CN114346237A - Application of amorphous alloy, composite material and preparation method thereof - Google Patents
Application of amorphous alloy, composite material and preparation method thereof Download PDFInfo
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Abstract
The application relates to the technical field of amorphous alloy materials, in particular to application of an amorphous alloy, a composite material and a preparation method of the amorphous alloy. Experiments prove that the amorphous alloy has certain adhesive force in the softening process, and the amorphous alloy can be used as a binder and can be mixed with materials with different properties for hot-pressing bonding to obtain corresponding composite materials, so that a new technical thought is provided for preparing various composite materials, and the amorphous alloy has good application prospect when being used as the binder.
Description
Technical Field
The application belongs to the technical field of amorphous alloy materials, and particularly relates to application of an amorphous alloy, a composite material and a preparation method of the amorphous alloy.
Background
For most of the time in history, smelting materials is generally done by human empirical judgment, which is an effective method for developing materials with desirable properties. However, combining two or more materials into a composite material is currently an effective strategy for producing materials with customizable properties.
Currently, composite materials with customizable properties suffer from the following problems: 1) although thermosetting or thermoplastic polymer materials having adhesive properties have excellent adhesive properties, the intrinsic properties of the materials are not outstanding compared with those of metal materials, and the overall properties of the resulting composite material are often not satisfactory. 2) Metal materials with excellent properties often lack cohesiveness, and thus, the process flow for preparing the corresponding composite materials is complicated.
Disclosure of Invention
The application aims to provide application of an amorphous alloy, a composite material and a preparation method thereof, and aims to solve the technical problem of how to realize a metal binder.
In order to achieve the purpose of the application, the technical scheme adopted by the application is as follows:
in a first aspect, the present application provides the use of an amorphous alloy as a binder.
In a second aspect, the present application provides a method of making a composite material, comprising: the amorphous alloy is used as a binder and is mixed with a functional material to be subjected to hot pressing treatment.
In a third aspect, the present application provides a composite material prepared by the preparation method described herein.
The application proves that the amorphous alloy has certain adhesive force in the softening process through experiments, the amorphous alloy can be used as a binder and materials with different properties to be mixed and thermally pressed for bonding to obtain a corresponding composite material, a new technical idea is provided for preparing various composite materials, and therefore the amorphous alloy has good application prospect as the binder.
The application provides a preparation method of a composite material and the corresponding composite material obtained by the preparation method, amorphous alloy is used as a binder and is mixed with functional materials to be subjected to hot pressing treatment, and various functional materials are bonded by adhesion force in the softening process of the amorphous alloy, so that the corresponding composite material is obtained; by utilizing the preparation method, the performance of the composite material can be regulated and controlled by regulating the using amount of the amorphous alloy as the metal binder, so that a new technical idea is provided for preparing various composite materials with adjustable and controllable excellent performances, and the preparation method has a good application prospect in the preparation process of the composite materials.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is La, an amorphous alloy, obtained in example 155Al25Ni5Cu10Co5And a detection diagram of the composite material prepared by mixing the high-entropy alloy and the high-entropy alloy in a mass ratio of 5: 5; a is a transmission electron microscope image at the interface, and b is an oxygen content change curve chart scanned by an energy spectrum line; line1 represents position 1, Line2 represents position 2, Line3 represents position 3;
FIG. 2 is La, an amorphous alloy, obtained in example 155Al25Ni5Cu10Co5The mechanical property diagram of the composite material is prepared by mixing the high-entropy alloy and the high-entropy alloy in different proportions;
FIG. 3 is La, an amorphous alloy, obtained in example 255Al25Ni5Cu10Co5And iron-based alloy Fe78Si9B13The magnetic performance diagram of the composite material is prepared by mixing the components in different proportions;
FIG. 4 shows La which is an amorphous alloy in example 355Al25Ni5Cu10Co5And ceramic powder in different proportions to prepare the conductive property pattern of the composite material.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly apparent, the present application is further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In this application, the term "and/or" describes an association relationship of associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a is present alone, A and B are present simultaneously, and B is present alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the present application, "at least one" means one or more, "plural" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items.
