Article ID Journal Published Year Pages File Type
1477861 Journal of the European Ceramic Society 2007 5 Pages PDF
Abstract

NiFe2O4 powders were synthesized by co-precipitation with ammonia solution using aqueous solution of NiCl2 and FeCl3 followed by hydrothermal treatment of the precipitate. It was found that crystallization in water led to nanometric in size and isometric in shape crystallites, whereas crystallization in sodium hydroxide solution results in particles of well defined walls. Generally, particles crystallized in water were smaller and their particle size distribution was narrower than those crystallized in NaOH solution. Behaviour of the powders under dry compaction and sintering strongly depended on the powder morphology. The powder crystallized in NaOH solution gave compacts of higher density and sintered density of this powder was also higher than that of the powder processed in water.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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