CN110385531A - A method of realizing that water droplet transports in super hydrophilic aluminum alloy surface - Google Patents
A method of realizing that water droplet transports in super hydrophilic aluminum alloy surface Download PDFInfo
- Publication number
- CN110385531A CN110385531A CN201910815157.2A CN201910815157A CN110385531A CN 110385531 A CN110385531 A CN 110385531A CN 201910815157 A CN201910815157 A CN 201910815157A CN 110385531 A CN110385531 A CN 110385531A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- micro
- alloy surface
- water droplet
- super hydrophilic
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0626—Energy control of the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
- B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention belongs to technical field of metal material surface modification, are related to the preparation method of the super hydrophilic very low power structure of aluminum alloy surface.The present invention provides a kind of method for realizing that water droplet is transported in super hydrophilic aluminum alloy surface, by carrying out the processing of femtosecond laser micro-nano technology in aluminum alloy surface, by controlling femtosecond laser machined parameters, obtains the micro-cannelure array structure of specific morphology and orientation.The present invention is merely with femtosecond laser micro-nano technology technology, adjust the energy density and laser scanning pitch of laser, can micro-cannelure array structure conveniently be processed in aluminum alloy surface, and without generating secondary pollution, so that originally hydrophilic aluminum alloy surface becomes super hydrophilic, and realize orientation fast transport of the water droplet along groove direction.
Description
Technical field
The invention belongs to technical field of metal material surface modification, are related to the system of the super hydrophilic very low power structure of aluminum alloy surface
Preparation Method, and realize that the slewing of water droplet transports using the orientation of micro-cannelure array.
Background technique
The wetting characteristics study on regulation of material surface is widely noticed, and can be answered in many basic research and engineering field
With such as the anisotropic wetting characteristics of material surface, water-oil separating, frost prevention be freeze proof, biomaterial, automatically cleaning and microfluidic device
Equal fields.The surface roughness and chemical analysis of material determine the surface wetting characteristic of material.Therefore, people pass through modification material
The surface that the surface micro-nano structure of material and surface are able to achieve material is modified, so that super-hydrophobic or super hydrophilic spy is presented in material surface
Property.Such as application No. is 201410209463.9 patents of invention to disclose through electrochemical etching, fluorination treatment, photoetching treatment
Step obtains super hydrophobic surface, and the orientation that can satisfy different size water droplet rolls；Application No. is 201510284815.1 again
Patent of invention is disclosed 2a12 type aluminum alloy sample surface is handled by laser processing technology after, sample is placed on electric heating
Baking 4 hours, obtain super-hydrophobic automatic cleaning surface in drying box；And application No. is 201510280015.2 patents of invention to disclose
Aluminium alloy is changed to kirsite, super-hydrophobic automatic cleaning zinc alloy surface also obtained using same method.The above method is logical
It crosses different process and obtains super hydrophobic material surface, realize the directed transport and self-cleaning function of water droplet.Application No. is
200810120739.0 patent of invention disclose by ammonium titanium fluoride aqueous solution to aluminum or aluminum alloy sample carry out anodic oxidation,
The technologies such as liquid deposition, heat treatment obtain one layer thin in super hydrophilic titanium dioxide under visible light on aluminum or aluminum alloy surface
Film.It can be seen that can be with the table of decorative material by technological means such as laser processing, etching technics, chemical treatment and heat treatments
Surface roughness changes superficial layer chemical analysis, realizes super-hydrophobic or ultra-hydrophilic surface preparation.
Although existing technology can effectively prepare the super hydrophilic of super-hydrophobic or super hydrophilic metal surface or metallic substrates
Coating of titanium dioxide, but process flow is relatively cumbersome, and some also need to cause by accurate exposure mask and special chemical composition material
High expensive, pollution laboratory sample even pollutes environment, and can not achieve the water droplet slewing under super hydrophilic state and transport.
