CN105018772A - Method for preparing porous copper or porous copper alloy - Google Patents
Method for preparing porous copper or porous copper alloy Download PDFInfo
- Publication number
- CN105018772A CN105018772A CN201410182936.0A CN201410182936A CN105018772A CN 105018772 A CN105018772 A CN 105018772A CN 201410182936 A CN201410182936 A CN 201410182936A CN 105018772 A CN105018772 A CN 105018772A
- Authority
- CN
- China
- Prior art keywords
- alloy
- porous
- copper
- volatile
- copper alloy
- 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.)
- Pending
Links
Abstract
The invention aims to provide a method for preparing porous pure copper or a copper alloy with a three-dimensional through hole structure. The method is characterized in that in the vacuum environment, volatile alloy elements in the copper alloy are volatized gradually, and finally the porous copper or the porous copper alloy is formed. The raw material copper alloy contains at least one volatile alloy element, and it is required that the steam pressure of the volatile alloy elements is higher than that of base body elements in the copper alloy and the volatile alloy elements can form a uniform alloy or solid solution together with the base body alloy elements. The method is simple and suitable for large-scale production, the porosity of the obtained product can be adjusted, and the porous copper or the porous copper alloy can be widely applied to the fields of battery current collectors, separation, filtration, catalysis, noise reduction, vibration absorption, shielding and heat exchange and the like.
Description
Technical field
The invention belongs to metal material field, the preparation method of a kind of novel porous copper or Porous Cu alloy is provided especially.
Background technology
The features such as the low density that porous material has, specific area, lower thermal conductivity, high specific strength, good energy-absorbing make it be used widely in separation, sensor, catalysis, vibration reduction and cushioning, heat insulation, noise elimination, filtration etc., are with a wide range of applications at numerous areas such as Aeronautics and Astronautics, chemical industry, building materials, metallurgy, nuclear power, petrochemical industry, machinery, medicine and environmental protection.
Start to prepare porous metal material with powder metallurgy process from the early in the twentieth century mankind, the manufacture history of porous metal has last 100 years, its traditional preparation method constantly develops, new processing method constantly occurs, mainly contains: powder sintering type, fiber sintering type, compound, appositional pattern, corrosion type etc.Template is a kind of important method of the poromerics that development in recent years is got up, utilize colloid crystal as template, be filled in the hole of mould material by needing the raw material making porous material, again by certain physics or chemical process removing mould material, thus obtain the reverse replica of mould material, i.e. porous material.The selection of template is the most important step of this method, decides the Structure and Properties of porous material.But the equal relative complex of the technique of template or powder sintering.
De-alloyage is also a kind of method preparing nano-porous materials, utilize the chemical activity difference in alloy between different element, optionally remove comparatively active one or more components by chemistry or electrochemical method, remaining ingredient is by the porous metal material of the three-dimensional co-continuous of the spontaneous formation of the mode such as atomic diffusion, gathering.At present by selective corrosion, oneself is through having prepared nanoporous platinum, nano porous palladium, nanoporous titanium and nano porous copper etc.But this method belongs to dealloying corrosion, be all generally carry out on metallic substance top layer for the preparation of porous metal material, be difficult to prepare massive material.
Summary of the invention
The object of the present invention is to provide have the porous fine copper of three-dimensional through hole structure or the preparation technology of copper alloy a kind of preparation.
The present invention specifically provides the preparation method of a kind of Porous Cu or Porous Cu alloy, it is characterized in that: in vacuum environment, and volatile alloying element in copper alloy is volatilized gradually, final formation Porous Cu or Porous Cu alloy.Wherein have a kind of volatile alloy element in starting material copper alloy at least, require that the vapour pressure of volatile alloy element is higher than the vapour pressure of matrix element in copper alloy, and uniform alloy or sosoloid can be formed with matrix elements.
