 650 ℃, can use under comparatively high temps.
2. main raw material adopts industrial pure material in the alloy of the present invention, can reduce cost greatly; In addition, speed of cooling is lower, and is energy-conservation.
3. the novel ferro-cobalt bast block metal glass of the present invention adopts arc melting to obtain mother alloy, and the method preparation by the induction heating suction pouring does not need specific installation, and easy to operate, method is simple, and its product can reach the bar of millimeter magnitude, sheet material or tubing.
4. the novel ferro-cobalt bast block metal glass of the present invention can be at magneticsensor, obtains on mechanics sensor and the high-frequency electronic product using applied range.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1
Composition is Co
40Fe
20Hf
6Ti
2Mo
3B
29Alloy, select commercially pure Co for use, Fe, Hf, Ti, Mo and Co-B master alloy, technical purity is 98.5～99.9% (present embodiment is 99.9%).The purity of titanium is 99.9%, adopts arc melting to obtain mother alloy, 10
-5Utilize induction heating to 1400 ℃ under the Pa vacuum tightness, inhale and cast onto in the copper mold of diameter 1.5mm, speed of cooling is 10
2K/S, the block ferromagnetic metal glass of formation diameter 1.5mm.
With high temperature DSC thermal analyzer, with the heat-up rate of 20K/MIN, recording its crystallization temperature Tx is 720 ℃, in thermal treatment more than 1000 ℃ complete crystallization could take place.Measure with vibrating sample magnetometer, the attitude of quenching saturation magnetization is: 43emu/g, coercive force: 0.5A/m.
Embodiment 2
Difference from Example 1 is:
Composition is Co
40Fe
20Hf
6Ti
2V
3B
29Alloy adopt arc melting to obtain mother alloy, utilize the induction heating copper mold to form the block metal glass of diameter 1.5mm then; Wherein induction heating temperature is 1350 ℃, and vacuum tightness is 10
-5Pa.
With high temperature DSC thermal analyzer, with the heat-up rate of 20K/MIN, recording its crystallization temperature Tx is 677 ℃.Measure with vibrating sample magnetometer, the attitude of quenching saturation magnetization is 45emu/g, coercive force 0.5A/m.
Embodiment 3
Difference from Example 1 is:
Composition is Co
40Fe
22Hf
3Ti
6Mo
3B
26Alloy adopt arc melting to obtain mother alloy, utilize the induction heating copper mold to form the block metal glass of diameter 1.5mm then; Wherein induction heating temperature is 1550 ℃, and vacuum tightness is 10
-4Pa, speed of cooling is 10
3K/S.
With high temperature DSC thermal analyzer, with the heat-up rate of 20K/MIN, recording its crystallization temperature Tx is 635 ℃.
Embodiment 4
Difference from Example 1 is:
Composition is Co
42Fe
20Hf
4Ti
2Mo
3B
29Alloy adopt arc melting to obtain mother alloy, utilize the induction heating copper mold to form the block metal glass of diameter 1.5mm then; Wherein induction heating temperature is 1500 ℃, and vacuum tightness is 10
-4Pa, speed of cooling is 10
3K/S selects industrial Co-B master alloy for use.
With high temperature DSC thermal analyzer, with the heat-up rate of 20K/MIN, recording its crystallization temperature Tx is 627 ℃.
Embodiment 5
Difference from Example 1 is:
Composition is Co
35Fe
35Hf
2Ti
3Mo
3B
22Alloy adopt arc melting to obtain mother alloy, utilize the induction heating copper mold to form the block metal glass of diameter 1.5mm then; Wherein induction heating temperature is 1300 ℃, and vacuum tightness is 10
-4Pa, speed of cooling is 10
3K/S selects industrial Fe-B master alloy for use.
With high temperature DSC thermal analyzer, with the heat-up rate of 20K/MIN, recording its crystallization temperature Tx is 619 ℃.
Embodiment 6
Difference from Example 1 is:
Composition is Co
45Fe
12Hf
2Ti
3Mo
6B
32Alloy adopt arc melting to obtain mother alloy, utilize the induction heating copper mold to form the block metal glass of diameter 1.5mm then; Wherein induction heating temperature is 1450 ℃, and vacuum tightness is 10
-4Pa, speed of cooling is 10
3K/S selects industrial Co-B master alloy for use.