In conclusion explore it is a kind of need not move through the processing of any chemical technology, without any secondary pollution, be able to achieve water droplet
The preparation method for the super hydrophilic aluminum alloy surface that slewing transports has important research significance and application value.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind to realize water droplet in super hydrophilic aluminum alloy surface
The method transported obtains micro- ditch of specific morphology and orientation by carrying out the processing of femtosecond laser micro-nano technology in aluminum alloy surface
Slot array structure realizes the directed transport in super hydrophilic aluminum alloy surface water droplet.This method is at low cost, pollution-free, the table of acquisition
Face stability is good, and the slewing for being able to achieve water droplet transports.
To achieve the above object, the technical scheme adopted by the invention is as follows: it is a kind of to realize water droplet in super hydrophilic aluminum alloy surface
The method transported obtains micro- ditch of specific morphology and orientation by carrying out the processing of femtosecond laser micro-nano technology in aluminum alloy surface
Slot array structure, the described method comprises the following steps:
(1) it is dried up after being cleaned by ultrasonic aluminium alloy in deionized water with compressed nitrogen；
(2) aluminum alloy surface after step (1) is completed with the femtosecond pulse irradiation of focusing；
(3) nano particle for completing the aluminum alloy surface attachment of step (2) is blown away with nitrogen, obtains surface specifically specific shape
The micro-cannelure array structure of looks and orientation；
(4) wetting characteristics and water droplet of the aluminum alloy surface of the water characterization covering micro-cannelure array structure of certain volume are utilized
Transport property.
Preferably, the step (2) specifically: it is flat that the aluminium alloy for completing step (1) is fixed on computer-controlled displacement
It is 800nm with central wavelength on platform, pulse width 90fs, repetition rate is the femtosecond pulse of 1kHz, is by focal length
The aluminum alloy surface is irradiated after the lens focus of 15cm, wherein institute's translation stage is the three-dimensional mobile in tri- directions XYZ
Micro-displacement platform.
Preferably, the spot size after the focusing is 40 μm.
Preferably, for the femtosecond pulse with the combination of half-wave plate and Glan prism, realization continuously adjusts laser output
Energy.
Compared with prior art, the invention has the benefit that the present invention is adjusted merely with femtosecond laser micro-nano technology technology
The energy density and laser scanning pitch for saving laser, conveniently can process micro-cannelure array structure in aluminum alloy surface,
And without generating secondary pollution, so that originally hydrophilic aluminum alloy surface becomes super hydrophilic, and water droplet is realized along groove direction
Orientation fast transport.
Detailed description of the invention
Fig. 1 is the SEM that the aluminum alloy sample that number is S1, S2, S3 is handled under different femtosecond laser micro-nano technology parameters
Three-dimensional (3D) scanning confocal microscope figure of figure and micro-cannelure array；Wherein Fig. 1 (a)-Fig. 1 (c) is SEM figure, Fig. 1 (d)-figure
1 (f) is micro-cannelure array 3-D scanning Laser Scanning Confocal Microscope figure；
Fig. 2 is micro- ditch that the aluminum alloy sample that number is S1, S2, S3 is handled under different femtosecond laser micro-nano technology parameters
Two-dimentional (2D) the contoured profile figure in the cross section of slot array；
Fig. 3 is wavefront position at any time of the water droplet of S2 sample finished surface in 0ms, 40ms, 74ms, 500ms
Change schematic diagram；
Fig. 4 is that the same volume drop shape on untreated aluminum alloy sample surface changes with time schematic diagram, wherein t
For the time, Fig. 4 (a)-Fig. 4 (c) is schematic shapes of the water droplet in 0s, 5s, 10s；
Fig. 5 is directed transport speed of the water droplet in sample S1, S2, S3 aluminum alloy surface of same volume.
Specific embodiment
Purposes, technical schemes and advantages in order to better illustrate the present invention, below in conjunction with specific embodiment to the present invention
It is described further.