Ultimate principle of the present invention utilizes volatile alloy element in copper alloy in the relatively high vapour pressure (at least at the same temperature high three orders of magnitude) of specific temperature range, volatilize gradually in vacuum environment (vacuum tightness suggestion controls at below 10Pa), final formation porous fine copper or copper alloy.According to above principle, described volatile alloy element is the element that zinc, cadmium, bismuth, selenium, magnesium, strontium, antimony etc. have higher vapor pressure.In copper alloy, the content of Volatile Elements needs to control between atomic percent 20%-80%, to form different porositys simultaneously.
The preparation method of Porous Cu of the present invention or Porous Cu alloy, it is characterized in that: the copper alloy that can use commercially available copper alloy or adopt melting or powder metallurgy process to prepare, copper alloy surface polishing descaling, according to the fusing point of different Cu alloy, high vacuum is continued at lower than alloy melting point temperature, the alloying element such as zinc, cadmium wherein with higher vapor pressure is deviate from, obtains three-dimensional porous fine copper or copper alloy.Wherein copper alloy is preferably copper zinc alloy or with the addition of the brass alloys of other strengthening element, most preferably is the brass that Zn content is 35-70%; Treatment temp is preferably 450 DEG C-700 DEG C, and continuous vacuum degree is less than 10Pa, and the treatment time increases along with sample size and increases.
The copper alloy powder that treatment process of the present invention also can be adopted granularity to be greater than more than 10 microns is prepared into Porous Cu powdered alloy or spheroid.
The Porous Cu adopting the method for the invention to prepare or Porous Cu alloy, it is characterized in that: the pore size distribution of described Porous Cu or Porous Cu alloy is 0.1-100 micron, can be applied to the fields such as battery current collector, separation, filtration, catalysis, noise reduction, shock-absorbing, shielding, heat exchange.
The invention has the advantages that:
(1), vacuum heat treatment process is ripe, can carry out large-scale production, not only can prepare blocks of large, and the ultra-thin porous Copper Foil of suitable preparation and porous copper powder or copper ball especially.
(2), adopt the three-dimensional porous fine copper prepared of present invention process or copper alloy to have through-hole structure, its porosity is adjustable according to alloy ratio.
(3), the Porous Cu alloy prepared of the present invention, the fields such as battery current collector, separation, filtration, catalysis, noise reduction, shock-absorbing, shielding, heat exchange can be applied to.
Accompanying drawing explanation
The three-dimensional porous copper alloy picture that Fig. 1 embodiment 4 obtains.
Embodiment
Following examples will be further described the present invention, but not thereby limiting the invention.
If no special instructions, in the present embodiment, all percentage ratio all represents atomic percent.
Embodiment 1
Adopt commercially available 62 brass, be prepared into 20 × 20 × 1mm small pieces, be suspended in laboratory room small-sized vacuum heat treatment furnace, continue high vacuum 3 hours 600 DEG C of insulations, continue high vacuum, within vacuum tightness remains on 10Pa, obtain three-dimensional porous fine copper, aperture is 2-10 micron, and porosity is about 30%.
Embodiment 2
Adopt self-control 50% cadmium copper alloy, preparation 10 × 10 × 0.5mm small pieces, be suspended in laboratory room small-sized vacuum heat treatment furnace, high vacuum 2 hours are continued 400 DEG C of insulations, continue high vacuum, within vacuum tightness remains on 10Pa, obtain three-dimensional porous fine copper, aperture is 2-5 micron, and porosity is about 40%.
Embodiment 3
Adopt homemade 50 brass adding 3% element silicon, Linear cut becomes 20 × 20 × 0.5mm thickness sheet, coated abrasive working is thick to 0.3mm, be suspended in laboratory room small-sized vacuum heat treatment furnace, 600 DEG C of insulations 1 hour, continue high vacuum, within vacuum tightness remains on 10Pa, obtain three-dimensional porous copper-silicon alloy, aperture is 2-10 micron, and porosity is about 40%.
Embodiment 4
Adopt homemade 40 brass (containing zinc 60%), Linear cut becomes 10 × 15 × 1mm thickness sheet, coated abrasive working is thick to 0.8mm, be suspended in laboratory room small-sized vacuum heat treatment furnace, 500 DEG C of insulations 1 hour, continue high vacuum, within vacuum tightness remains on 6Pa, obtain three-dimensional porous copper alloy (Fig. 1).