It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The weight of the related components mentioned in the description of the embodiments of the present application may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, the content of the related components is scaled up or down within the scope disclosed in the description of the embodiments of the present application as long as it is scaled up or down according to the description of the embodiments of the present application. Specifically, the mass described in the specification of the embodiments of the present application may be a mass unit known in the chemical industry field such as μ g, mg, g, kg, etc.
The first aspect of the embodiments of the present application provides an application of an amorphous alloy, and particularly, the amorphous alloy is used as a binder.
Experiments show that the amorphous alloy has certain adhesive force in the softening process, so that the amorphous alloy can be used as a binder to be mixed with materials with different properties and subjected to hot-pressing bonding to obtain a corresponding composite material, and the possibility is provided for the metal material with specific excellent properties to be used as the binder for preparing the composite material, so that a new technical thought is provided for preparing various composite materials, and therefore, the amorphous alloy used as the binder in the embodiment of the application has a good application prospect.
In some embodiments, the amorphous alloy used as the binder may include amorphous alloy Laa1Alb1Nic1Cud1Coe1Amorphous alloy Zra2Tib2Cuc2Nid2Bee2Amorphous alloy Ma3Cub3Nic3Pd3Amorphous alloy Mga4Cub4REc4At least one of (1).
Specifically, lanthanum-based amorphous alloy La may be used as the bindera1Alb1Nic1Cud1Coe1(ii) a Wherein, a1+ b1+ c1+ d1+ e1 is 100; a1, b1, c1, d1 and e1 are all larger than 0. Furthermore, a1 is more than or equal to 50 and less than or equal to 60, b1 is more than or equal to 20 and less than or equal to 30, c1 is more than or equal to 1 and less than or equal to 10, d1 is more than or equal to 5 and less than or equal to 15, and e1 is more than or equal to 1 and less than or equal to 10. For example, in the embodiment of the present application, La may be used55Al25Ni5Cu10Co5。
Specifically, as the binder, there may be used a zirconium-based amorphous alloy Zra2Tib2Cuc2Nid2Bee2(ii) a Wherein, a2+ b2+ c2+ d2+ e2 ═ c100, respectively; a2, b2, c2, d2 and e2 are all larger than 0. Furthermore, a2 is more than or equal to 35 and less than or equal to 45, b2 is more than or equal to 10 and less than or equal to 15, c2 is more than or equal to 10 and less than or equal to 30, d2 is more than or equal to 5 and less than or equal to 15, and e2 is more than or equal to 20 and less than or equal to 28. For example, in the embodiment of the present application, Zr may be mentioned41.2Ti13.8Cu12.5Ni10Be22.5Or Zr35Ti30Cu8.25Be26.75。
In particular, as binder there may be used a platinum-or palladium-based amorphous alloy Ma3Cub3Nic3Pd3(ii) a Wherein a3+ b3+ c3+ d3 is 100, and M is Pt element or Pd element; a3, b3, c3 and d3 are all larger than 0. Furthermore, a3 is more than or equal to 55 and less than or equal to 60, b3 is more than or equal to 10 and less than or equal to 15, c3 is more than or equal to 2 and less than or equal to 10, and d3 is more than or equal to 20 and less than or equal to 25. For example, in the embodiment of the present application, Pt may be used57.5Cu14.7Ni5.3P22.5。
In particular, magnesium-based amorphous alloy Mg may be used as the bindera4Cub4REc4(ii) a Wherein a4+ b4+ c4 is 100, and RE is rare earth elements such as Y, Er, Tb, Sm, La, Ce and the like; a4, b4, c4 are all greater than 0. Further, a4 is more than or equal to 60 and less than or equal to 70, b4 is more than or equal to 20 and less than or equal to 30, and c4 is more than or equal to 5 and less than or equal to 15. For example, in the embodiment of the present application, Mg may be used65Cu25Y10。
In the general formula of the amorphous alloy, a1, b1, c1, d1, e1, a2, b2, c2, d2, e2, a3, b3, c3, d3, a4, b4 and c4 all represent atomic percentages.