Embodiment 1
The present embodiment carries out the processing of femtosecond laser micro-nano technology to the aluminum alloy sample that number is S1, S2, S3, obtains specific
The micro-cannelure array structure of pattern and orientation, specifically includes the following steps:
(1) it is dried up after being cleaned by ultrasonic aluminum alloy sample in water with compressed nitrogen；
(2) aluminium alloy for completing step (1) is fixed on computer-controlled displacement platform, is 800nm, pulse with wavelength
Width is 90fs, and repetition rate is the femtosecond pulse of 1kHz, irradiates the aluminium after focal length is the lens focus of 15cm
Alloy surface, wherein institute's translation stage is the three-dimensional micro-displacement platform mobile in tri- directions XYZ；
(3) nano particle for completing the aluminum alloy surface attachment of step (2) is blown away with nitrogen, obtains surface specifically specific shape
The aluminium alloy of the micro-cannelure array structure of looks and orientation.
Above-mentioned femtosecond laser is with the combination of half-wave plate and Glan prism, the scanning speed of femtosecond laser micro-nano technology processing
Size for 1mm/s, laser processing area is 10mm × 6mm, utilizes the scanning electron microscope of model JSM-7001F
(Scanning Electron Microscopy, SEM) and confocal scanning microscope (OLS4000, Olympus) are analyzed and characterized
The micro-nano structure pattern on the aluminum alloy sample surface after femtosecond laser processing.Table 1 is the laser that femtosecond laser micro-nano technology uses
The size of energy density F and sweep span d, processing result are as shown in Figure 1 and Figure 2, wherein energy density=single-pulse laser energy
Amount/facula area.
The parameter of 1 femtosecond laser micro-nano technology of table processing
White arrow indicates the direction of laser scanning in Fig. 1 (a), it will be seen from figure 1 that point of the micro-cannelure array of processing
The period of cloth and surface topography, S1, S2 and S3 sample micro-cannelure array is equal with laser scanning pitch, respectively 30 μm, 50 μ
M and 70 μm, illustrate that the spacing of micro-cannelure array is determined by laser scanning pitch, laser energy density and laser scanning pitch it is big
The small pattern to micro-cannelure array all has an impact.
In order to more clearly show that the micro-cannelure array shape characteristic of femtosecond laser processing, Fig. 2 give micro-cannelure array
Two-dimentional (2D) the contoured profile figure in cross section, figure it is seen that " paddy " of the micro-cannelure array of different laser processing parameters is deep
The varying topography of " ridge " is larger, and " paddy " of S1, S2 and S3 sample is respectively 5 μm, 22 μm and 40 μm deeply.Meanwhile S1 and S2
Number sample is in ansa shape, and second level groove is distributed on " ridge " of S3 sample, is thus illustrated, laser energy density is bigger,
" paddy " of very low power is deeper, and sweep span d is bigger, for example d is 70 μm, more will lead to the formation of second level groove on ridge.
Experimental example 1
This experimental example is whether the aluminum alloy surface for the micro-cannelure array that research has femtosecond laser to process is in super hydrophilic characteristic
Experimental method: it is dripped with the water droplet that capillary needle tubing draws 5 μ l respectively in the sample aluminium crossed through femtosecond laser micro-nano technology
Alloy surface (S2) and the aluminum alloy sample surface crossed without femtosecond laser micro-nano technology are expanded with video camera shooting water droplet along groove
Scattered dynamic process, experimental result are as shown in Figure 3 and Figure 4.
Experimental result: Fig. 3 is the change in location schematic diagram of the water droplet wavefront of S2 sample finished surface at any time, Fig. 3
(a)-Fig. 3 (d) is water droplet in the shape of 0ms, 40ms, 74ms, 500ms, and water droplet is along groove direction (white arrow as shown in Figure 3
It is shown) quickly diffusion.Fig. 4 as a comparison be the same volume drop shape on untreated aluminum alloy sample surface at any time
Change schematic diagram, Fig. 4 (a)-Fig. 4 (c) is water droplet in the schematic shapes of 0s, 5s, 10s, and as shown in Figure 4, the shape of water droplet exists
0s, 5s, 10s are held essentially constant；Thus after illustrating laser treatment, the wetting characteristics of aluminum alloy surface becomes super parent from hydrophilic
Water, i.e. surface are covered with the aluminum alloy surface of the micro-cannelure array of femtosecond laser processing in super hydrophilic characteristic, and realize water droplet
Slewing transport.
