CN106141438A - A kind of method utilizing laser plasma filament to prepare metal multifunction surface - Google Patents
A kind of method utilizing laser plasma filament to prepare metal multifunction surface Download PDFInfo
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- CN106141438A CN106141438A CN201510157440.2A CN201510157440A CN106141438A CN 106141438 A CN106141438 A CN 106141438A CN 201510157440 A CN201510157440 A CN 201510157440A CN 106141438 A CN106141438 A CN 106141438A
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Abstract
The present invention proposes a kind of method utilizing laser plasma filament to prepare metal multifunction surface, by the radiation treatment to metal surface for the femtosecond laser plasma filament, one step realizes the multifunctional unit of wide spectrum height light Optical Absorption Characteristics and super-hydrophobic automatic cleaning wetting characteristics, it is not necessary to any later stage process such as plated film (hydrophobic film).This method, compared with conventional method, has function of surface characteristic durable, and Making programme is simple, production efficiency advantages of higher.This multifunction surface can apply to the fields such as outdoor solar energy, bioprobe, chip lab.
Description
Technical field
The present invention relates to metal surface modification field, process the method for metal surface modification particularly to ultrashort pulse plasma filament.
Background technology
Metal material is used for Industry and Construction, as development and the theory thereof of micro-processing technology are gradually ripe, increasing scientific worker turns one's attention to the research of metal surface modification, through the micro nano structure that means of different can be prepared in metal surface with method, and then changing original metal surface character, strange characteristic makes it suffer from the using value of reality in different field (such as solar absorption, High Efficiency Thermal radiation source, heat radiation conversion and bioprobe etc.).
Published at present have with regard to the patent document utilizing laser to prepare material surface super-hydrophobic automatic cleaning surface: CN101844272A utilizes laser interference photolithography technology to make self-cleaning surface structure, multiple coherent laser beams are combined, carry out strong and weak modulation to the light distribution in interference field, laser energy ablation device surface with redistribution after modulation, it is achieved the preparation of self-cleaning surface structure.CN 103204457A provides a kind of laser and mixes the method producing micro-nano structure with chemical method, it is achieved that the superhydrophobic characteristic of metal surface.Realize that the document of metal surface optical characteristics modification has: CNIO1380693A provides a kind of in air ambient, using 10X microcobjective that in metal material surface induction, incident femto-second laser pulse vertical focusing is produced micro-nano structure, these micro nano structures can improve absorptivity and reinforcing material radiation efficiency at wide spectral range.Although the method that metal surface optical modifier (increasing strong light absorption) and wetting modified (realizing super-hydrophobic, automatically cleaning characteristic) are manufactured separately is more, but the method making its function integrated is more complicated, for example, need first to prepare coarse or that there is surface micro-structure surface, carry out lower-energy material coating film treatment in roughened metal surface afterwards, so could realize superhydrophobic characteristic [JOURNAL OF COLLOID AND
INTERFACE SCIENCE 208,287 294 (1998)], and this surface easy damaged, life-span are short.Simply, the technology of preparing on the lasting multifunctional unit surface (spectral absorption characteristics high, wide and combination super-hydrophobic, automatically cleaning characteristic) of effect is at present by active demand.
Content of the invention
The present invention is directed in the past in the deficiency of metal surface multifunctional unit method, propose a kind of method utilizing laser plasma filament to prepare metal multifunction surface, by the radiation treatment to metal surface for the femtosecond laser plasma filament, one step realizes the multifunctional unit of wide spectral light absorption characteristic and super-hydrophobic automatic cleaning characteristic, it is not necessary to any later stage process such as plated film (hydrophobic film).This multifunction surface physical characteristic derives from surface and forms micro-nano structure, and therefore stable in properties function keeps permanent, and this multifunctional metallic face may be directly applied to the outdoor field such as solar energy, detector.
The technical scheme that the present invention takes:
A kind of method utilizing laser plasma filament to prepare metal multifunction surface, the method comprises the steps of:
(1) first ultra-short pulse laser through lens focus or freely transmits formation plasma filament
(2) plasma filament acts on (irradiation) target material surface；
(3) control plasma filament and raster scanning process is carried out to metal surface so that it is surface forms column type micron and nanometer composite structure；
(4) by control laser and sweep parameter, realize the double optimization of optics and wetting characteristics simultaneously, purpose only by femtosecond laser plasma filament Treatment of Metal Surface realize high light absorb, super-hydrophobic, automatically cleaning multifunction surface once integrated.
