Microstructures formation on titanium plate by femtosecond laser ablation

Tsukamoto, Masahiro; Kayahara, Takashi; Nakano, Hitoshi; Hashida, Masaki; Katto, Masahito; Fujita, Masayuki; Tanaka, Masataka; Abe, Nobuyuki

doi:10.1088/1742-6596/59/1/140

Cited by 51 publications

(26 citation statements)

References 10 publications

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“…This difference in fluence is a combination of different incident area and reflection of incident photons toward the valleys. These BSGmounds appear to grow in the same way, by the valleys of precursor mounds preferentially ablated due to higher fluence, as other laser-processed, mound-like structures produced on Si, 21,37,45 Ti, 46 and most similarly, Ni.…”

Section: à2mentioning

confidence: 84%

Experimental explanation of the formation mechanism of surface mound-structures by femtosecond laser on polycrystalline Ni60Nb40

Peng

Tsubaki

Zuhlke

et al. 2016

Applied Physics Letters

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Femtosecond laser surface processing (FLSP) is an emerging technique for creating functionalized surfaces with specialized properties, such as broadband optical absorption or superhydrophobicity/superhydrophilicity. It has been demonstrated in the past that FLSP can be used to form two distinct classes of mound-like, self-organized micro/nanostructures on the surfaces of various metals. Here, the formation mechanisms of below surface growth (BSG) and above surface growth (ASG) mounds on polycrystalline Ni60Nb40 are studied. Cross-sectional imaging of these mounds by focused ion beam milling and subsequent scanning electron microscopy revealed evidence of the unique formation processes for each class of microstructure. BSG-mound formation during FLSP did not alter the microstructure of the base material, indicating preferential valley ablation as the primary formation mechanism. For ASG-mounds, the microstructure at the peaks of the mounds was clearly different from the base material. Transmission electron microscopy revealed that hydrodynamic melting of the surface occurred during FLSP under ASG-mound forming conditions. Thus, there is a clear difference in the formation mechanisms of ASG- and BSG-mounds during FLSP.

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Section: à2mentioning

confidence: 84%

Experimental explanation of the formation mechanism of surface mound-structures by femtosecond laser on polycrystalline Ni60Nb40

Peng

Tsubaki

Zuhlke

et al. 2016

Applied Physics Letters

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“…Additionally, previous studies have demonstrated that various laser and environmental parameters can be used to influence the induced surface morphology. For example, the size of micro-structures is a function of the laser fluence, 10,11 the structure protrusion angle is a function of the angle of incidence of the laser beam, 12 the eccentricity of the structures can be tuned through laser polarization, [12][13][14] and the shape of the microstructures can be controlled via the atmosphere during irradiation. 3,10,[15][16][17] However, the very parameters used to control the shape and size also control the growth mechanisms and thus the structural and chemical composition of the structures themselves.…”

mentioning

confidence: 99%

Comparison of the structural and chemical composition of two unique micro/nanostructures produced by femtosecond laser interactions on nickel

Zuhlke

Anderson

Alexander

2013

Applied Physics Letters

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The structural and chemical composition of two unique microstructures formed on nickel, with nanoscale features, produced using femtosecond laser surface processing (FLSP) techniques is reported in this paper. These two surface morphologies, termed mounds and nanoparticle-covered pyramids, are part of a larger class of self-organized micro/nanostructured surfaces formed using FLSP. Cross-sections of the structures produced using focused ion beam milling techniques were analyzed with a transmission electron microscope. Both morphologies have a solid core with a layer of nanoparticles on the surface. Energy dispersive X-ray spectroscopy by scanning transmission electron microscopy studies reveal that the nanoparticles are a nickel oxide, while the core material is pure nickel.

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“…Periodic nanostructures can be created with femtosecond lasers on metals [6][7][8][9][10], semiconductors [11][12][13][14][15][16][17][18][19] and also inside transparent materials [20]. The periodic nanostructures are self-organized in the laserfocused spot, and their arrangement depends on the laser wavelength.…”

Section: Introductionmentioning

confidence: 99%

Cell spreading on titanium periodic nanostructures with periods of 200, 300 and 600 nm produced by femtosecond laser irradiation

et al. 2016

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Titanium (Ti) is an important biomaterial. We have used femtosecond laser irradiation to form periodic nanostructures on Ti plate for control of the cell spreading. In this study, periodic nanostructures with periodicities of 200, 300 and 600 nm were formed on a Ti plates using a femtosecond laser with wavelengths of 258, 388 and 775 nm, respectively. Cell spreading on the Ti plate for periodic nanostructures with periodicity of 200 nm lacked a definite direction, whereas cell spreadings on the Ti plate for periodic nanostructures with periodicities of 300 and 600 nm occurred along the grooves.

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Microstructures formation on titanium plate by femtosecond laser ablation

Cited by 51 publications

References 10 publications

Experimental explanation of the formation mechanism of surface mound-structures by femtosecond laser on polycrystalline Ni60Nb40

Experimental explanation of the formation mechanism of surface mound-structures by femtosecond laser on polycrystalline Ni60Nb40

Comparison of the structural and chemical composition of two unique micro/nanostructures produced by femtosecond laser interactions on nickel

Cell spreading on titanium periodic nanostructures with periods of 200, 300 and 600 nm produced by femtosecond laser irradiation

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