Results 211 to 220 of about 7,744 (266)

Extruder‐based 3D printing of eco‐friendly polymers

open access: yesPolymer International, EarlyView.
Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang   +7 more
wiley   +1 more source

Enabling EVA for TOPCon: How Glass Frit Composition Governs Resistance to Acetic Acid–Induced Corrosion

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
This work reveals that glass frit chemistry governs acetic‐acid‐induced corrosion and damp‐heat stability in LAF‐processed TOPCon modules. Compared with a Pb/B‐rich frit, a Ba/Zn‐modified frit preserves the Ag–Si interface, suppresses contact‐resistance increase and improves module reliability.
Jiexi Fu   +10 more
wiley   +1 more source

Dental Prostheses by means of Selective Laser Sintering

open access: yes, 2004
Kruth, Jean-Pierre   +4 more
openaire   +2 more sources

Selective Laser Sintering

2001
For a given material system, the laser energy density, E s is a key factor which affects quality of the laser sintered structure. A laser energy density is defined by the laser power, laser scan speed and laser beam spot size: $$ {E_s} = \frac{P}{{v\delta }}\left( {J/c{m^2}} \right) $$ (5.1) where P is the incident laser power (Watts), v, the
L. Lü, J. Y. H. Fuh, Y. S. Wong
openaire   +2 more sources

Automatic Laser Control System for Selective Laser Sintering

IEEE Transactions on Industrial Informatics, 2019
The quality of SLS products is dramatically degraded by excessive temperature gradients in the thermal profile of the powder bed. Thermal gradients in the presintering temperature, which is defined as powder temperature before laser scans, are inevitable in commercial SLS machines due to various reasons.
Lixun Zhang   +4 more
openaire   +1 more source

The Selective Laser Sintering of Polycarbonate

CIRP Annals, 1996
Abstract This paper investigates thermal modelling of the selective laser sintering process for amorphous polycarbonate powders. The aim is to develop a simulation for process accuracy and control which are key areas of developement for the new layer manufacturing rapid prototyping technologies.
M. Berzins, T.H.C. Childs, G.R. Ryder
openaire   +1 more source

Selective Laser Sintering of PEEK

CIRP Annals, 2007
Abstract Polyetheretherketone (PEEK) is a good choice especially for manufacturing medical instruments or implants. These parts are typically produced by conventional manufacturing methods, like injection moulding. Selective Laser Sintering (SLS) could offer more flexibility.
M. Schmidt, D. Pohle, T. Rechtenwald
openaire   +1 more source

Selective laser sintering of porcelain

Journal of the European Ceramic Society, 2018
Abstract Selective Laser Sintering (SLS) technique is used to fabricate 3D porcelain products with complex shapes. Commercial powder has been studied and optimized in terms of morphology and particle size distribution in order to get a perfect powder layerwise which remains the critical step of such a technique. The influence of laser energy density (
Danezan, A.   +6 more
openaire   +2 more sources

Selective Laser Sintering of Zirconia

MRS Proceedings, 2000
AbstractA combination of Selective Laser Sintering and colloidal infiltration has been used to create partially stabilized zirconia molds for titanium casting. The mold material system was chosen for its low reactivity with molten titanium and thermal shock resistance.
Nicole R. Harlan   +3 more
openaire   +1 more source

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