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. the preparation method of a Porous Cu or Porous Cu alloy, it is characterized in that: in vacuum environment, volatile alloying element in copper alloy is volatilized gradually, final formation Porous Cu or Porous Cu alloy, wherein has a kind of volatile alloy element in starting material copper alloy at least, require that the vapour pressure of volatile alloy element is higher than the vapour pressure of matrix element in copper alloy, and uniform alloy or sosoloid can be formed with matrix elements.
2., according to the preparation method of Porous Cu described in claim 1 or Porous Cu alloy, it is characterized in that: described copper alloy is copper zinc alloy or the brass alloys that with the addition of other strengthening element.
3. according to the preparation method of Porous Cu described in claim 2 or Porous Cu alloy, it is characterized in that: the brass of described copper alloy to be zinc content be 35-70%.
4., according to the preparation method of Porous Cu described in claim 1 or Porous Cu alloy, it is characterized in that: described volatile alloy element be zinc, cadmium, bismuth, selenium, magnesium, strontium, antimony one or more.
5., according to the preparation method of Porous Cu described in claim 1 or Porous Cu alloy, it is characterized in that: in starting material copper alloy, the atomic percent of volatile alloy element controls between 20%-80%.
6., according to the preparation method of the arbitrary described Porous Cu of Claims 1 to 5 or Porous Cu alloy, it is characterized in that: in copper alloy, volatile alloy element volatilizees under 450 DEG C of-700 DEG C of vacuum conditions.
7. the Porous Cu prepared according to method described in claim 1 or a Porous Cu alloy, is characterized in that: the pore size distribution of described Porous Cu or Porous Cu alloy is 0.1-100 micron.
8. the Porous Cu prepared according to method described in claim 1 or Porous Cu alloy are in the application of battery current collector, separation, filtration, catalysis, noise reduction, shock-absorbing, shielding, field of heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182936.0A CN105018772A (en) | 2014-04-30 | 2014-04-30 | Method for preparing porous copper or porous copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182936.0A CN105018772A (en) | 2014-04-30 | 2014-04-30 | Method for preparing porous copper or porous copper alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105018772A true CN105018772A (en) | 2015-11-04 |
Family
ID=54409069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410182936.0A Pending CN105018772A (en) | 2014-04-30 | 2014-04-30 | Method for preparing porous copper or porous copper alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105018772A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648260A (en) * | 2016-01-04 | 2016-06-08 | 武汉理工大学 | Method for preparing micrometer porous metal copper blocks by dealloying of copper-ferrum alloy |
| CN105713829A (en) * | 2016-03-18 | 2016-06-29 | 中国科学院长春应用化学研究所 | Unicellular sampling device and method based on porous metal enrichment probe |
| CN108465815A (en) * | 2018-02-13 | 2018-08-31 | 东莞市联洲知识产权运营管理有限公司 | A kind of porous carbon-based transition metal porous material and preparation method thereof of three-dimensional co-continuous |
| CN108866371A (en) * | 2018-07-25 | 2018-11-23 | 山东大学 | A kind of preparation method of porous aluminum |
| CN109338150A (en) * | 2018-11-08 | 2019-02-15 | 沈阳理工大学 | A kind of porous copper alloy and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5567336A (en) * | 1978-11-16 | 1980-05-21 | Mitsubishi Heavy Ind Ltd | Preparation of catalyst |
| CN103627920A (en) * | 2013-11-11 | 2014-03-12 | 江苏大学 | Preparation method of porous nickel |
| CN103627919A (en) * | 2013-05-30 | 2014-03-12 | 中国科学院电子学研究所 | Method for removing copper from tungsten sponge matrix |
-
2014
- 2014-04-30 CN CN201410182936.0A patent/CN105018772A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5567336A (en) * | 1978-11-16 | 1980-05-21 | Mitsubishi Heavy Ind Ltd | Preparation of catalyst |
