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A Novel Low‐Temperature Synthesis of Nanosized NiZn Ferrite
Author(s) -
Verma Seema,
Pradhan S. D.,
Pasricha Renu,
Sainkar S. R.,
Joy P. A.
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00445.x
Subject(s) - citric acid , thermal decomposition , ferrite (magnet) , materials science , porosity , microstructure , chemical engineering , combustion , particle size , autocatalysis , composite number , transmission electron microscopy , composite material , nanotechnology , chemistry , catalysis , organic chemistry , engineering
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.