Described laser parameter refers to the laser of induced plasma filament, and design parameter includes: laser energy, laser pulse width, laser repetition rate and laser spot size.
Described raster scanning refers to the relative motion mode between silk and target, both can be realized by control laser galvanometer system control plasma filament motion, it is also possible to realized by control target example platform motion.
Described sweep parameter refers to sweep span and sweep speed, 20 μm of-1mm of sweep span scope, the 200 μm/s-10cm/s of velocity interval of plasma filament and sample relative motion.
Described metal material can be gold, silver, iron, molybdenum, aluminium, nickel, titanium, magnesium, stainless steel and their alloy material or the composite material being mainly composed of previous materials, and metal material thickness can be 110 μm of-0.3m.
Femtosecond laser plasma filament can carry out micro-nano structure at any curved surface to be prepared, such as: hemispherical, positive tetrahedron, tread body, even random surface etc..
It is an advantage of the current invention that:
(1) metal surface is processed by the plasma filament that the present invention utilizes induced by ultrashort pulse laser to produce, realization simultaneously processes surface and has high light Optical Absorption Characteristics and super-hydrophobic automatic cleaning wetting characteristics, it without subsequent treatment process, is greatly improved material property, expanded its application；
(2) multifunction surface prepared by the present invention is that one is mainly formed by surface micro-nano structure and shows physical phenomenon, almost can apply on various metal materials, (carry out silanization or fluothane process on extinction surface compared with conventional conventional method, obtain surface super hydrophobic thin film), function of surface is more longlasting durable, and Making programme is simpler, improves production efficiency, and reduces cost；
(3) present invention uses ultrashort pulse plasma filament, therefore can process non-flat surface, has more practical application (common laser realizes that Machining of Curved Surface needs by complicated control device systems such as 5 dimension platforms) relative to common laser method.
Brief description
Fig. 1 ultra-short pulse laser becomes silk to change the method schematic diagram of metal surface optical characteristics, in figure: the 1st, ultra-short pulse laser system, 2nd, dimmer, 3rd, spatial light intensity reshaper, 4th, light polarization adjuster, 5th, optical focusing system (lens focus or galvanometer focus on field lens), the 6th, translation stage, the 7th, metal sample.
The aluminium surface topography map that Fig. 2 was processed through plasma filament.
Aluminium surface enlargement ratio shape appearance figure after plasma filament process for the Fig. 3.
The primary aluminum moistened surface situation that Fig. 4 was processed without plasma filament.
The super-hydrophobic behavior on aluminium surface after plasma filament process for the Fig. 5.
Aluminium surface optical albedo measurement curve before and after the process of Fig. 6 plasma filament.
The nickel surface shape appearance figure that Fig. 7 was processed through plasma filament.
Nickel surface enlargement ratio shape appearance figure after plasma filament process for the Fig. 8.
The former nickel surface Wet Out that Fig. 9 was processed without plasma filament.
The super-hydrophobic behavior of nickel surface after plasma filament process for the Figure 10.
Nickel surface optical reflectivity experiment curv before and after the process of Figure 11 plasma filament.
Detailed description of the invention
The present invention will be further described below:
The metal material selected should first pass through cleaning mode and obtain clean surface, can take the reagent wiping such as ethanol or acetone surface respectively.As shown in Figure 1, sample 7 after cleaning is placed on translation stage 6, the pulse laser that ultrashort pulse laser 1 sends produces plasma filament after sequentially passing through dimmer the 2nd, spatial light intensity reshaper the 3rd, light polarization adjuster the 4th, optical focusing system 5 in atmosphere, and silk acts directly on sample 7.Wherein dimmer can be combined by neutral filter or half-wave plate and Glan prism and constitute；Polarization adjuster can be made up of half-wave plate or quarter wave plate；Optical focusing system can be made up of with field lens focusing lens focus or galvanometer.
