Nanosecond-laser patterning of 3Y-TZP: Damage and microstructural changes

Roitero, E.; Lasserre, Federico; Roa, J.J.; Anglada, M.; Mücklich, Frank; Jiménez‐Piqué, E.

doi:10.1016/j.jeurceramsoc.2017.05.052

Cited by 45 publications

(32 citation statements)

References 57 publications

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“…[102][103][104][105][106] Several strategies are thus explored to obtain such rough surfaces, the most common being sandblasting and chemical etching. Other surface modifications are today proposed for ceramic implants, as laser patterning [107][108][109] or injection molding in matrices 110 with the targeted roughness. As sandblasting followed potentially by chemical etching is the most commonly developed strategy, such treatments were tested in this case study.…”

Section: Case Study 1: Dental Implants With a High Tolerance To Surmentioning

confidence: 99%

Forty years after the promise of «ceramic steel?»: Zirconia‐based composites with a metal‐like mechanical behavior

et al. 2019

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Forty years ago, Garvie and his Australian co‐workers reported that the stress‐induced transformation of metastable tetragonal zirconia grains to the monoclinic symmetry could give rise to a powerful toughening mechanism. Their results even led them to consider zirconia systems as analogues of certain steels. This seminal paper generated extraordinary excitement in the ceramic community and it is still the subject of extensive research. Transformation toughening is widely used in zirconia materials and results in an increase in strength and toughness when compared to nontransformable ceramics, but the implementation into strong, tough, and sufficiently stable materials has not been fully reached. Zirconia ceramics generally fail at low strains with a much larger scatter in the strength values than metals and require statistical approaches to failure. Here we describe in detail the mechanical behavior laws of ceria‐doped zirconia composites exhibiting a high degree of stress‐induced transformation. They present, to some extent, mechanical behavior analogous to a metal, displaying, (a) significant amount of transformation‐induced plasticity without damage, (b) very high flaw tolerance and (c) almost no dispersion in strength data. They potentially open new application avenues in situations where the advantages of ceramics were dampened by their brittle failure behavior. In particular, the consequences of such behavior for dental implants and additive‐manufactured structures are highlighted.

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Section: Case Study 1: Dental Implants With a High Tolerance To Surmentioning

confidence: 99%

Forty years after the promise of «ceramic steel?»: Zirconia‐based composites with a metal‐like mechanical behavior

et al. 2019

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“…DLIP allows for a high-speed single-step surface patterning process in a wide range of materials, including polymers, metal and ceramics. The main advantage of DLIP over other laser techniques is that the pattern is engraved over the exposed surface at the same time, instead of being created by the conventional laser scanning over the geometry [42]. Further details about this technique can be found in [43].…”

Section: Direct Laser Interference Patterningmentioning

confidence: 99%

“…For example, increasing the number of pulses and the laser energy density can increase depth of patterned structures; however, it has a detrimental effect on surface finishing due to formation of porosity [51]. DLIP can also generate a steep thermal gradient on the surface, which can cause microcracking, directional recrystallization and phase transformation [42,52]. Thus, it is important to optimize laser parameters to achieve the desirable surface patterns with good quality.…”

Section: Direct Laser Interference Patterningmentioning

confidence: 99%

“…However, intergranular cracks homogeneously distributed all over the surface with a maximum depth of 1 μm were observed for all wavelengths and periodicities tested. Furthermore, the laser treatment caused recrystallization, with formation of elongated grains perpendicular to the surface and phase transformation from tetragonal to monoclinic mainly around the crack network [42]. DLIP also has been used in hydroxyapatite (HA) substrates to fabricate surface to improve biocompatibility.…”

