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Effect of drying conditions on patterned ceramic films processed by soft micromolding

Guillon, Olivier and Jamin, Christine and Bordia, Rajendra K. (2010):
Effect of drying conditions on patterned ceramic films processed by soft micromolding.
In: Journal of the Ceramic Society of Japan, CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI, 2-22-17 HYAKUNIN-CHO SHINJUKU-KU, TOKYO, 169, JAPAN, pp. 321-325, 118, (1376), ISSN 1882-0743, [Article]

Abstract

A soft lithography technique was used to create patterned green ceramic films including micrometric voids of well-defined geometry. A PDMS mold was filled by high solid content aqueous suspension (40–52% vol.) and the process quality as well as the film green density were evaluated through SEM and non-contact profilometry. Drying is a critical step, as limited shrinkage was observed due to wetting of the elastomer by water. The drying conditions were optimized in order to increase the homogeneity and green packing of the structured films. Controlled geometry features of high aspect ratio were produced down to the micrometer scale. There are many technological uses of patterned films. In this study, we have used this approach to introduce controlled flaws and investigate constrained sintering and crack growth.

Item Type: Article
Erschienen: 2010
Creators: Guillon, Olivier and Jamin, Christine and Bordia, Rajendra K.
Title: Effect of drying conditions on patterned ceramic films processed by soft micromolding
Language: English
Abstract:

A soft lithography technique was used to create patterned green ceramic films including micrometric voids of well-defined geometry. A PDMS mold was filled by high solid content aqueous suspension (40–52% vol.) and the process quality as well as the film green density were evaluated through SEM and non-contact profilometry. Drying is a critical step, as limited shrinkage was observed due to wetting of the elastomer by water. The drying conditions were optimized in order to increase the homogeneity and green packing of the structured films. Controlled geometry features of high aspect ratio were produced down to the micrometer scale. There are many technological uses of patterned films. In this study, we have used this approach to introduce controlled flaws and investigate constrained sintering and crack growth.

Journal or Publication Title: Journal of the Ceramic Society of Japan
Volume: 118
Number: 1376
Publisher: CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI, 2-22-17 HYAKUNIN-CHO SHINJUKU-KU, TOKYO, 169, JAPAN
Uncontrolled Keywords: Thick films, General, Soft lithography, Patterned Films, Constrained Drying, Constrained Sintering, Alumina
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 13 Jul 2011 10:50
Identification Number: 584XL
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