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Influence of irradiation parameters on the polymerization of ceramic reactive suspensions for stereolithography

Chartier, Thierry and Dupas, Cyrielle and Geffroy, Pierre-Marie and Pateloup, Vincent and Colas, Maggy and Cornette, Julie and Guillemet, Sophie Influence of irradiation parameters on the polymerization of ceramic reactive suspensions for stereolithography. (2017) Journal of the European Ceramic Society, 37 (15). 4431-4436. ISSN 0955-2219

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Official URL: https://doi.org/10.1016/j.jeurceramsoc.2017.05.050

Abstract

Stereolithography is an additive manufacturing process which makes it possible to fabricate useful complex 3D ceramic parts, with a high dimensional resolution and a good surface finish. Stereolithography is based on the selective UV polymerization of a reactive system consisting in a dispersion of ceramic particles in a curable monomer/oligomer resin. In order to reach a homogeneous polymerization in the green part, and to limit the risk of cracking and/or deformation during subsequent stages of debinding and sintering due to internal stresses, the influence of various fabrication parameters (laser power, scanning speed, number of irradiations) on the degree of polymerization was investigated. In addition, the impact of the irradiation of the subsequent upper layers onto the previously deposited and irradiated layers was evaluated. The degree of conversion was determined by Fourier Transform Infrared Spectroscopy (FTIR). Raman spectroscopy was also used and a brief comparison between these two methods is given.

Item Type:Article
HAL Id:hal-01727624
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Université de Limoges - UNILIM (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
Funders:
Agence Nationale de la Recherche - ANR
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Deposited By: Yves MOMBOISSE
Deposited On:09 Dec 2019 13:02

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