Section: Direct Laser Interference Patterningmentioning

confidence: 99%

“…Daniel et al [49] 8% Yttria FSZ Nd:YAG, wavelength: 355 nm, pulse duration: 2.5 ns, pulse number: 1 to 100 pulses applied, fluence: 0.2-0.9 J/cm 2 Daniel et al [50] Y-PSZ and Alumina Nd:YAG, wavelength: 355 nm, pulse duration: 2.5 ns, pulse number: 1, 10 and 50 pulses applied, fluence: 0.35-0.95 J/cm 2 Roitero et al [51] 3Y-TZP Nd:YAG, wavelength: 355 nm, pulse duration: 10 ns, pulse number: 1-10 pulses applied, fluence: 0.15-7.15 J/cm 2 Roitero et al [42] 3Y-TZP Nd:YAG, wavelength: 355 and 532 nm, pulse duration: 10 ns, pulse number: single pulse applied, fluence: 3.5 and 4 J/cm 2 Roitero et al [52] 3Y-TZP Nd:YAG, wavelength: 532 nm, pulse duration: 10 ns, pulse number: single pulse applied, fluence: 4 J/cm 2 Berger et al [53] Hydroxyapatite Nd:YAG, wavelength: 266 and 355 nm, pulse duration: 10 ns, pulse number: 1-100 pulses applied, fluence: 0.6-2.4 J/cm 2…”

Section: Materials Laser Informationmentioning

confidence: 99%

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Direct Laser Interference Patterning of Bioceramics: A Short Review

et al. 2019

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Bioceramics are a great alternative to use in implants due to their excellent biocompatibility and good mechanical properties. Depending on their composition, bioceramics can be classified into bioinert and bioactive, which relate to their interaction with the surrounding living tissue. Surface morphology also has great influence on the implant biological behavior. Controlled texturing can improve osseointegration and reduce biofilm formation. Among the techniques to produce nano- and micropatterns, laser texturing has shown promising results due to its excellent accuracy and reproducibility. In this work, the use of laser techniques to improve surface morphology of biomaterials is reviewed, focusing on the application of direct laser interference patterning (DLIP) technique in bioceramics.

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Direct Laser Interference Patterning of Zirconia Using Infra‐Red Picosecond Pulsed Laser: Effect of Laser Processing Parameters on the Surface Topography and Microstructure

Henriques,

Fabris,

Voisiat

et al. 2023

Adv Funct Materials

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This study investigates the influence of processing parameters when applying direct laser interference patterning (DLIP) on the morphology and microstructure of zirconia surfaces using a 10 ps‐pulsed laser source with 1064 nm wavelength. An experimental testing matrix is built with different values of laser fluence (5.7–18.2 J cm−2) and pulse overlap (66–98%). Surface morphology and microstructure are characterized by confocal microscopy and scanning electron microscopy. Homogeneous line‐like patterns with periodic spatial repetition of 5.0 µm, with varying depths, widths, and aspect ratio, are fabricated using proper processing parameters (5.7–7.6 J cm−2 and 92–96%). Structures with maximum depth of 1.5 µm and sharp edges are obtained (7.6 J cm−2 and 96% overlap). Ablated regions presented a morphology typical of photophysical ablation mechanism, with signs of molten material at the surface. Sub‐micrometric pores and nanodroplets are registered for all conditions, while sub‐micrometric cracks developed only for higher fluences. A processing window conducing to homogenous DLIP structures is set based on experimental data. Periodic structures with multiscale topographic features are successfully obtained on zirconia surfaces using DLIP technology in this study. These outcomes open new perspectives for fabrication of multifunctional zirconia surfaces for advanced biomedical and engineering applications.

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Nanosecond-laser patterning of 3Y-TZP: Damage and microstructural changes

Cited by 45 publications

References 57 publications

Forty years after the promise of «ceramic steel?»: Zirconia‐based composites with a metal‐like mechanical behavior

Forty years after the promise of «ceramic steel?»: Zirconia‐based composites with a metal‐like mechanical behavior

Direct Laser Interference Patterning of Bioceramics: A Short Review

Direct Laser Interference Patterning of Zirconia Using Infra‐Red Picosecond Pulsed Laser: Effect of Laser Processing Parameters on the Surface Topography and Microstructure

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