CN108456795B - A kind of foam metal preparation method effectively improving specific surface area - Google Patents
A kind of foam metal preparation method effectively improving specific surface area Download PDFInfo
- Publication number
- CN108456795B CN108456795B CN201810281496.2A CN201810281496A CN108456795B CN 108456795 B CN108456795 B CN 108456795B CN 201810281496 A CN201810281496 A CN 201810281496A CN 108456795 B CN108456795 B CN 108456795B
- Authority
- CN
- China
- Prior art keywords
- foam metal
- surface area
- specific surface
- foam
- deposition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000006260 foam Substances 0.000 title claims abstract description 67
- 239000002184 metal Substances 0.000 title claims abstract description 54
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000009792 diffusion process Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000000151 deposition Methods 0.000 claims abstract description 8
- 230000008021 deposition Effects 0.000 claims abstract description 8
- 238000004070 electrodeposition Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 6
- 239000001257 hydrogen Substances 0.000 claims abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 6
- 239000007769 metal material Substances 0.000 claims abstract description 6
- 239000004814 polyurethane Substances 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims abstract description 6
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 5
- 229910052786 argon Inorganic materials 0.000 claims abstract description 4
- 239000001307 helium Substances 0.000 claims abstract description 4
- 229910052734 helium Inorganic materials 0.000 claims abstract description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000011282 treatment Methods 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000013021 overheating Methods 0.000 claims description 5
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 229910017435 S2 In Inorganic materials 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012876 topography Methods 0.000 description 5
- 229910000640 Fe alloy Inorganic materials 0.000 description 4
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 4
- 229910000792 Monel Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002659 electrodeposit Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/08—Alloys with open or closed pores
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/08—Alloys with open or closed pores
- C22C1/081—Casting porous metals into porous preform skeleton without foaming
- C22C1/082—Casting porous metals into porous preform skeleton without foaming with removal of the preform
Abstract
The invention discloses a kind of foam metal preparation methods for effectively improving specific surface area, conductive processing is carried out first in polyurethane foam, electro-deposition at least one metal, obtain foam metal matrix, then resulting foam metal matrix is subjected to the heat treatment of hydrogen atmosphere to remove polyurethane, deposition and the different metal material of foam metal matrix on foam metal matrix again, obtain foam metal alloy；By foam metal alloy under the protective atmosphere of nitrogen, argon gas or helium, or in vacuum degree less than 1*10‑1It is diffused heat treatment under the vacuum condition of Pa, is quickly cooled down after diffusion heat treatments, finally obtains the foam metal alloy of superhigh specific surface area.The present invention is based on diffusion rate difference of dissimilar metal during high temperature counterdiffusion, when diffusion carries out the most violent, fast cooling stops rapidly by diffusion reaction, to remain because of the defects of vacancy next left by diffusion not exclusively, hole, superhigh specific surface area foam metal is formd.
Description
Technical field
The present invention relates to foam metal preparation technical fields, and in particular to a kind of foam metal for effectively improving specific surface area
Preparation method.
Background technique
Foam metal material is a kind of excellent functionalization environment-friendly materials, it collects the performances such as mechanics, calorifics, electricity, acoustics
In one, irreplaceable critical role is possessed in Material Field.High porosity and high-specific surface area are the structures of foam metal
Feature and key property, and determine foam metal in sound absorption energy-absorbing, the fields such as damping noise-reducing, be electromagnetically shielded, be separated by filtration and have
There is the key performance of obvious application advantage.Currently, three-dimensional netted open cell foam metal preparation mainly uses electro-deposition and gas phase
The method of deposition, prepared foam metal fiber surface are smooth or nearly smooth state, as shown in Figs. 1-2.This causes to steep
The high-specific surface area of foam metal is difficult to further improve, and limits it and widely applies.
Summary of the invention
In view of the deficiencies of the prior art, the present invention is intended to provide a kind of foam metal preparation side for effectively improving specific surface area
Method, the diffusion rate difference based on dissimilar metal during high temperature counterdiffusion are quick when diffusion carries out the most violent
Cooling allows diffusion reaction to stop rapidly, thus by being remained because of the defects of vacancy next left by diffusion not exclusively, hole, shape
At superhigh specific surface area foam metal.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of foam metal preparation method effectively improving specific surface area, includes the following steps:
S1, conductive processing is carried out in polyurethane foam, electro-deposition at least one metal obtains foam metal matrix；
S2, foam metal matrix obtained in step S1 is heat-treated in a hydrogen atmosphere to remove polyurethane, institute
The temperature for stating heat treatment is 400 DEG C -1000 DEG C；
S3, deposition is different with the metal of institute's electro-deposition in step S1 on the foam metal matrix after Overheating Treatment
Another metal material obtains foam metal alloy；
S4, to foam metal alloy obtained in step S3 under the protective atmosphere of nitrogen, argon gas or helium, or in vacuum
Degree is less than 1*10-1Heat treatment is diffused under the vacuum condition of Pa, the temperature of the diffusion heat treatments is 600 DEG C -1000 DEG C；Expand
It is rapidly cooled to room temperature after radiating treatment, cooling rate is greater than 10 DEG C/min, finally obtains the foam of superhigh specific surface area
Metal alloy.
