Monoclinic to cubic phase transformation in combustion synthesized gadolinium oxide

Hadke, Shreyash S and Kalimila, Madhu Telugu and Rathkanthiwar, Shashwat and Sonkusare, Reshma and Gour, Shivani and Ballal, Atul (2015) Monoclinic to cubic phase transformation in combustion synthesized gadolinium oxide. In: 4th International Conference on Materials Processing and Characterzation (ICMPC), MAR 14, 2015, Gokaraju Rangaraju Inst Engin & Technol, Hyderabad, INDIA, pp. 1276-1281.

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Abstract

Gadolinium oxide, cerium oxide, and 10 mol% gadolinia doped ceria ceramic powders have been synthesized using combustion technique. Though the cubic gadolinia phase is stable at room temperature, single phase monoclinic gadolinia was obtained as a result of combustion synthesis using fuel lean and stoichiometric precursor compositions. This powder was subjected to calcination treatment and ceria doping to study the stability of phases and the rate of phase transformation from monoclinic to cubic gadolinia. It was found that monoclinic gadolinia transforms to cubic gadolinia upon calcination at temperatures less than 1200 degrees C. It was also found that rate of phase transformation is more for powder produced using fuel lean compositions; and the rate is enhanced upon ceria doping. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type:	Conference Proceedings
Publication:	MATERIALS TODAY-PROCEEDINGS
Publisher:	ELSEVIER SCIENCE BV
Additional Information:	Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords:	Gadolinia; ceria; ceria doped gadolinia; gadolinia doped ceria; combustion synthesis
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	17 Feb 2016 07:01
Last Modified:	17 Feb 2016 07:01
URI:	http://eprints.iisc.ac.in/id/eprint/53266

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