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Probing lamellar twins in spark plasma sintered CaTiO3 using Electron Backscattered Diffraction

Ravikumar, K and Kalsar, Rajib and Pramanik, Sudipta and Suwas, Satyam and Basu, Bikramjit (2017) Probing lamellar twins in spark plasma sintered CaTiO3 using Electron Backscattered Diffraction. In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 37 (13). pp. 4235-4240.

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Official URL: https://doi.org/10.1016/j.jeurceramsoc.2017.04.072


The twinning characteristics of spark plasma sintered CaTiO3 with orthorhombic perovskite structure is critically analysed using Electron Backscatter Diffraction (EBSD) technique. The twins are characterized by a sub-micron interlamellar spacing with a misorientation of approximate to 90. The crystallographic relationship between the matrix and the twin has been analysed in terms of misorientation matrix using the Kikuchi patterns obtained from the EBSD scan. From the analysis of angle/axis pairs at the boundary, the twin axis was found to be of type 101]. These twins with high angle boundaries are expected to enhance fracture resistance through crack deflection and crack tip shielding mechanisms. (C) 2017 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 29 Jul 2017 06:06
Last Modified: 03 Nov 2018 08:54
URI: http://eprints.iisc.ac.in/id/eprint/57484

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