It should be noted that the metal in step S1 is nickel, copper or iron.
It should be noted that the specification of the foam metal matrix is 5PPI-200PPI in step S1.
It should be noted that the time of the heat treatment is 10min-300min in step S2.
It should be noted that the deposition is by the way of electro-deposition or vapor deposition in step S3.
It should be noted that the metal material is nickel, copper or iron in step S3.
It should be noted that the time of the diffusion heat treatments is 1h-20h in step S4.
The beneficial effects of the present invention are:
The present invention is based on diffusion rate difference of dissimilar metal during high temperature counterdiffusion, carry out in diffusion the most violent
When fast cooling stop rapidly by diffusion reaction, thus by because spread not exclusively left by come vacancy, hole the defects of retain
Get off, forms superhigh specific surface area foam metal.
Detailed description of the invention
Fig. 1 is the foam metal surface topography schematic diagram that prior art preparation obtains；
Fig. 2 is the enlarged diagram of Fig. 1；
Fig. 3 is the foam metal surface topography schematic diagram that the method for the present invention is prepared；
Fig. 4 is the enlarged diagram of Fig. 3.
Specific embodiment
Below with reference to attached drawing, the invention will be further described, it should be noted that following embodiment is with this technology
Premised on scheme, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to this
Embodiment.
Embodiment 1
Conductive processing is carried out in the polyurethane foam of 45PPI, realizes electric deposition nickel metal simple-substance, it is close to obtain 45PPI body
Degree is 0.3g/cm3Nickel foam, specific surface area 2000cm2/cm3.It is small that nickel foam is carried out to 1 at 900 DEG C, in hydrogen atmosphere
When heat treatment to remove polyurethane.Then the electrodeposit metals copper in the nickel foam through Overheating Treatment obtains 45PPI volume density
For 0.6g/cm3Foam monel, carried out 8 hours under conditions of under the protective atmosphere of nitrogen, argon gas or helium, 800 DEG C
Diffusion heat treatments, be then rapidly cooled to room temperature with the cooling rate of 10 DEG C/min, obtaining 45PPI specific surface area is
6800cm2/cm3Superhigh specific surface area foam monel, improved than specific surface area more than three with original foam metal phase
Times.
The surface topography schematic diagram that foam monel is obtained in the present embodiment is as shown in Figure 3-4, from Fig. 3-4 it is visible its
Surface has microcellular structure.
Embodiment 2
Conductive processing is carried out in the polyurethane foam of 100PPI, electric deposition nickel metal simple-substance obtains 100PPI volume density
For 0.15g/cm3Nickel foam, specific surface area 6500cm2/cm3.By nickel foam at 800 DEG C, 1.5 are carried out in hydrogen atmosphere
The heat treatment of hour is to remove polyurethane.Then the vapor deposited metal iron in the nickel foam through Overheating Treatment, obtains 100PPI
Volume density is 0.22g/cm3Foam dilval.By foam dilval 950 DEG C temperature, vacuum degree be less than 1*10-2Pa
High vacuum condition under carry out 10 hours diffusion heat treatments, be then rapidly cooled to room temperature with the cooling rate of 10 DEG C/min,
Obtaining specific surface area is 15000cm2/cm3Superhigh specific surface area foam dilval, compare table with original foam metal phase
Area raising has been more than twice.The surface topography of foam dilval obtained is similar to Example 1 in the present embodiment.
Embodiment 3
Conductive processing is carried out in the polyurethane foam of 120PPI, acid copper metal simple-substance obtains 120PPI volume density
For 0.18g/cm3Foam copper, specific surface area 6000cm2/cm3.700 DEG C at a temperature of, carry out 3 hours in hydrogen atmosphere
Heat treatment to remove polyurethane.Then the electrodeposit metals iron on the foam copper through Overheating Treatment obtains 120PPI volume density
For 0.24g/cm3Foam copper-iron alloy.By foam copper-iron alloy temperature be 980 DEG C, vacuum degree be less than 1*10-1The Gao Zhen of Pa
The diffusion heat treatments that 14 hours are carried out under empty condition, are then rapidly cooled to room temperature with the cooling rate of 10 DEG C/min, are compared
Surface area is 18500cm2/cm3Superhigh specific surface area foam copper-iron alloy, mentioned with original foam metal phase than specific surface area
It is high more than three times.The surface topography of foam copper-iron alloy obtained is similar to Example 1 in the present embodiment.
