Abstract

Nickel-zinc ferrite nanopowders Ni_0.4Zn_0.6Fe₂O₄ were prepared by glycine (G)–nitrate (N) solution-combustion synthesis and the influence of G/N ratio on their chemical composition, morphology, structure, crystallite size, and magnetic behavior was characterized by XRD, EDX, SEM, FTIR spectroscopy, and vibration magnetometry. According to XRD data, the formation of Ni–Zn ferrite gets started at G/N = 0.4. The observed influence of G/N ratio on the structural and magnetic parameters of Ni–Zn ferrites opens up a route to producing powders with crystallite size D in the range 24.6–47.1 nm, extent of conversion α up to 94%, coercive force H_c from 7.88 to71.78 Oe, remanence magnetization M_r from 2.42 to 31.81 emu/g, and saturation magnetization M_s from 51.06 to 90.66 emu/g. The maximum values of magnetic characteristics were reached at a stoichiometric ratio of glycine to nitrogen in nitrates (G/N = 0.6).

中文翻译：

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溶液燃烧合成Ni 0.4 Zn 0.6 Fe 2 O 4纳米粉：Red / Ox比对其形态，结构和磁性的影响

摘要

通过甘氨酸（G）-硝酸盐（N）溶液燃烧合成法制备了镍锌铁氧体纳米粉体Ni _0.4 Zn _0.6 Fe ₂ O ₄，研究了G / N比对其化学组成，形貌，结构，微晶尺寸和结构的影响。通过XRD，EDX，SEM，FTIR光谱和振动磁强分析法表征了磁行为。根据XRD数据，在G / N = 0.4时开始形成Ni-Zn铁氧体。观察到的G / N比对Ni-Zn铁氧体结构和磁性参数的影响，开辟了一条生产微晶尺寸D在24.6-47.1 nm范围内，转化率α高达94％，矫顽力H的粉末的途径。_C从7.88至71.78 Oe，剩磁M _r从2.42至31.81 emu / g，饱和磁化M _s从51.06至90.66 emu / g。在硝酸盐中甘氨酸与氮的化学计量比（G / N = 0.6）时，达到了磁性的最大值。