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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12911
Title: Microstructural characterization using orientation imaging microscopy of cellular Si/SiC ceramics synthesized by replication of Indian dicotyledonous plants
Authors: Pancholi V.
Mallick D.
AppaRao Ch.
Samajdar I.
Chakrabarti O.P.
Maiti H.S.
Majumdar R.
Published in: Journal of the European Ceramic Society
Abstract: Woods from three dicotyledonous plants of local origin (mango Mangifera indica), jackfruit (Artocarpus integrifolia) and teak (Tectona grandis) were transformed by pyrolysis into carbonaceous preforms and subsequently converted into cellular Si/SiC ceramics by liquid Si-infiltration and reaction. The pyrolyzed mango, jackfruit and teak were characterized in terms of pyrolysis weight loss, shrinkages, bulk density and microstructures. The Si-infiltrated pyrolyzed woods were found to have densities and porosities in the range of 2.46-2.60 gm cm-3 and 1.5-3.6 vol.% respectively. SEM imaging confirmed the preservation of microcellular tissue anatomy of the precursor wood structure in the morphologies of final ceramics. The end ceramics were investigated for the phases present and for crystallographic microtexture. A combination of XPS (X-ray photoelectron spectroscopy), XRD (X-ray diffraction) and OIM (orientation imaging microscopy) was used to establish the presence and the relative locations of silicon (Si), silicon carbide (SiC) and graphite (C). Fine SiC grains did typically surround coarse crystals of Si - the latter had significant presence of Σ3 twin boundaries. Graphite was primarily present in the regions containing SiC and was more textured than the SiC. Distinct orientation relationship could be established between the graphite crystals and the Si grains containing them. © 2006 Elsevier Ltd. All rights reserved.
Citation: Journal of the European Ceramic Society (2007), 27(1): 367-376
URI: https://doi.org/10.1016/j.jeurceramsoc.2006.05.083
http://repository.iitr.ac.in/handle/123456789/12911
Issue Date: 2007
Keywords: Biomorphic materials
Cellular ceramics
Si/SiC
SiC
ISSN: 9552219
Author Scopus IDs: 14071738800
14825383700
57193396367
7006657053
6602469588
7005391800
15923241200
Author Affiliations: Pancholi, V., Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, Bombay, Powai, Mumbai, 400076, India
Mallick, D., Central Glass and Ceramic Research Institute, 196 Raja S.C., Mullick Road, Kolkata, 700032, India
AppaRao, Ch., Department of Metallurgical Engineering, JNTU College of Engineering, Jawaharlal Nehru Technological University, Hyderabad, 500072, India
Samajdar, I., Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, Bombay, Powai, Mumbai, 400076, India
Chakrabarti, O.P., Central Glass and Ceramic Research Institute, 196 Raja S.C., Mullick Road, Kolkata, 700032, India
Maiti, H.S., Central Glass and Ceramic Research Institute, 196 Raja S.C., Mullick Road, Kolkata, 700032, India
Majumdar, R., Department of Chemical Technology, University of Calcutta, 92 A.P.C Road, Kolkata, 700009, India
Corresponding Author: Chakrabarti, O.P.; Central Glass and Ceramic Research Institute, 196 Raja S.C., Mullick Road, Kolkata, 700032, India; email: omprakash@cgcri.res.in
Appears in Collections:Journal Publications [MT]

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