With high temperature DSC thermal analyzer, with the heat-up rate of 20K/MIN, recording its crystallization temperature Tx is 660 ℃.
Comparative example 1
Co
43Fe
20Ta
5.5B
31.5(document 1:H.Koshiba, A.Inoue, Materials Transcations42 (12): 2572-2575dec2001), raw material all adopts the high pure raw material more than 99.99%, obtain diameter and be 2 millimeters ferromegnetism block metal glass, saturation magnetization Bs=0.49T, coercivity H=0.25A/m.
Comparative example 2
Fe
56Co
7Zr
8Ni
7Nb
2B
20, (document 2:A.Inoue, T.Zhang and H.Koshiba, J.Appl.Phys, 83 (1998) 6326) sample size is 2 millimeters of diameters, and saturation magnetization is: 0.96T, coercive force are 2A/m, and crystallization temperature is 630 ℃.
Comparative example 3
Fe
73Ga
2Al
5P
11B
4C
5(document 3:A.Inoue, Y. Shinohara and J.S.GookMater.Trans.JIM.36 (1995) 1427-1433) sample size is 2 millimeters a diameter, and crystallization temperature is 530 ℃, and saturation magnetization is 1.26T, and coercive force is 82A/m.
Claims (5)
1. high thermal stability block ferromagnetic metal glass, it is characterized in that: based on cobalt, iron-based, press atomic percent, its alloying constituent constitutes Co:35～45% by following column element, Fe:12～35%, Hf:2～10%, Mo:0～8%, Ti:2～8%, B:22～35%, V:0～3%.
2. by the described high thermal stability block of claim 1 ferromagnetic metal glass, it is characterized in that: composition Mo:2～8% wherein, V:1～3%.
3. by claim 1 or 2 described high thermal stability block ferromagnetic metal glass, it is characterized in that: Co, Fe, Hf, Mo, Ti, the used element of V is a technical purity all, uses industrial Fe-B or Co-B master alloy.
4. by the described high thermal stability block of claim 3 ferromagnetic metal glass, it is characterized in that: the purity of titanium is 99.5%～99.9%.
5. synthetic method by the described high thermal stability block of claim 1 ferromagnetic metal glass, it is characterized in that: adopt arc melting to obtain mother alloy, induction heating makes its fusing, and suction pouring forms block metal glass in copper mold; Processing parameter is: inhale casting vacuum tightness 10
-3Pa～10
-5Pa, induction heating temperature are 1300 ℃～1550 ℃, and speed of cooling is 10
2K～10
3K/S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133395 CN1256460C (en) | 2003-05-27 | 2003-05-27 | High heat stability block ferromagnetic metal glas synthetic method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133395 CN1256460C (en) | 2003-05-27 | 2003-05-27 | High heat stability block ferromagnetic metal glas synthetic method |
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| Publication Number | Publication Date |
|---|---|
| CN1552940A true CN1552940A (en) | 2004-12-08 |
| CN1256460C CN1256460C (en) | 2006-05-17 |
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ID=34323046
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03133395 Expired - Fee Related CN1256460C (en) | 2003-05-27 | 2003-05-27 | High heat stability block ferromagnetic metal glas synthetic method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856030A (en) * | 2012-09-10 | 2013-01-02 | 顾建 | Soft magnetic alloy material |
| EP2668307A4 (en) * | 2011-01-28 | 2015-03-04 | California Inst Of Techn | Forming of ferromagnetic metallic glass by rapid capacitor discharge |
| US9067258B2 (en) | 2008-03-21 | 2015-06-30 | California Institute Of Technology | Forming of metallic glass by rapid capacitor discharge forging |
| US9297058B2 (en) | 2008-03-21 | 2016-03-29 | California Institute Of Technology | Injection molding of metallic glass by rapid capacitor discharge |
| US9309580B2 (en) | 2008-03-21 | 2016-04-12 | California Institute Of Technology | Forming of metallic glass by rapid capacitor discharge |
| US9393612B2 (en) | 2012-11-15 | 2016-07-19 | Glassimetal Technology, Inc. | Automated rapid discharge forming of metallic glasses |
