Microstructure and mechanical properties of titanium subjected to direct laser interference lithography

Kuczyńska-Zemła, Donata; Kwaśniak, Piotr; Sotniczuk, Agata; Spychalski, Maciej; Wieciński, Piotr; Zdunek, Joanna; Ostrowski, Roman; Garbacz, Halina

doi:10.1016/j.surfcoat.2019.02.026

Cited by 16 publications

(11 citation statements)

References 45 publications

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“… However, the treated surfaces need an additional cleaning step for the removal of used particles and the toxic etching solution. As one‐step fabrication methods, different technologies such as stand‐alone acid etching, anodization, plasma spraying, and laser ablation methods were investigated in the past . Recently, we published a study about improving the biological performance of titanium dental implants using direct laser interference patterning (DLIP) with a nanosecond pulsed laser system .…”

Section: Introductionmentioning

confidence: 99%

Ultrashort Pulsed Laser Surface Patterning of Titanium to Improve Osseointegration of Dental Implants

et al. 2019

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Ultrashort pulsed direct laser interference patterning (DLIP) is used to generate hierarchical line‐like patterns on titanium surfaces to control cell adhesion and spreading on dental implants, thereby improving osseointegration. The DLIP structures have spatial periods of 3, 5, 10, and 17 μm. They are produced using a laser source with a pulse duration of 10 ps and cumulated energy densities between 0.1 and 78.9 J cm−2. Laser‐induced periodic surface structures (LIPSS) and submicron features are obtained on the treated samples. The DLIP treatment leads to the development of a thick titanium oxide layer, which is imaged and quantified using time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS). Several days (30–56) after the laser treatment, specimens with larger spatial periods are hydrophilic, whereas samples with spatial periods of 3 μm are hydrophobic. Seeded human osteoblasts on the laser‐structured samples show 2.5 times higher cell numbers after 7 days in vitro culture compared with osteoblasts on a grit‐blasted and etched reference sample. Finally, cell adhesion to a structured 3D dental implant is demonstrated.

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Section: Introductionmentioning

confidence: 99%

Ultrashort Pulsed Laser Surface Patterning of Titanium to Improve Osseointegration of Dental Implants

et al. 2019

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“…Lower-magnification images of the rGO/S composite (Figure e,f) illustrate similar behavior across the composite as a whole, with some sulfur aggregates present, but also the uniform distribution of sulfur across the rGO material on a large scale. While it could be suggested that the uniform sulfur signal in EDS mapping stems from sulfur particles that are buried under rGO sheets, the penetration depth of EDS is typically only a few microns into the sample, and the sulfur aggregates observed are typically a few microns in size. With BSE imaging, the sulfur particles, which possess a higher atomic number than carbon, are highly visible, making it unlikely that any aggregates could present an EDS signal without being visible in the BSE images.…”

Section: Results and Discussionmentioning

confidence: 99%

Probing Sulfur Deposition onto Carbon Nanomaterials from Aqueous, Elemental Sulfur Sols for Lithium–Sulfur Batteries

Hawes

Punckt

Pope

2021

ACS Appl. Mater. Interfaces

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Sulfur cathodes for lithium–sulfur batteries often rely on integrating sulfur with high surface area carbonaceous materials. Nanoscale mixing is typically achieved by a lengthy, high-temperature melt imbibition approach that employs carbon nanomaterials in an aggregated solid form. In this work, we present a simple strategy to coat carbon nanomaterials with sulfur in a cost-effective, room-temperature process using inexpensive elemental sulfur. Our results are based on hydrophobic sulfur sols, which have rarely been examined for use in the preparation of sulfur cathodes. We study the deposition mechanism on different carbon materials and find that sulfur dissolves from the sol into the aqueous phase and coats the surface of reduced graphene oxide (rGO) by heterogeneous nucleation and growth, but that this mechanism is not favored for carbon materials such as Ketjen black (KB) and graphene oxide (GO), for which undesirable homogeneous nucleation of micron-sized, insulating sulfur crystals is observed. High loading (3–4 mgsulfur/cm2) rGO-based cathodes prepared using this approach achieve discharge capacities of 1300 mAh/gsulfur (∼4.8 mAh/cm2) at 0.1C and achieve capacities 7-fold higher than cells prepared via traditional melt imbibition approaches at higher rates of 0.8C and 1C. Cells prepared without the need for added binder or conductive additive achieve projected full cell energy densities of 468 Wh/kg at 0.1C when taking into account all inactive components and assuming no lithium metal degradation, indicating that the deposition of sulfur from hydrophobic sols onto carbon nanomaterials can serve as a simple, aqueous-based, one-step process to prepare high sulfur loading cathodes with high projected energy densities.

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“…Using two-beam interference, uniform long-range microscale island-like structures are produced by overlapping laser scans at a 90-deg angle, as shown in Fig. 13(b) [169]. With a single shot of four interfering fs laser beams at each spot, circular bump arrays on a gold film are formed [170].…”

Section: Laser Surface Texturing Methods and Diverse Patternedmentioning

confidence: 99%

mentioning

confidence: 99%

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

Shin

Lei

et al. 2020

Journal of Manufacturing Science and Engineering

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Recent years have witnessed a rapid growth of the laser market. Figure 1 shows the recent revenues of laser sales with about 50% increase in revenue over recent four years , which far exceeds the growth of other industrial sectors. More than one third of this revenue belongs to the category of laser materials processing arena. Undoubtedly, lasers have been playing increasingly important roles in various industrial manufacturing sectors. This article is to capture some of important developments in the rapidly growing areas of laser-based manufacturing and materials processing and also describe important technological issues pertaining to various laser-based manufacturing processes. The topics to be covered in this paper include more popularly used processes in industry such as laser additive manufacturing, laser-assisted machining, laser micromachining, laser forming, laser surface texturing, laser welding, and laser shock peening, although there are several additional areas of laser applications. In each section, a brief overview of the process is provided, followed by critical issues in implementing the process, such as properties, predictive modeling, and process monitoring, and finally some remarks on future issues that can guide researchers and practitioners.

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Microstructure and mechanical properties of titanium subjected to direct laser interference lithography

Cited by 16 publications

References 45 publications

Ultrashort Pulsed Laser Surface Patterning of Titanium to Improve Osseointegration of Dental Implants

Ultrashort Pulsed Laser Surface Patterning of Titanium to Improve Osseointegration of Dental Implants

Probing Sulfur Deposition onto Carbon Nanomaterials from Aqueous, Elemental Sulfur Sols for Lithium–Sulfur Batteries

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

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