In a second aspect, embodiments of the present application provide a method for preparing a composite material, the method comprising the steps of: the amorphous alloy is used as a binder and is mixed with a functional material to be subjected to hot pressing treatment.
According to the embodiment of the application, after the amorphous alloy has a certain adhesive force in the softening process, the amorphous alloy is used as a binder and is mixed with functional materials to be subjected to hot pressing treatment, and various functional materials are bonded through the adhesive force in the softening process of the amorphous alloy, so that a corresponding composite material is obtained; by utilizing the preparation method, the performance of the composite material can be regulated and controlled by regulating the using amount of the amorphous alloy as the metal binder, so that a new technical idea is provided for preparing various composite materials with adjustable and controllable excellent performances, and the preparation method has a good application prospect in the preparation process of the composite materials.
In some embodiments, the amorphous alloy used as the binder and the functional material mixed and then hot-pressed includes amorphous alloy Laa1Alb1Nic1Cud1Coe1Amorphous alloy Zra2Tib2Cuc2Nid2Bee2Amorphous alloy Ma3Cub3Nic3Pd3Amorphous alloy Mga4Cub4REc4At least one of; in particular, the description of the amorphous alloy species is referred to above.
In some embodiments, the functional material is a material having certain intrinsic properties, such as a material having certain mechanical, magnetic or electrical conductivity properties, and may specifically include High-entropy alloys (HEA), Ceramics (Ceramics), Fe78Si9B13At least one of amorphous. Specifically, the functional material can be functional material powder with the particle size of less than 200 μm, such as 10-180 μm; the amorphous alloy used as the binder can be amorphous alloy powder passing through an 80-mesh screen, so that the amorphous alloy powder and the amorphous alloy powder can be better dispersed and uniformly mixed.
In some embodiments, the mass ratio of amorphous alloy to functional material is (8: 2) to (2: 8), e.g., 8:2,6: 4,5: 5,4: 6,2: 8, and the like. According to the embodiment of the application, the amorphous alloy used as the binder can be compounded with the functional material by regulating the using amount of the amorphous alloy, so that the regulation and control of the performance can be realized.
In some embodiments, the autoclaving process includes: and pressing mixed powder obtained by mixing the amorphous alloy used as the binder and the functional material under the pressure of 420-500 MPa at the temperature of 450-700K. Under the conditions, the amorphous alloy can be better softened and bonded with functional materials. Wherein different amorphous alloys can be pressed under different temperature conditions, e.g. La-based amorphous alloy Laa1Alb1Nic1Cud1Coe1Can be pressed at the temperature of 450-550K, and the Zr-based amorphous alloy Zra2Tib2Cuc2Nid2Bee2Can be pressed at the temperature of 650-680K, and the Mg-based amorphous alloy Mga4Cub4REc4The pressure can be applied under the temperature condition of 450-480K.
In some embodiments, the autoclave is performed under a vacuum of 2.5 to 3.5 × 10-3Pa in the chamber. Specifically, mixed powder obtained by mixing amorphous alloy and functional material is placed into a mold, and then the mold is placed into a vacuum degree of 2.5-3.5 multiplied by 10-3And pressing at the temperature in a vacuum hot-pressing cavity of Pa. And subsequently, when the temperature is reduced to room temperature (25-27 ℃), taking the mold and the sample out of the vacuum cavity.