Experimental example 2
This experimental example is directed transport speed of the water droplet in sample S1, S2, S3 aluminum alloy surface for comparing same volume
Experimental method: aluminum alloy sample S1, S2 and S3 that femtosecond laser working process is crossed successively are lain in a horizontal plane in into experiment
On platform, video camera is placed on the surface of sample, adjusts fixed after focal length.Video camera is opened, capillary needle tubing is successively used
The water droplet of same volume is dripped to the sample surfaces crossed in three laser treatments, shoots the diffusion process of water droplet and preservation.Pass through shooting
The broadcasting frame number of video and the size of machining area compare (10mm × 6mm), can calculate the transport velocity of water droplet wavefront.
Experimental result: as shown in Figure 5, the transport velocity of the water droplet of sample S1, S2, S3 aluminum alloy surface differs greatly, S1-
Diffusion average speed of the water droplet of S3 sample in 40ms respectively reaches 38mm/s, 200mm/s and 88mm/s, and water droplet is along micro- ditch
The transport velocity of slot array is very fast, wherein S2 sample (machined parameters F=6.37J/cm2With d=50 μm) water droplet it is defeated
Running speed degree is most fast transport velocity.Studies have shown that the transport velocity of water droplet is by laser energy density and laser scanning pitch
The groove of double influence, deep " paddy " structure is conducive to the diffusion of water droplet, but the formation of second level groove is unfavorable for water droplet edge on " ridge "
The diffusion in very low power direction.
In conclusion the present invention, merely with femtosecond laser micro-nano technology technology, the energy density and laser for adjusting laser are swept
Spacing is retouched, conveniently can process the micro-cannelure array structure of specific morphology in aluminum alloy surface, and secondary without generating
Pollution so that originally hydrophilic aluminum alloy surface becomes super hydrophilic, and realizes orientation fast transport of the water droplet along groove direction.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should
Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention
And range.
Claims (4)
1. a kind of realize the method that transports of water droplet in super hydrophilic aluminum alloy surface, which is characterized in that by aluminum alloy surface into
The processing of row femtosecond laser micro-nano technology, obtains the micro-cannelure array structure of specific morphology and orientation, the method includes following steps
It is rapid:
(1) it is dried up after being cleaned by ultrasonic aluminium alloy in deionized water with compressed nitrogen；
(2) aluminum alloy surface after step (1) is completed with the femtosecond pulse irradiation of focusing；
(3) with nitrogen blow away complete step (2) aluminum alloy surface attachment nano particle, obtain the specific specific morphology in surface and
The micro-cannelure array structure of orientation；
(4) using certain volume water characterization covering micro-cannelure array structure aluminum alloy surface wetting characteristics and water droplet it is defeated
Transport characteristic.
2. method as described in claim 1, which is characterized in that the step (2) specifically: the aluminium of step (1) will be completed
Alloy is fixed on computer-controlled displacement platform, is 800nm with central wavelength, pulse width 90fs, and repetition rate is
The femtosecond pulse of 1kHz irradiates the aluminum alloy surface after focal length is the lens focus of 15cm, wherein the displacement
Platform is the three-dimensional micro-displacement platform mobile in tri- directions XYZ.
3. method according to claim 2, which is characterized in that the spot size after the focusing is 40 μm.
