A Novel Low-Temperature Synthesis of Nanosized NiZn Ferrite

Autor:	Surajyoti Pradhan, Sudhakar R. Sainkar, P. A. Joy, Seema Verma, Renu Pasricha
Rok vydání:	2005
Předmět:	Materials science Inorganic chemistry Composite number Thermal decomposition Microstructure Thermogravimetry chemistry.chemical_compound chemistry Materials Chemistry Ceramics and Composites Ferrite (magnet) Particle size Porosity Citric acid
Zdroj:	Journal of the American Ceramic Society. 88:2597-2599
ISSN:	1551-2916 0002-7820
DOI:	10.1111/j.1551-2916.2005.00445.x
Popis:	Nanosized NiZn ferrite powder is synthesized by a low-temperature method, using a unique combination of citric acid and glycine. An appropriate molar ratio of both citric acid and glycine offers a low-temperature synthetic route by incorporating the complexation behavior of citric acid and the combustion nature of glycine. Thermal decomposition/controlled autocatalytic combustion of the composite gel occurs at a low temperature of around 175°C, with the evolution of a large amount of gases. Transmission electron microscopic studies showed that the average particle size of the ferrite obtained is ∼2.5 nm, with a narrow size distribution. Uniformly distributed fine-grained microstructure with low porosity is obtained for a sample sintered at 1000°C.
Databáze:	OpenAIRE
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