Laser surface texturing of Ti-6Al-4V by nanosecond laser: Surface characterization, Ti-oxide layer analysis and its electrical insulation performance

Moura, C.G.; Carvalho, Ó.; Gonçalves, L. M.; Cerqueira, M. F.; Nascimento, R. M.; Silva, Filipe

doi:10.1016/j.msec.2019.109901

Cited by 25 publications

(6 citation statements)

References 23 publications

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“…Ti6Al4V alloy has been the main choice for dental and orthopaedic implants due to its mechanical strength, corrosion resistance and biological compatibility (Zhang et al, 2014;Bartolomeu et al, 2016;Arabnejad et al, 2016;Moura et al, 2019;Toptan et al, 2019). However, these implants do fail and bone resorption around the implant habitually occurs.…”

Section: Introductionmentioning

confidence: 99%

Engineering the elastic modulus of NiTi cellular structures fabricated by selective laser melting

Bartolomeu

Costa

Alves

et al. 2020

Journal of the Mechanical Behavior of Biomedical Materials

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Section: Introductionmentioning

confidence: 99%

Engineering the elastic modulus of NiTi cellular structures fabricated by selective laser melting

Bartolomeu

Costa

Alves

et al. 2020

Journal of the Mechanical Behavior of Biomedical Materials

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“…In the laser strategy used, an increase of laser energy is obtained by increasing the wobble amplitude, which is associated with the cavity width. Laser energy density (E) can be calculated through the equation showed in a previous study [9]. For instance, by varying the wobble from 25 to 250 µm, the laser energy density increases from 0.3 J/mm 2 to 30 J/mm 2 , respectively.…”

Section: Antenna Characterizationmentioning

confidence: 99%

A novel approach for micro-antenna fabrication on metal substrate assisted by laser printing for communication systems in smart implants

Moura¹,

Dinis²,

Carvalho³

et al. 2021

Preprint

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The market of orthopedic implants is one of the biggest in the medicine field and it is expected to grow significantly in the next years, mainly because of the continuously growing elderly population. Despite the technological advances, the implant-adjacent biological issues contribute to the implants’ failures, and consequently reduce its lifetime. The development of implants with self-healing capabilities has been explored as a reliable approach to tackle the aforementioned issues. This can be accomplished through the introduction of actuators, sensors and antennas, which ultimately falls into the concept of smart implants. Thus, this work presents an alternative approach for printing antennas in Ti6Al4V substrate by using laser technique, thus allowing for the integration of communication modules directly in the implant. The performance of the fabricated antenna was assessed through simulation and compared with an ideal condition. In both situations, the antenna presented the better results at high frequencies. Nevertheless, the defects arising from the experimental fabrication contributed in a negative manner the antenna’s efficiency.

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“…In the human system, when Ti6Al4V is worn, corrosion can occur, which can lead to an accelerated implant breakdown [5]. To improve the topography and surface roughness of Ti6Al4V alloy, new technologies, such as laser processing, are increasingly being used [6]. Laser processing techniques allow a contactless treatment of the surface of the material.…”

Section: Introductionmentioning

confidence: 99%

Investigation Into the Effects of Laser Texturing on the Wettability of Ti-6Al-4V Alloy

Jakovljević

Mezdić

Baršić

et al. 2022

TFAMENA

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Laser surface texturing is a technology that enables us to achieve very complex surface geometries. In this study, geometries created on the Ti-6Al-4V surface were in the form of parallel grooves. Those geometries were obtained by changing the laser beam speed and the number of passes (one or two). The effects of laser texturing on the roughness and the contact angle of Ti-6Al-4V surfaces on the first day and after 80 days were investigated. The results of this study indicate that the samples treated with two passes of the laser beam and at a lower speed scan show regularities of roughness profile geometry while other laser-treated samples do not. It is shown that the surfaces laser-textured with either one or two passes of the laser beam show no significant changes in the surface wettability after 80 days. The statistical test proves that there is a significant difference (level α = 0.05) between the contact angles on the untreated sample on the first day and after 80 days of treatment.

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Laser surface texturing of Ti-6Al-4V by nanosecond laser: Surface characterization, Ti-oxide layer analysis and its electrical insulation performance

Cited by 25 publications

References 23 publications

Engineering the elastic modulus of NiTi cellular structures fabricated by selective laser melting

Engineering the elastic modulus of NiTi cellular structures fabricated by selective laser melting

A novel approach for micro-antenna fabrication on metal substrate assisted by laser printing for communication systems in smart implants

Investigation Into the Effects of Laser Texturing on the Wettability of Ti-6Al-4V Alloy

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