4. the method as claimed in claims 1-3, which is characterized in that the femtosecond pulse is with half-wave plate and Glan prism
The energy for continuously adjusting laser output is realized in combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815157.2A CN110385531A (en) | 2019-08-30 | 2019-08-30 | A method of realizing that water droplet transports in super hydrophilic aluminum alloy surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815157.2A CN110385531A (en) | 2019-08-30 | 2019-08-30 | A method of realizing that water droplet transports in super hydrophilic aluminum alloy surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110385531A true CN110385531A (en) | 2019-10-29 |
Family
ID=68289480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910815157.2A Pending CN110385531A (en) | 2019-08-30 | 2019-08-30 | A method of realizing that water droplet transports in super hydrophilic aluminum alloy surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110385531A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001938A (en) * | 2019-12-10 | 2020-04-14 | 中南大学 | Liquid drop spontaneous rapid transportation method |
| CN111673284A (en) * | 2020-05-29 | 2020-09-18 | 上海工程技术大学 | Method for improving wetting and spreading performance of reaction wetting system material |
| CN113118633A (en) * | 2021-04-21 | 2021-07-16 | 吉林大学 | Method for preparing periodic microstructure on surface of titanium alloy through nanosecond laser irradiation |
| CN113336425A (en) * | 2021-06-26 | 2021-09-03 | 浙江师范大学 | Photovoltaic glass droplet directional spontaneous movement cleaning method |
| CN116265595A (en) * | 2021-12-17 | 2023-06-20 | 中国科学院长春光学精密机械与物理研究所 | Corrosion-resistant aluminum alloy and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377280A (en) * | 2014-11-14 | 2015-02-25 | 江苏鑫博电子科技有限公司 | Method for manufacturing groove structure in substrate wafer |
| CN104625415A (en) * | 2014-12-17 | 2015-05-20 | 中国航空工业集团公司北京航空制造工程研究所 | Method and device for preparing bionic super-hydrophobic micro-nano surface through femtosecond laser |
| CN105566666A (en) * | 2014-10-13 | 2016-05-11 | 大连理工大学 | Method for realizing liquid drop directional transportation on super-hydrophobic substrate |
| CN108620728A (en) * | 2018-05-09 | 2018-10-09 | 广州大学 | Semiconductor silicon surface large area regular distribution nano-pore array structure preparation method |
| CN109534286A (en) * | 2018-11-05 | 2019-03-29 | 广州大学 | A kind of material surface nesting nanostructure and preparation method thereof |
| CN109877472A (en) * | 2019-04-22 | 2019-06-14 | 北京理工大学 | The method for preparing super hydrophilic-super-hydrophobic composite S ERS substrate based on femtosecond laser |
-
2019
- 2019-08-30 CN CN201910815157.2A patent/CN110385531A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105566666A (en) * | 2014-10-13 | 2016-05-11 | 大连理工大学 | Method for realizing liquid drop directional transportation on super-hydrophobic substrate |
| CN104377280A (en) * | 2014-11-14 | 2015-02-25 | 江苏鑫博电子科技有限公司 | Method for manufacturing groove structure in substrate wafer |
| CN104625415A (en) * | 2014-12-17 | 2015-05-20 | 中国航空工业集团公司北京航空制造工程研究所 | Method and device for preparing bionic super-hydrophobic micro-nano surface through femtosecond laser |
| CN108620728A (en) * | 2018-05-09 | 2018-10-09 | 广州大学 | Semiconductor silicon surface large area regular distribution nano-pore array structure preparation method |
| CN109534286A (en) * | 2018-11-05 | 2019-03-29 | 广州大学 | A kind of material surface nesting nanostructure and preparation method thereof |
| CN109877472A (en) * | 2019-04-22 | 2019-06-14 | 北京理工大学 | The method for preparing super hydrophilic-super-hydrophobic composite S ERS substrate based on femtosecond laser |
Non-Patent Citations (1)
| Title |
|---|
| 吴先福 等: "飞秒激光制备航空用铝靶材表面润湿功能微纳结构的研究", 《长春理工大学学报（自然科学版）》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001938A (en) * | 2019-12-10 | 2020-04-14 | 中南大学 | Liquid drop spontaneous rapid transportation method |
| CN111673284A (en) * | 2020-05-29 | 2020-09-18 | 上海工程技术大学 | Method for improving wetting and spreading performance of reaction wetting system material |
