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RESEARCH PRODUCT

Characteristics of Sintered Materials Obtained from Ferrite Nanopowders Synthesised with Different Methods

Ilmārs ZālīteGundega HeidemaneMikhail MaiorovJānis GrabisDzintra ĀRija RašmaneAija Krumina

subject

010302 applied physicsMaterials scienceMechanics of MaterialsMechanical Engineering0103 physical sciencesMetallurgyFerrite (magnet)General Materials Science02 engineering and technology021001 nanoscience & nanotechnology0210 nano-technology01 natural sciences

description

Ferrite materials, especially those containing nickel and cobalt, are popular due to their unique mechanical and magnetic properties. Single phase NiFe2O4 and CoFe2O4 nanopowders obtained by different methods were used for sintering studies. Chemical sol-gel self-propagating combustion method, co-precipitation technology combined with hydrothermal synthesis or spray-drying method, and high frequency plasma chemical synthesis have been used to synthesize ferrite nanopowders. Relatively dense (95-99%) materials with high saturation magnetization (MS = 80-84 emu/g for CoFe2O4 and MS = 46-48 emu/g for NiFe2O4) were obtained at 1100-1200 °C temperatures.

https://doi.org/10.4028/www.scientific.net/kem.762.257