Microstructural characterization and tribological behavior of Laser Furnace processed ceramic tiles

Rey-García, F.; Gutiérrez‐Mora, F.; Borrel, C.J.; Estepa, L. C.; Angurel, L.A.; Fuente, G.F. de la

doi:10.1016/j.ceramint.2018.01.133

Cited by 16 publications

(12 citation statements)

References 25 publications

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“…. On the other hand, thermal incubation is also determined by the above processing parameters but determined directly by the number of incident pulses within a given area of the surface in a given time, combined with the degree of overlap between consecutive pulses [48][49][50]. A combination of irradiance and incubation values determines the degree of interaction between the laser and the substrate, and thus the degree of damage to the latter [51].…”

Section: Resultsmentioning

confidence: 99%

Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study

et al. 2021

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Controlled laser irradiation parameters using recently developed sub-nanosecond pulsed laser technology with emission wavelength in the near Infrared regime (1064 nm) have been assessed on a Pleistocene bone from the archaeological site of Sierra de Atapuerca, Spain. Burst pulse mode was employed to explore contaminant removal efficiency, while at the same time, assessing the degree of damage produced to the underlying original substrate surface. The surface morphology and composition of the deteriorated bone have been characterized, along with the effects of laser irradiation at 1064 nm, using Optical Microscopy (OM), Scanning Electron Microscopy–with Energy Dispersive X-ray Spectrometry (SEM–EDS), and X-ray Photoelectron Spectroscopy (XPS). The most effective laser cleaning parameters in burst mode have been identified in order to optimize the emission parameters of the laser, thus localizing its interaction within the outermost layers of contaminants and degradation products, avoiding damage to the underlying original bone surface. Hence, threshold cleaning and substrate damage values have been determined for this new sub-ns laser, paving the way to safer laser cleaning procedures that may be useful for the effective conservation of bone archaeological artifacts.

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Section: Resultsmentioning

confidence: 99%

Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study

et al. 2021

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“…Lasers can be used for surface cleaning, scribing, sintering, cutting, drilling, milling or marking; they can also be a light source in different diagnostic procedures. In ceramic processing, two types of lasers are used: CO 2 lasers that emit in the far-infrared region of the spectrum, wavelength λ = 10.6 μm, and solid state lasers with output wavelengths ranging from the ultraviolet through the visible to the near-infrared (Nd: YAG) [3][4][5][6][7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

“…Laser interaction with materials is a very complex phenomenon [1,3,5,7,9]. It has been a subject of many research works, but there are still many insufficiently known phenomena.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of a ceramic surface temperature field induced by pulsed Nd:YAG laser

et al. 2021

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Temperature distribution induced by laser radiation is a very important parameter for an efficient and safe application of lasers in different ceramic processing techniques. This paper presents the results of an infrared thermography (IRT) application for monitoring temperature distribution on a ceramic surface during Nd: YAG laser irradiation with different fluences and 8ns pulse duration. FLIR, E40 and SC7200 IR cameras were used with the aim of recording the maximum temperature in the irradiated zones. It was expected that IRT could give some information related to the heat affected zone and possible damage to the base material; however, the results have shown that IR cameras, even those with high performance such as SC7200, cannot record the maximum temperature value at the moment of laser operation, but only the average temperature of the bulk sample material after laser pulses. The results of the numerical simulation have confirmed the value of the thermographic measurements. The microstructure and micromorphology of the ceramic surface before and after the laser treatment were analysed by optical and scanning electron microscopy as well as by examining the roughness of the irradiated and non-irradiated surfaces, while the micromechanical changes were analysed by comparing the micro-hardness of the irradiated and non-exposed surfaces.

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“…Ceramic materials are widely used due to making up for the de ciency of metals and alloys. However, due to the high friction coe cient of ceramic materials, it is di cult to achieve the degree of oil-free lubrication [8][9][10]. Therefore, the research on the tribological properties of ceramic materials has been paid attention to the scienti c eld.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Tribological Behaviors of as-sprayed Al2O3 Coatings With the Effects of MoS2 Lubricant and External Loads

Deng

Tang

et al. 2020

Preprint

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The Al2O3-MoS2 ceramic-based lubricating coating was prepared via introducing MoS2 dry film lubricant into the pores and cracks of thermal-sprayed Al2O3 coating by facial paint spraying method. The microstructure, mechanical properties and tribological behaviors of the as-received Al2O3-MoS2 coating were thoroughly evaluated. The results illustrated that MoS2 was mainly concentrated on the shallow surface of the Al2O3 coating, and thus more uniform, more compact and smoother Al2O3-MoS2 coating was obtained. Meanwhile, the mechanical properties of the Al2O3 coating did not change significantly after the introduction of MoS2. The tribological experiments illustrated that compared with the Al2O3 coating, the friction coefficient and specific wear rate of the Al2O3-MoS2 coating under different loads were greatly reduced due to the generation of the lubricating layer. Especially under the load of 5 N, the friction coefficient was as low as 0.36, and the wear rate (1.49×10-5 mm3×(N×m)-1) was almost 17 times lower than that of Al2O3 coating (2.53×10-4 mm3×(N×m)-1). This research established a new and simple way to prepare ceramic-based self-lubricating coatings by using temperature-sensitive solid lubricants.

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Microstructural characterization and tribological behavior of Laser Furnace processed ceramic tiles

Cited by 16 publications

References 25 publications

Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study

Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study

Monitoring of a ceramic surface temperature field induced by pulsed Nd:YAG laser

Investigation on the Tribological Behaviors of as-sprayed Al2O3 Coatings With the Effects of MoS2 Lubricant and External Loads

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Microstructural characterization and tribological behavior of Laser Furnace processed ceramic tiles

Cited by 16 publications

References 25 publications

Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study

Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study

Monitoring of a ceramic surface temperature field induced by pulsed Nd:YAG laser

Investigation on the Tribological Behaviors of as-sprayed Al2O3&nbsp;Coatings With the Effects of MoS2&nbsp;Lubricant and External Loads

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Investigation on the Tribological Behaviors of as-sprayed Al2O3 Coatings With the Effects of MoS2 Lubricant and External Loads