Chakraborty, A and Sujatha Devi, P and Roy, S and Maiti, Himadri Sekhar (1994) Low-temperature synthesis of ultrafine La0.84Sr0.16MnO3 powder by an autoignition process. Journal of Materials Research, 9 (4). pp. 986-991. ISSN 0884-2914

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Abstract

A simple and convenient method for low-temperature synthesis of La0.84Sr0.16MnO3 powder is described. The technique involves autoignition of a carboxylate (citrate + acetate)-nitrate gel resulting from a thermally induced anionic oxidation-reduction reaction to yield an ash, which upon calcination produces the desired powder. The resulting powder is pure, homogeneous, and possesses ultrafine particle size of the order of 0.3 to 0.5 mum. The autoignition is restricted to a particular range of carboxylate to nitrate ratio in the gel. Attempts have been made to understand the ignition process with the help of Thermogravimetry (TG) and Differential Thermal Analysis (DTA) of the samples. The process appears to have a higher degree of reproducibility and a good material yield (more than 96%) suitable for large-scale production.

Item Type:	Article
Subjects:	Electronics
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	07 Aug 2013 07:07
Last Modified:	20 Mar 2016 16:17
URI:	http://cgcri.csircentral.net/id/eprint/1956

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