Rapid Manufacturing of Ceramic Parts by Selective Laser Melting

Wilkes, Jan; Hagedorn, Yves‐Christian; Ocylok, Sörn; Wissenbach, Konrad

doi:10.1002/9780470944066.ch13

Cited by 15 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Ti6Al4V alloy scaffold structures were prepared by the selective laser melting (SLM) technique. This is a layer-wise material addition technique that allows generating complex 3D parts by selectively consolidating successive layers of powder material on top of each other, using thermal energy supplied by a focused and computer controlled laser beam [35,36]. The surfaces of the Ti6Al4V alloy scaffold structures were analyzed by SEM (Figure 11).…”

Section: Resultsmentioning

confidence: 99%

Comparative Analysis of the Corrosion Resistance of Titanium Alloys Intended to Come into Direct or Prolonged Contact with Live Tissues

Ionescu¹,

Reclaru²,

Ardelean

et al. 2019

Materials

View full text Add to dashboard Cite

The evaluation of the biological safety and degradation of materials is quite important for risk assessment in various biomedical applications. In this study, two procedures were followed to characterize the corrosion resistance of different Ti-based alloys. The first one consisted of performing specific electrochemical tests (open circuit potential, linear resistance polarization, Tafel plots, potentiodynamic polarization) in order to highlight their behavior to the general and localized corrosion. The static and dynamic fatigue cycles combined with crevice corrosion conducted on a new prototype have completed the study. The second procedure followed was a cations extraction investigation (by inductively coupled plasma mass spectrometry) in order to verify the ionic permeability of the oxides layers formed on the surfaces. Optical and scanning electron microscopy were used for surface analysis. It was noticed that in these two electrolytes, the bulk Ti-based alloys presented an almost similar general corrosion behavior. The small differences of behavior for Ti6Al4V scaffolds were correlated to the surface oxidation and roughness (owing to the selective laser melting process). The Ti alloys presented no traces of localized corrosion at the end of the test. The fatigue cycles revealed that a strong and adhesive oxides film was formed during the static cycles (difficult to remove even during the depassivation steps). The concentration of cations released was at the detection limit, revealing very good passivation films, in adequacy with the all the other results.

show abstract

Section: Resultsmentioning

confidence: 99%

Comparative Analysis of the Corrosion Resistance of Titanium Alloys Intended to Come into Direct or Prolonged Contact with Live Tissues

Ionescu¹,

Reclaru²,

Ardelean

et al. 2019

Materials

View full text Add to dashboard Cite

show abstract

“…Wissenbach's research group (2010-2013) at the Fraunhofer Institute for Laser Technology investigated the dCLM of an alumina/ zirconia powder mixture [310,311,312,304]. They used the eutectic ratio of 58.5:41.5 wt/wt Al 2 O 3 /ZrO 2 which has a significantly lower melting point (1860 °C) than the single phases (2072 °C and 2710 °C, respectively).…”

Section: Methodsmentioning

confidence: 99%

Additive manufacturing of advanced ceramic materials

Lakhdar

Tuck

Binner

et al. 2021

Progress in Materials Science

425

172

View full text Add to dashboard Cite

“… 8 With additive manufacturing techniques, pore‐architectures can be predesigned using computer aided design (CAD), providing a better control over pore architecture. 9 Various AM technologies have been used to fabricate porous ceramic structures, including selective laser sintering (SLS), 10 , 11 selective laser melting (SLM), 12 , 13 stereolithography (SLA), 14 , 15 fused deposition modeling (FDM), 16 , 17 , 18 , 19 inkjet printing (IJP), 20 , 21 binder‐based 3D‐printing (3DP), 22 , 23 , 24 and Direct Ink Writing (DIW). 25 , 26 , 27 In most of these techniques, ceramic particles mixed with a binder are printed into a green body scaffold and then sintered to obtain a fully densified scaffold, which also results in shrinkage of the structure.…”

Section: Introductionmentioning

confidence: 99%

In situ 4D tomography image analysis framework to follow sintering within 3D‐printed glass scaffolds

Kondarage

Poologasundarampillai

Nommeots‐Nomm

et al. 2021

J Am Ceram Soc.

View full text Add to dashboard Cite

We propose a novel image analysis framework to automate analysis of X-ray microtomography images of sintering ceramics and glasses, using open-source toolkits and machine learning. Additive manufacturing (AM) of glasses and ceramics usually requires sintering of green bodies. Sintering causes shrinkage, which presents a challenge for controlling the metrology of the final architecture.Therefore, being able to monitor sintering in 3D over time (termed 4D) is important when developing new porous ceramics or glasses. Synchrotron X-ray tomographic imaging allows in situ, real-time capture of the sintering process at both micro and macro scales using a furnace rig, facilitating 4D quantitative analysis of the process. The proposed image analysis framework is capable of tracking and quantifying the densification of glass or ceramic particles within multiple volumes of interest (VOIs) along with structural changes over time using 4D image data. The framework is demonstrated by 4D quantitative analysis of bioactive glass ICIE16 within a 3D-printed scaffold. Here, densification of glass particles within 3 VOIs were tracked and quantified along with diameter change of struts and interstrut pore size over the 3D image series, delivering new insights on the sintering mechanism of ICIE16 bioactive glass particles in both micro and macro scales.

show abstract

Rapid Manufacturing of Ceramic Parts by Selective Laser Melting

Cited by 15 publications

References 6 publications

Comparative Analysis of the Corrosion Resistance of Titanium Alloys Intended to Come into Direct or Prolonged Contact with Live Tissues

Comparative Analysis of the Corrosion Resistance of Titanium Alloys Intended to Come into Direct or Prolonged Contact with Live Tissues

Additive manufacturing of advanced ceramic materials

In situ 4D tomography image analysis framework to follow sintering within 3D‐printed glass scaffolds

Contact Info

Product

Resources

About