<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>In this study, the Taguchi robust design method is used for optimizing ball milling parameters including milling time, rotation speed and ball to powder weight ratio in the planetary ball milling of nanostructured nickel ferrite powder. In fact, the current work deals with NiFe2O4 nanoparticles mechanochemically synthesized from NiO and Fe2O3 powders. The Taguchi robust design technique of system optimization with the L9 orthogonal array is performed to verify the best experimental levels and contribution percentages (% ρ) of each parameter. Particle size measurement using SEM gives the average particle size value in the range of 59–67 nm. X-ray diffraction using Cu Kα radiation is also carried out to identify the formation of NiFe2O4 single phase. The XRD results suggest that NiFe2O4 with a crystallite size of about 12 nm is present in 30 h activated specimens. Furthermore, based on the results of the Taguchi approach the greatest effect on particle size (42.10 %) is found to be due to rotation speed followed by milling time (37.08 %) while ball to powder weight ratio exhibits the least influence.</p></abstract>

In this study, the Taguchi robust design method is used for optimizing ball milling parameters including milling time, rotation speed and ball to powder weight ratio in the planetary ball milling of nanostructured nickel ferrite powder. In fact, the current work deals with NiFe2O4 nanoparticles mechanochemically synthesized from NiO and Fe2O3 powders. The Taguchi robust design technique of system optimization with the L9 orthogonal array is performed to verify the best experimental levels and contribution percentages (% ρ) of each parameter. Particle size measurement using SEM gives the average particle size value in the range of 59–67 nm. X-ray diffraction using Cu Kα radiation is also carried out to identify the formation of NiFe2O4 single phase. The XRD results suggest that NiFe2O4 with a crystallite size of about 12 nm is present in 30 h activated specimens. Furthermore, based on the results of the Taguchi approach the greatest effect on particle size (42.10 %) is found to be due to rotation speed followed by milling time (37.08 %) while ball to powder weight ratio exhibits the least influence.

Parametric optimization of NiFe2O4 nanoparticles synthesized by mechanical alloying

Material Synthesis and Characterization Laboratory, Institute of Advanced Nano Technology (ITMA), Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

Materials Engineering Department, Islamic Azad University, Najafabad Branch, Isfahan, Iran

Physics Department, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this study, the Taguchi robust design method is used for optimizing ball milling parameters including milling time, rotation speed and ball to powder weight...

Parametric optimization of NiFe2O4 nanoparticles synthesized by mechanical alloying

Publié en ligne: 22 juil. 2014

Pages: 281 - 291

DOI: https://doi.org/10.2478/s13536-013-0173-x

Mots clés
magnetic materials, microstructure, X-ray diffraction, crystal structure

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parametric optimization of NiFe2O4 nanoparticles synthesized by mechanical alloying

Publié en ligne: 22 juil. 2014

Pages: 281 - 291

DOI: https://doi.org/10.2478/s13536-013-0173-x

Mots clésmagnetic materials, microstructure, X-ray diffraction, crystal structure

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
magnetic materials, microstructure, X-ray diffraction, crystal structure