| CN103627919A (en) * | 2013-05-30 | 2014-03-12 | 中国科学院电子学研究所 | Method for removing copper from tungsten sponge matrix |
| CN103627920A (en) * | 2013-11-11 | 2014-03-12 | 江苏大学 | Preparation method of porous nickel |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648260A (en) * | 2016-01-04 | 2016-06-08 | 武汉理工大学 | Method for preparing micrometer porous metal copper blocks by dealloying of copper-ferrum alloy |
| CN105648260B (en) * | 2016-01-04 | 2017-11-17 | 武汉理工大学 | A kind of method that copper-iron alloy removal alloying prepares micron porous metal copper billet body |
| CN105713829A (en) * | 2016-03-18 | 2016-06-29 | 中国科学院长春应用化学研究所 | Unicellular sampling device and method based on porous metal enrichment probe |
| CN108465815A (en) * | 2018-02-13 | 2018-08-31 | 东莞市联洲知识产权运营管理有限公司 | A kind of porous carbon-based transition metal porous material and preparation method thereof of three-dimensional co-continuous |
| CN108866371A (en) * | 2018-07-25 | 2018-11-23 | 山东大学 | A kind of preparation method of porous aluminum |
| CN108866371B (en) * | 2018-07-25 | 2019-12-03 | 山东大学 | A kind of preparation method of porous aluminum |
| CN109338150A (en) * | 2018-11-08 | 2019-02-15 | 沈阳理工大学 | A kind of porous copper alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105018770A (en) | Method for preparing porous metal material and application thereof | |
| CN105018772A (en) | Method for preparing porous copper or porous copper alloy | |
| Richman et al. | Ordered mesoporous silicon through magnesium reduction of polymer templated silica thin films | |
| CN106801159A (en) | A kind of preparation method of nickel foam or foam nickel-base alloy | |
| CN105648260B (en) | A kind of method that copper-iron alloy removal alloying prepares micron porous metal copper billet body | |
| CN103774149B (en) | A kind of preparation method of high-strength nanoporous nickel film | |
| CN105018776A (en) | Preparation technology and application of novel porous brass foil | |
| CN103563028B (en) | Electrode material and its manufacture method for aluminium electrolutic capacitor | |
| CN108188400A (en) | A kind of micro-nano twin-stage Porous Cu and preparation method thereof | |
| CN101768706A (en) | Preparation method of diamond particle reinforced copper-based composite material parts with high volume fraction | |
| CN103215470A (en) | Preparation method of open-pore copper foam with controllable pore structure parameter | |
| CN105018771A (en) | Preparation method of nickel foam or nickel foam substrate alloy | |
| CN105200528A (en) | Method for corrosively preparing silicon-base super-hydrophobic surface by utilizing pine structural porous silver as catalyst | |
| Liu et al. | Preparations and properties of porous copper materials for lithium-ion battery applications | |
| CN103103571A (en) | Gold-silver alloy nano porous metal material and preparation technology thereof | |
| CN105798319B (en) | Preparation method of silver-tungsten electrical contact material, electrical contact material and electrical contact | |
| Li et al. | Research on electrochemical oxidation of formaldehyde on the nanoporous silver electrode in alkaline solution | |
| CN105018697A (en) | Preparation method for novel porous iron-base alloy | |
| CN105642884A (en) | Preparation method for Bi-Te-based thermoelectric material with core-shell structure | |
| CN109338150B (en) | Porous copper alloy and preparation method thereof | |
| CN103880004B (en) | High Temperature High Pressure prepares the method for grapheme material | |
| JP2011117066A (en) | Porous metal and method for producing the same | |
| CN104476653A (en) | Three-dimensional (3D) printing and manufacturing method of porous niobium parts | |
| CN105689733B (en) | A kind of classifying porous silver and preparation method thereof | |
| TW592850B (en) | Niobium alloy powder, anode for solid electrolytic capacitors made therefrom and solid electrolytic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151104 |