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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/24340
Title: A processing route for dip-coating and characterization of multi-structured ceramic foam
Authors: Rastogi, Vibhore Kumar
Jiang B.
Sturzenegger P.N.
Gonzenbach U.T.
Vetterli M.
Blugan G.
Kuebler J.
Published in: Ceramics International
Abstract: Ceramic foam materials have received great attention in recent years for their light weight, thermal/electrical insulation, high crack tolerance and good machinability properties. However, some applications demand higher mechanical strength, better resistivity of the surface against mechanical impact or improved abrasion resistance. In this paper, the feasibility of dip coating 89 vol% porous, green alumino-silicate foam bars with dimensions in the centimeter range was studied and a dip coating route was proposed. The surface morphology of uncoated and coated foam bars was first analyzed by scanning electron microscopy (SEM) and later detailed using the GelsightTM method. Mechanical properties were determined by 4-point bending. A dense coating layer with a uniform thickness and good interfacial adhesion was obtained over the foam. Consequently, a three-fold increase in the flexural strength was measured for coated parts. In addition, the versatility of the developed dip coating route was demonstrated coating samples of bigger size like panels as well as complex geometries like cylindrical crucibles. © 2019 Elsevier Ltd and Techna Group S.r.l.
Citation: Ceramics International, 45(17): 21887-21893
URI: https://doi.org/10.1016/j.ceramint.2019.07.199
http://repository.iitr.ac.in/handle/123456789/24340
Issue Date: 2019
Publisher: Elsevier Ltd
Keywords: Coated foam
Dip coating
Flexural strength
GelsightTM method
Porous ceramics
Surface roughness
ISSN: 2728842
Author Scopus IDs: 55542689900
57210132874
53164885100
13906660900
57194181877
56244284200
7004658317
Author Affiliations: Vibhore Kumar Rastogi, Laboratory for High Performance Ceramics, Empa, Duebendorf, 8600, Switzerland, Department of Bioproducts and Biosystems, School of Chemical Technology, Aalto University, Espoo, 02150, Finland
Jiang, B., Laboratory for High Performance Ceramics, Empa, Duebendorf, 8600, Switzerland
Sturzenegger, P.N., de Cavis AG, Dübendorf, 8600, Switzerland
Gonzenbach, U.T., de Cavis AG, Dübendorf, 8600, Switzerland
Vetterli, M., Inspire AG, icams, St. Gallen, 9014, Switzerland
Blugan, G., Laboratory for High Performance Ceramics, Empa, Duebendorf, 8600, Switzerland
Kuebler, J., Laboratory for High Performance Ceramics, Empa, Duebendorf, 8600, Switzerland
Funding Details: The authors would like to acknowledge the financial support of the Kommission für Technologie und Innovation, Switzerland for funding this work under the project “DeepC” KTI project No. 19260.1 PFIW-IW . Kommission für Technologie und Innovation, CTI: 19260.1 PFIW-IW
Corresponding Author: Vibhore Kumar Rastogi; Department of Bioproducts and Biosystems, Finland; email: vibhore.rastogi@aalto.fi
Appears in Collections:Journal Publications [PT]

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