Results 41 to 50 of about 1,249,680 (275)
Development of a radiopaque dental glass for endodontic laser applications
Journal of Materials Research and Technology, 2020 The aim of this study was to develop a laser-sinterable and radiopaque glass powder as a potential sealer in endodontic therapy. The hypothesis was that it is possible to dope a SiO2-Na2O-CaO-P2O5–based glass with barium (Ba) and tantalum (Ta) in such a ...
Marin Dean Bilandžić +3 more
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Optimum sintering region for laser sintered nylon-12 [PDF]
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2011 It is well known that the mechanical properties of laser sintered Nylon-12 improve with increased applied energy. However properties can reach a maximum after which, the application of additional energy can a lead to a decline in part properties.
M Vasquez, B Haworth, N Hopkinson
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Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
Study on densification of laser ignited reaction sintering of Ni-Al-Cu powder [PDF]
Science of Sintering, 2007 The mechanisms of densification during laser ignited reaction sintering of Ni-Al-Cu powder materials were studied. With the addition of Cu, densification of Ni-Al-Cu specimens made of big particles was realized under laser rapid ignition and sintering ...
Liu Y.H. +4 more
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, 2023 Existing laser sintering systems have several advantages over alternate additive manufacturing technologies but suffer from limitations inherent to the use of a single, self-contained powder bed. This powder bed design limits the ability of the machine to print multiple materials in a single print cycle, obscures the part during printing which can lead
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Residual stresses in selective laser sintering and selective laser melting [PDF]
Rapid Prototyping Journal, 2006 PurposeThis paper presents an investigation into residual stresses in selective laser sintering (SLS) and selective laser melting (SLM), aiming at a better understanding of this phenomenon.Design/methodology/approachFirst, the origin of residual stresses is explored and a simple theoretical model is developed to predict residual stress distributions ...
Mercelis, Peter, Kruth, Jean-Pierre
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Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
wiley +1 more source
Indirect selective laser sintering of an apatite-mullite glass-ceramic [PDF]
, 2004 The main objective of this work was to determine the feasibility of using indirect selective laser sintering (SLS) to produce parts for bone replacement applications from glass-ceramic materials.
Goodridge, Ruth Davina
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Modelling laser beam absorption for powder-based sintering [PDF]
EPJ Web of ConferencesAdditive manufacturing techniques like selective laser sintering face challenges such as residual stresses and warping. Understanding laser-powder interaction is crucial to addressing these issues.
Nijkamp Albert Hendrik +3 more
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Advanced Engineering Materials, EarlyView.Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn +5 more
wiley +1 more source