Embodiment
1
Metal sample in the present embodiment is metallic aluminium, aluminium sample is placed under the filament that femtosecond pulse is induced, the femtosecond pulse centre wavelength selected in this example is 800nm, repetition rate 1kHz, pulse width is 50fs, horizontal linear polarization, single pulse energy is that the femtosecond laser of 3.5mJ forms, by the condenser lens that focal length is 1m, the plasma filament that length is about 11 centimetres.Sample is fixed on D translation platform, translation stage fixed-direction is perpendicular to plasma filament, make the plasma filament can vertically irradiation and metal sample surface, sample Working position is 95cm away from condenser lens distance, by moving three dimension translation stage, by sweep speed 5mm/s, changing sweep span is 0.04mm, being prepared for the micron and nanometer composite structure surface that cylindricality is typical structure, as Figure 2-3, Fig. 3 is the partial enlargement image of Fig. 2 to surface topography.Through contact angle measurement measurement, super-hydrophobic automatic cleaning test result is as illustrated in figures 4-5, the surface (contact angle is 155.7 °) being processed by plasma filament hydrophobicity compared with original surface before (contact angle is 90.8 °) has increased significantly (improve 71%), roll angle measurement result is 10.3 °, shows have good self-cleaning function.Wide spectrum high-selenium corn optical function characterizes as shown in Figure 6, has very strong sunken light ability in the spectral region of 200-2500nm.
Embodiment
2
In the present embodiment, the sample of application is metallic nickel, laser parameter with to become silk parameter identical with example 1, translation stage sweep speed 5mm/s, sweep span 0.04mm.Obtain the multifunction surface that there is cylindricality for typical case's micro-nano compound structure, surface topography micrograph such as Fig. 7-8, Fig. 8 is Fig. 7 enlarged drawing picture, (original surface contact angle is 89.7 ° to shown super-hydrophobic test result as shown in figs. 9-10, surface contact angle after process is 161.3 °, and roll angle is 14.5 °).Wide spectrum high-selenium corn function characterizes as shown in figure 11.
Claims (7)
1. one kind utilizes the method that laser plasma filament prepares metal multifunction surface, it is characterised in that the method is made up of following characteristics and step:
(1) ultra-short pulse laser through lens focus or acts on target material surface after freely transmitting formation plasma filament；
(2) metal surface after filament is processed forms nearly column type micron and nanometer composite structure；
(3) by control laser and sweep parameter, realize the double optimization of optics and wetting characteristics simultaneously, i.e. one step femtosecond laser plasma filament prepares multifunction surface, it is achieved the multifunctional unit of the functions such as the absorption of high light, super-hydrophobic, automatically cleaning, it is not necessary to other aid in treatment means.
2. a kind of method utilizing laser plasma filament to prepare metal multifunction surface according to claim 1, it is characterized in that described laser parameter refers to the laser parameter of induced plasma filament, design parameter includes: laser energy, laser pulse width, laser repetition rate and laser spot size etc..
3. a kind of method utilizing laser plasma filament to prepare metal multifunction surface according to claim 1, it is characterised in that described ultrashort pulse refers to laser pulse width, and its scope is at 5fs-100ps.
4. a kind of method utilizing laser plasma filament to prepare metal multifunction surface according to claim 1, it is characterized in that described sweep parameter refers to, the sweep speed of plasma filament and sample relative motion and silk scan every time between sweep span, 200 μm/s-10cm/s of velocity interval, 20 μm of-1mm of spacing range.
5. a kind of method utilizing laser plasma filament to prepare metal multifunction surface according to claim 1, it is characterised in that metal material is gold, silver, iron, molybdenum, aluminium, nickel, titanium, magnesium, stainless steel and their alloy material or the composite material being mainly composed of previous materials.
6. a kind of method utilizing laser plasma filament to prepare metal multifunction surface according to claim 1, it is characterized in that femtosecond laser plasma silk can carry out micro-nano structure at any curved surface and prepare, such as: hemispherical, positive tetrahedron, tread body, even random surface etc..