| CN113118633A (en) * | 2021-04-21 | 2021-07-16 | 吉林大学 | Method for preparing periodic microstructure on surface of titanium alloy through nanosecond laser irradiation |
| CN113336425A (en) * | 2021-06-26 | 2021-09-03 | 浙江师范大学 | Photovoltaic glass droplet directional spontaneous movement cleaning method |
| CN113336425B (en) * | 2021-06-26 | 2023-01-31 | 浙江师范大学 | Photovoltaic glass droplet directional spontaneous movement cleaning method |
| CN116265595A (en) * | 2021-12-17 | 2023-06-20 | 中国科学院长春光学精密机械与物理研究所 | Corrosion-resistant aluminum alloy and preparation method thereof |
| CN116265595B (en) * | 2021-12-17 | 2023-09-05 | 中国科学院长春光学精密机械与物理研究所 | Corrosion-resistant aluminum alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110385531A (en) | A method of realizing that water droplet transports in super hydrophilic aluminum alloy surface | |
| Zhang et al. | Achieving of bionic super-hydrophobicity by electrodepositing nano-Ni-pyramids on the picosecond laser-ablated micro-Cu-cone surface | |
| CN109226973B (en) | System and method for preparing bionic super-hydrophobic metal surface through laser-electrochemical deposition | |
| CN106583930A (en) | Method for achieving reversible wettability of titanium sheet based on femtosecond laser direct writing | |
| CN104625415B (en) | Femtosecond laser prepares method and the device of bionic super-hydrophobic micro nano surface | |
| CN102285635B (en) | System and method for manufacturing metal micro-nano structure by using laser | |
| Gökhan Demir et al. | Laser surface structuring of AZ31 Mg alloy for controlled wettability | |
| Samanta et al. | Nanosecond pulsed laser processing turns engineering metal alloys antireflective and superwicking | |
| CN104911599B (en) | A kind of method that aluminium alloy super-hydrophobic automatic cleaning surface is prepared using ultrafast laser | |
| CN106392332B (en) | A kind of laser-graining method for improving medical implant surfaces cell adhesion | |
| CN112872597B (en) | Method for preparing super-hydrophobic surface by combining femtosecond laser direct writing and electroplating method | |
| CN109913919A (en) | A kind of processing method and device preparing micro-nano two-dimensional structure in workpiece surface | |
| Li et al. | Comparison of structures and hydrophobicity of femtosecond and nanosecond laser-etched surfaces on silicon | |
| CN104985328B (en) | A kind of method that utilization nanosecond laser prepares titanium alloy super-hydrophobic frost resistance surface | |
| He et al. | Lotus-leaf-like microstructures on tungsten surface induced by one-step nanosecond laser irradiation | |
| CN104911668B (en) | It is a kind of to prepare a nanometer method for bellmouth anodic oxidation aluminium formwork | |
| Wang et al. | Femtosecond laser ablation of polytetrafluoroethylene (Teflon) in ambient air | |
| CN104907697B (en) | A kind of method that utilization ultrafast laser prepares titanium alloy super-hydrophobic frost resistance surface | |
| CN107971628A (en) | Method based on femtosecond laser dynamic control customization copper surface periodic structure | |
| CN101502919A (en) | Device and method for preparing polyvinylidene fluoride with ultra-hydrophobic surface | |
| CN112025098B (en) | Preparation method of titanium alloy surface with low reflectivity to visible light | |
| CN109868462A (en) | A method of realizing laser assisted gold ion electronation at the nanoscale | |
| CN112894143B (en) | Method for regulating and controlling surface wettability of stainless steel based on femtosecond laser direct writing scanning | |
| Wang et al. | Influence of femtosecond laser pulse sequence on the morphology and roughness of titanium surface micro-patterns | |
| Ma et al. | Fabrication of regular hierarchical structures with superhydrophobic and high adhesion performances on a 304 stainless steel surface via picosecond laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191029 |
|
| RJ01 | Rejection of invention patent application after publication |