In the examples of the present application, amorphous alloy La was used55Al25Ni5Cu10Co5The preparation experiment of the composite material is carried out as a binder. Wherein, the amorphous alloy La is prepared by a melt-spun method55Al25Ni5Cu10Co5The preparation method comprises the following steps: (1.1) smelting a master alloy ingot: preparing raw materials of La, Al, Ni, Cu and Co with the purity higher than 99.99 percent, and smelting the raw materials into La, Al, Ni, Cu and Co in vacuum in an argon environment55Al25Ni5Cu10Co5Repeatedly smelting the master alloy ingot for 4 times to ensure that the components are uniformly mixed; (1.2) crushing the master alloy ingot, putting the crushed master alloy ingot into a high-temperature quartz tube, putting the high-temperature quartz tube into a vacuum flail machine, introducing high-pressure airflow into the upper end of the quartz tube after induction heating to a molten state, blowing the molten alloy out of an opening at the lower part of the quartz tube by the airflow, and rapidly cooling the molten alloy to form a strip-shaped La alloy when the molten alloy touches a low-temperature copper roller rotating at a high speed55Al25Ni5Cu10Co5An amorphous strip with a thickness of 10-40 μm; (1.3) cutting the amorphous strips into small sections, and passing through a screen with the mesh number of 80 to prepare La55Al25Ni5Cu10Co5Amorphous powder. To obtain La55Al25Ni5Cu10Co5The preparation of the composite material is carried out after the amorphous powder, and the specific steps comprise: (2.1) adding La55Al25Ni5Cu10Co5Amorphous powder and having a particle size of less than 200 μmThe powders are mixed in different mass proportions (the powders comprise high-entropy alloy powder, ceramic powder or Fe78Si9B13Amorphous powder) and uniformly stirring the mixed powder by a mechanical stirring mode. (2.2) hot pressing process flow: placing the mixed powder into a die; then placing the mold into a vacuum degree of 2.5-3.5 multiplied by 10-3Pa vacuum hot pressing cavity. And raising the temperature of the cavity, applying a pressure of 420-500 MPa to the mold when the temperature is raised to 450-550K, keeping the pressure for 1-2 minutes, and removing the pressure. And when the temperature is reduced to the room temperature, taking the mold and the sample out of the vacuum cavity.
In a third aspect of the embodiments of the present application, there is provided a composite material prepared by the above-described method for preparing a composite material according to the embodiments of the present application.
The composite material is prepared by the special preparation method, amorphous alloy is used as a binder and is mixed with functional materials, then hot pressing treatment is carried out, and various functional materials are bonded through the adhesive force in the softening process of the amorphous alloy, so that the corresponding composite material is obtained; the composite material can realize the performance regulation and control of the composite material by adjusting the using amount of the amorphous alloy as the metal binder.
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Source of functional material powder: available from disco new alloy materials (changzhou) limited.
The following description will be given with reference to specific examples.
Example 1
Mixing amorphous alloy La55Al25Ni5Cu10Co5(denoted by La based MG) was used as a binder to mix with a high entropy alloy (denoted by HEA) to prepare a composite material comprising the steps of:
step 1: la to be screened by a 80-mesh screen55Al25Ni5Cu10Co5The amorphous powder and the purchased high-entropy alloy powder (cobalt chromium iron nickel manganese) are mixed according to different mass ratios (La)55Al25Ni5Cu10Co5: high entropy alloy 8:2, 6:4, 5:5, 4:6, 2:8), and the mixed powder after mixing uniformly is stored in a vacuum environment to prevent oxidation.
Step 2: the mixed powder was removed from the vacuum and placed in a mold. When the vacuum degree in the vacuum hot-pressing cavity reaches 3 multiplied by 10-3And Pa, feeding the mold for placing the sample into the cavity. The interior of the chamber was then heated and when the temperature reached 500K, 460MPa was applied to the mold and held for one minute. And after the pressure maintaining is finished, taking the sample out of the cavity when the temperature in the cavity is reduced to the room temperature. The powder is hot pressed to form a block in the process.
And (3) performance testing:
(1) la55Al25Ni5Cu10Co5: and (3) polishing the surface of a composite material block prepared by mixing the high-entropy alloy (5: 5), cutting the interface between the amorphous alloy and the high-entropy alloy by using a focused ion beam, and observing the interface under a transmission electron microscope. The results obtained from the observation are shown in a of fig. 1, and then the results obtained from the line scan of the oxygen content variation at three different positions using the energy spectrum are shown in b of fig. 1. As can be seen from the figure: when Line1, Line3 were used for the combined scan, the change in oxygen element did not fluctuate significantly. In contrast, a sudden change in oxygen element occurs in the middle portion of Line2, which is caused by the oxide layer. The presence of the oxide layer hindered the bonding, corresponding to the observed results. It discloses an amorphous alloy La55Al25Ni5Cu10Co5The combination of the metal binder and the high-entropy alloy is a mode of breaking through an oxide layer to form excellent combination.
