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Proceedings Paper

Drying step optimization to obtain large-size transparent magnesium-aluminate spinel samples
Author(s): Johan Petit; Lucile Lallemant
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Paper Abstract

In the transparent ceramics processing, the green body elaboration step is probably the most critical one. Among the known techniques, wet shaping processes are particularly interesting because they enable the particles to find an optimum position on their own. Nevertheless, the presence of water molecules leads to drying issues. During the water removal, its concentration gradient induces cracks limiting the sample size: laboratory samples are generally less damaged because of their small size but upscaling the samples for industrial applications lead to an increasing cracking probability. Thanks to the drying step optimization, large size spinel samples were obtained.

Paper Details

Date Published: 3 May 2017
PDF: 8 pages
Proc. SPIE 10179, Window and Dome Technologies and Materials XV, 101790K (3 May 2017);
Show Author Affiliations
Johan Petit, ONERA, The French Aerospace Lab. (France)
Lucile Lallemant, ONERA, The French Aerospace Lab. (France)

Published in SPIE Proceedings Vol. 10179:
Window and Dome Technologies and Materials XV
Brian J. Zelinski, Editor(s)

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