For those skilled in the art, it can be provided various corresponding according to above technical solution and design
Change and modification, and all these change and modification, should be construed as being included within the scope of protection of the claims of the present invention.
Claims (6)
1. a kind of foam metal preparation method for effectively improving specific surface area, which comprises the steps of:
S1, conductive processing is carried out in polyurethane foam, electro-deposition at least one metal obtains foam metal matrix；
S2, foam metal matrix obtained in step S1 is heat-treated in a hydrogen atmosphere to remove polyurethane, the heat
The temperature of processing is 400 DEG C -1000 DEG C；
S3, deposition is different another with the metal of institute's electro-deposition in step S1 on the foam metal matrix after Overheating Treatment
Kind metal material, obtains foam metal alloy；
It is S4, small under the protective atmosphere of nitrogen, argon gas or helium, or in vacuum degree to foam metal alloy obtained in step S3
In 1*10-1Heat treatment is diffused under the vacuum condition of Pa, the temperature of the diffusion heat treatments is 600 DEG C -1000 DEG C, the expansion
The time of radiating treatment is 1h-20h；It is rapidly cooled to room temperature after diffusion heat treatments, cooling rate is greater than 10 DEG C/min；Most
The foam metal alloy of superhigh specific surface area is obtained eventually.
2. the foam metal preparation method according to claim 1 for effectively improving specific surface area, which is characterized in that step S1
In metal be nickel, copper or iron.
3. the foam metal preparation method according to claim 1 for effectively improving specific surface area, which is characterized in that step S1
In, the specification of the foam metal matrix is 5PPI-200PPI.
4. the foam metal preparation method according to claim 1 for effectively improving specific surface area, which is characterized in that step S2
In, the time of the heat treatment is 10min-300min.
5. the foam metal preparation method according to claim 1 for effectively improving specific surface area, which is characterized in that step S3
In, the deposition is by the way of electro-deposition or vapor deposition.
6. the foam metal preparation method according to claim 1 for effectively improving specific surface area, which is characterized in that step S3
In, the metal material is nickel, copper or iron.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281496.2A CN108456795B (en) | 2018-04-02 | 2018-04-02 | A kind of foam metal preparation method effectively improving specific surface area |
| PCT/CN2018/089575 WO2019192070A1 (en) | 2018-04-02 | 2018-06-01 | Foam metal preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810281496.2A CN108456795B (en) | 2018-04-02 | 2018-04-02 | A kind of foam metal preparation method effectively improving specific surface area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108456795A CN108456795A (en) | 2018-08-28 |
| CN108456795B true CN108456795B (en) | 2019-07-05 |
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| CN201810281496.2A Expired - Fee Related CN108456795B (en) | 2018-04-02 | 2018-04-02 | A kind of foam metal preparation method effectively improving specific surface area |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7177827B2 (en) * | 2017-05-11 | 2022-11-24 | イーアールジー エアロスペース コーポレイション | Optimization of system using compressed reticulated foam structure |
| CN110512246B (en) * | 2019-09-29 | 2020-11-03 | 太仓陶氏电气有限公司 | Preparation process of foam metal for electronic component heat dissipation system |
| CN111575755A (en) * | 2020-04-18 | 2020-08-25 | 无锡荣峻环保科技有限公司 | Preparation method of foam copper alloy with strong antibacterial effect |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1314533C (en) * | 2000-11-30 | 2007-05-09 | 北京有色金属研究总院 | Composite foam metal and its preparing process |
| EP1724863A1 (en) * | 2005-05-17 | 2006-11-22 | Nicholas M. Abson | Metal foam materials in alkaline fuel cells and alkaline electrolysers |
| KR101212786B1 (en) * | 2010-08-10 | 2012-12-14 | 프라운호퍼-게젤샤프트 츄어 푀르더룽 데어 안게반텐 포르슝에.파우. | Open-porous metal foam body and a method of fabricating the same |
| CN106756186A (en) * | 2015-11-25 | 2017-05-31 | 常德力元新材料有限责任公司 | The preparation method of porous foam nickel-iron-chromium alloy material |
| CN107190249B (en) * | 2017-06-13 | 2019-08-06 | 沈阳建筑大学 | A kind of preparation method of porous metal foam copper |
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| CN108456795A (en) | 2018-08-28 |
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Granted publication date: 20190705 |