(2) La55Al25Ni5Cu10Co5The composite material block prepared by the high-entropy alloy according to different mass ratios is designed according to the length-diameter ratio of a standard compression sample and then is used for 0.001s-1Strain rate compression testing was performed and the results are shown in figure 2. As can be seen from the figure: with La55Al25Ni5Cu10Co5Control of mass ratio, of composite materialsThe compression strength is regularly regulated and controlled.
Example 2
Mixing amorphous alloy La55Al25Ni5Cu10Co5(expressed as La-based MG) as a binder with Fe-based alloy78Si9B13(expressed as Fe-based MG) were mixed to prepare a composite material, comprising the following steps:
step 1: la to be screened by a 80-mesh screen55Al25Ni5Cu10Co5Amorphous powder and purchase of Fe78Si9B13Amorphous alloy powder according to different mass ratios (La)55Al25Ni5Cu10Co5：Fe78Si9B138:2, 6:4, 5:5, 4:6, 2:8), and the uniformly mixed powder is stored in a vacuum environment to prevent oxidation.
Step 2: the mixed powder was removed from the vacuum and placed in a mold. When the vacuum degree in the vacuum hot-pressing cavity reaches 3 multiplied by 10-3And Pa, feeding the mold for placing the sample into the cavity. The interior of the chamber was then heated and when the temperature reached 500K, 460MPa was applied to the mold and held for one minute. And after the pressure maintaining is finished, taking the sample out of the cavity when the temperature in the cavity is reduced to the room temperature. The powder is hot pressed to form a block in the process.
And (3) performance testing:
the prepared composite material block was subjected to a magnetic test, and the results of the test are shown in fig. 3. As can be seen from the figure: with La55Al25Ni5Cu10Co5The regulation and control of the mass ratio and the representation of the saturation magnetization of the composite material prove that the La amorphous alloy is used55Al25Ni5Cu10Co5When the metal binder passes through the binding Fe78Si9B13The magnetic property of the composite material obtained from the amorphous alloy can be regulated and controlled.
Example 3
Mixing amorphous alloy La55Al25Ni5Cu10Co5(denoted by La based MG) was used as a binder to mix with ceramic powder (denoted by Ceramics) to prepare a composite material, comprising the steps of:
step 1: la to be screened by a 80-mesh screen55Al25Ni5Cu10Co5Amorphous powder and purchased ceramic powder (cordierite) in different mass ratios (La)55Al25Ni5Cu10Co5: ceramic powders 8:2, 6:4, 5:5, 4:6, 2:8) and the uniformly mixed powders are stored in a vacuum environment to prevent oxidation.
Step 2: the mixed powder was removed from the vacuum and placed in a mold. When the vacuum degree in the vacuum hot-pressing cavity reaches 3 multiplied by 10-3And Pa, feeding the mold for placing the sample into the cavity. The interior of the chamber was then heated and when the temperature reached 500K, 460MPa was applied to the mold and held for one minute. And after the pressure maintaining is finished, when the temperature in the cavity is reduced to the room temperature, the vacuum environment of the cavity is relieved, and the sample is taken out from the cavity. The powder is hot pressed to form a block in the process.
And (3) performance testing:
the prepared composite material block was subjected to conductivity test, and the results of the test are shown in fig. 4. As can be seen from the figure: with La55Al25Ni5Cu10Co5The regulation and control of the mass ratio and the regular presentation of the conductivity of the composite material prove that the amorphous alloy La is used55Al25Ni5Cu10Co5When the metal adhesive is used for bonding ceramic powder, the conductive performance of the composite material can be regulated and controlled.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. Use of an amorphous alloy as a binder.
