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Volume 25 Issue 4 August 2002 pp 263-266 Synthesis
Self-propagating high temperature synthesis and magnetic properties of Ni0.35Zn0.65Fe2O4 powders
Yao Li Jiupeng Zhao Jiecai Han
Ni–Zn ferrite powders were synthesized by self-propagating high temperature synthesis (SHS) method. X-ray diffraction, TEM and vibrating sample magnetometry (VSM) were used to characterize the phase composition, microstructure and magnetic properties of the combustion products. The effect of the combustion temperature ($T_c$), the major parameter of the SHS process, on particle size, phase composition and magnetic properties of the products was also studied. The results showed that particle size grew with the increasing combustion temperature. The maximum saturation magnetization, $M_s$, increased with combustion temperature indicating the growth of grain size and high degree of ferritization, while residual magnetization, $M_r$, and coercive force, $H_c$, decreased. Compared with other methods, Ni0.35Zn0.65Fe2O4 ferrite powders with improved magnetic properties can be obtained by SHS at 1000°C.
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Bulletin of Materials Science
Volume 46, 2023
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Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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