| US9463498B2 (en) | 2008-03-21 | 2016-10-11 | California Institute Of Technology | Sheet forming of metallic glass by rapid capacitor discharge |
| US9845523B2 (en) | 2013-03-15 | 2017-12-19 | Glassimetal Technology, Inc. | Methods for shaping high aspect ratio articles from metallic glass alloys using rapid capacitive discharge and metallic glass feedstock for use in such methods |
| US10022779B2 (en) | 2014-07-08 | 2018-07-17 | Glassimetal Technology, Inc. | Mechanically tuned rapid discharge forming of metallic glasses |
| US10029304B2 (en) | 2014-06-18 | 2018-07-24 | Glassimetal Technology, Inc. | Rapid discharge heating and forming of metallic glasses using separate heating and forming feedstock chambers |
| US10213822B2 (en) | 2013-10-03 | 2019-02-26 | Glassimetal Technology, Inc. | Feedstock barrels coated with insulating films for rapid discharge forming of metallic glasses |
| US10273568B2 (en) | 2013-09-30 | 2019-04-30 | Glassimetal Technology, Inc. | Cellulosic and synthetic polymeric feedstock barrel for use in rapid discharge forming of metallic glasses |
| US10632529B2 (en) | 2016-09-06 | 2020-04-28 | Glassimetal Technology, Inc. | Durable electrodes for rapid discharge heating and forming of metallic glasses |
| US10682694B2 (en) | 2016-01-14 | 2020-06-16 | Glassimetal Technology, Inc. | Feedback-assisted rapid discharge heating and forming of metallic glasses |
-
2003
- 2003-05-27 CN CN 03133395 patent/CN1256460C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9463498B2 (en) | 2008-03-21 | 2016-10-11 | California Institute Of Technology | Sheet forming of metallic glass by rapid capacitor discharge |
| US9067258B2 (en) | 2008-03-21 | 2015-06-30 | California Institute Of Technology | Forming of metallic glass by rapid capacitor discharge forging |
| US9297058B2 (en) | 2008-03-21 | 2016-03-29 | California Institute Of Technology | Injection molding of metallic glass by rapid capacitor discharge |
| US9309580B2 (en) | 2008-03-21 | 2016-04-12 | California Institute Of Technology | Forming of metallic glass by rapid capacitor discharge |
| US9745641B2 (en) | 2008-03-21 | 2017-08-29 | California Institute Of Technology | Forming of metallic glass by rapid capacitor discharge |
| EP2668307A4 (en) * | 2011-01-28 | 2015-03-04 | California Inst Of Techn | Forming of ferromagnetic metallic glass by rapid capacitor discharge |
| CN102856030A (en) * | 2012-09-10 | 2013-01-02 | 顾建 | Soft magnetic alloy material |
| US9393612B2 (en) | 2012-11-15 | 2016-07-19 | Glassimetal Technology, Inc. | Automated rapid discharge forming of metallic glasses |
| US9845523B2 (en) | 2013-03-15 | 2017-12-19 | Glassimetal Technology, Inc. | Methods for shaping high aspect ratio articles from metallic glass alloys using rapid capacitive discharge and metallic glass feedstock for use in such methods |
| US10273568B2 (en) | 2013-09-30 | 2019-04-30 | Glassimetal Technology, Inc. | Cellulosic and synthetic polymeric feedstock barrel for use in rapid discharge forming of metallic glasses |
| US10213822B2 (en) | 2013-10-03 | 2019-02-26 | Glassimetal Technology, Inc. | Feedstock barrels coated with insulating films for rapid discharge forming of metallic glasses |
| US10029304B2 (en) | 2014-06-18 | 2018-07-24 | Glassimetal Technology, Inc. | Rapid discharge heating and forming of metallic glasses using separate heating and forming feedstock chambers |
| US10022779B2 (en) | 2014-07-08 | 2018-07-17 | Glassimetal Technology, Inc. | Mechanically tuned rapid discharge forming of metallic glasses |
| US10682694B2 (en) | 2016-01-14 | 2020-06-16 | Glassimetal Technology, Inc. | Feedback-assisted rapid discharge heating and forming of metallic glasses |
| US10632529B2 (en) | 2016-09-06 | 2020-04-28 | Glassimetal Technology, Inc. | Durable electrodes for rapid discharge heating and forming of metallic glasses |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1256460C (en) | 2006-05-17 |
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