2. The use of claim 1, wherein the amorphous alloy comprises amorphous alloy Laa1Alb1Nic1Cud1Coe1Amorphous alloy Zra2Tib2Cuc2Nid2Bee2Amorphous alloy Ma3Cub3Nic3Pd3Amorphous alloy Mga4Cub4REc4At least one of; wherein the content of the first and second substances,
a1+b1+c1+d1+e1＝100；
a2+b2+c2+d2+e2＝100；
a3+ b3+ c3+ d3 is 100, M is Pt or Pd;
a4+ b4+ c4 is 100, and RE is rare earth element.
3. Use according to claim 1, wherein the amorphous alloy Laa1Alb1Nic1Cud1Coe1Comprising La55Al25Ni5Cu10Co5；
Or the amorphous alloy Zra2Tib2Cuc2Nid2Bee2Including Zr41.2Ti13.8Cu12.5Ni10Be22.5Or Zr35Ti30Cu8.25Be26.75；
Or the amorphous alloy Ma3Cub3Nic3Pd3Comprising Pt57.5Cu14.7Ni5.3P22.5；
Or the amorphous alloy Mga4Cub4REc4Comprising Mg65Cu25Y10。
4. A method of making a composite material, comprising: the amorphous alloy is used as a binder and is mixed with a functional material to be subjected to hot pressing treatment.
5. The method according to claim 4, wherein the method comprisesCharacterized in that the amorphous alloy comprises amorphous alloy Laa1Alb1Nic1Cud1Coe1Amorphous alloy Zra2Tib2Cuc2Nid2Bee2Amorphous alloy Ma3Cub3Nic3Pd3Amorphous alloy Mga4Cub4REc4At least one of; wherein the content of the first and second substances,
a1+b1+c1+d1+e1＝100；
a2+b2+c2+d2+e2＝100；
a3+ b3+ c3+ d3 is 100, M is Pt or Pd;
a4+ b4+ c4 is 100, and RE is rare earth element.
6. The method according to claim 5, wherein the amorphous alloy Laa1Alb1Nic1Cud1Coe1Comprising La55Al25Ni5Cu10Co5；
Or the amorphous alloy Zra2Tib2Cuc2Nid2Bee2Including Zr41.2Ti13.8Cu12.5Ni10Be22.5Or Zr35Ti30Cu8.25Be26.75；
Or the amorphous alloy Ma3Cub3Nic3Pd3Comprising Pt57.5Cu14.7Ni5.3P22.5；
Or the amorphous alloy Mga4Cub4REc4Comprising Mg65Cu25Y10。
7. The production method according to claim 4, wherein the mass ratio of the amorphous alloy to the functional material is (8: 2) to (2: 8);
and/or the amorphous alloy is amorphous alloy powder passing through a 80-mesh screen;
and/or the functional material is functional material powder with the particle size of less than 200 mu m;
and/or the functional material comprises high-entropy alloy powder, ceramic powder and Fe78Si9B13At least one of amorphous powders.
8. The production method according to any one of claims 4 to 7, wherein the thermocompression treatment comprises: and pressing the mixed powder obtained after mixing under the condition that the temperature is 450-700K and the pressure is 420-500 MPa.
9. The method according to claim 8, wherein the hot press treatment is carried out under a vacuum degree of 2.5 to 3.5X 10-3Pa in the chamber.
10. A composite material produced by the production method according to any one of claims 4 to 9.
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| CN113502426A (en) * | 2021-06-04 | 2021-10-15 | 华中科技大学 | Multi-grain-size hard alloy and preparation method thereof |
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| CN101195160A (en) * | 2006-12-07 | 2008-06-11 | 比亚迪股份有限公司 | Amorphous powdered alloy and method for producing the same |
| CN104651758A (en) * | 2013-11-20 | 2015-05-27 | 沈阳工业大学 | High-temperature high-strength aluminum-based amorphous composite material and preparation method thereof |
| CN112981278A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院物理研究所 | High-energy-content amorphous alloy material, and preparation method and application thereof |
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