7. a kind of method utilizing laser plasma filament to prepare metal multifunction surface according to claim 6, it is characterised in that metal material thickness is 100 μm of-0.5m.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252967A (en) * | 2017-07-26 | 2017-10-17 | 大连理工大学 | The method that ultra-short pulse laser surface texture is modified manufacture high-absorbility ferrous metal |
| CN107598360A (en) * | 2017-09-13 | 2018-01-19 | 中国工程物理研究院激光聚变研究中心 | The method that mild steel multifunction surface is prepared using femtosecond laser |
| CN107999976A (en) * | 2017-12-28 | 2018-05-08 | 上海市激光技术研究所 | One kind has wearability and hydrophobic metal surface micro-structure preparation method |
| CN109483058A (en) * | 2018-12-10 | 2019-03-19 | 吉林大学 | A method of rapid large-area remotely prepares super-hydrophobic antireflex structure on irregular metal curved surface |
| CN112276386A (en) * | 2020-10-29 | 2021-01-29 | 广东省科学院中乌焊接研究所 | Pre-welding pretreatment method and welding method for high-reflectivity metal material |
| CN113102883A (en) * | 2021-03-26 | 2021-07-13 | 西安交通大学 | Antibacterial material and preparation method thereof |
| CN114769623A (en) * | 2022-06-20 | 2022-07-22 | 吉林大学 | Preparation method for manufacturing NiTi alloy super-hydrophilic surface by additive manufacturing |
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| CN101219506A (en) * | 2008-01-07 | 2008-07-16 | 江苏大学 | Laser production method for metal base ultra-hydrophobicity micro-structure surface |
| CN101531335A (en) * | 2009-04-08 | 2009-09-16 | 西安交通大学 | Method for preparing metal surface superhydrophobic microstructure by femto-second laser |
| CN101844272A (en) * | 2010-01-27 | 2010-09-29 | 长春理工大学 | Method and system for manufacturing self-cleaning surface structure by adopting laser interference photolithography technology |
| CN102167280A (en) * | 2011-01-13 | 2011-08-31 | 西北工业大学 | Super-hydrophobic silicon micron-nano composite structure and preparation method thereof |
| CN103433618A (en) * | 2013-07-25 | 2013-12-11 | 长春理工大学 | Method for controlling size and distribution of metal surface micro-nanostructure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101219506A (en) * | 2008-01-07 | 2008-07-16 | 江苏大学 | Laser production method for metal base ultra-hydrophobicity micro-structure surface |
| CN101531335A (en) * | 2009-04-08 | 2009-09-16 | 西安交通大学 | Method for preparing metal surface superhydrophobic microstructure by femto-second laser |
| CN101844272A (en) * | 2010-01-27 | 2010-09-29 | 长春理工大学 | Method and system for manufacturing self-cleaning surface structure by adopting laser interference photolithography technology |
| CN102167280A (en) * | 2011-01-13 | 2011-08-31 | 西北工业大学 | Super-hydrophobic silicon micron-nano composite structure and preparation method thereof |
| CN103433618A (en) * | 2013-07-25 | 2013-12-11 | 长春理工大学 | Method for controlling size and distribution of metal surface micro-nanostructure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252967A (en) * | 2017-07-26 | 2017-10-17 | 大连理工大学 | The method that ultra-short pulse laser surface texture is modified manufacture high-absorbility ferrous metal |
| CN107252967B (en) * | 2017-07-26 | 2023-06-20 | 大连理工大学 | Method for manufacturing high-absorptivity ferrous metal by modifying ultrashort pulse laser surface structure |
| CN107598360A (en) * | 2017-09-13 | 2018-01-19 | 中国工程物理研究院激光聚变研究中心 | The method that mild steel multifunction surface is prepared using femtosecond laser |
| CN107999976A (en) * | 2017-12-28 | 2018-05-08 | 上海市激光技术研究所 | One kind has wearability and hydrophobic metal surface micro-structure preparation method |
| CN109483058A (en) * | 2018-12-10 | 2019-03-19 | 吉林大学 | A method of rapid large-area remotely prepares super-hydrophobic antireflex structure on irregular metal curved surface |
| CN109483058B (en) * | 2018-12-10 | 2020-09-29 | 吉林大学 | Method for preparing super-hydrophobic anti-reflection structure on irregular metal curved surface |
| CN112276386A (en) * | 2020-10-29 | 2021-01-29 | 广东省科学院中乌焊接研究所 | Pre-welding pretreatment method and welding method for high-reflectivity metal material |
| CN113102883A (en) * | 2021-03-26 | 2021-07-13 | 西安交通大学 | Antibacterial material and preparation method thereof |
| CN114769623A (en) * | 2022-06-20 | 2022-07-22 | 吉林大学 | Preparation method for manufacturing NiTi alloy super-hydrophilic surface by additive manufacturing |
| CN114769623B (en) * | 2022-06-20 | 2022-09-02 | 吉林大学 | Preparation method for manufacturing NiTi alloy super-hydrophilic surface by additive manufacturing |
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Application publication date: 20161123 |