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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effect of zinc substitution on structural and elastic properties of cobalt ferrite
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Effect of zinc substitution on structural and elastic properties of cobalt ferrite

机译：锌替代对钴铁氧体结构和弹性性能的影响

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摘要

Polycrystalline ferrites with general formula Co_(1-x)Zn_xFe_2O_4 (x = 0,0.2,0.4,0.6,0.8, and 1.0) were prepared by solid-state reaction technique. The structure and morphology of obtained products were investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. The analysis of XRD pattern revealed the formation of single-phase cubic spinel structure. Lattice constant increases with increase in zinc content, obeying Vegard's law. Elastic properties such as longitudinal velocity (V_l), transverse velocities (V_t), Poisson's ratio (sigma) and Debye temperature (theta_D) have been studied. In the present work the elastic properties decreases with zinc composition x whereas Poisson's ratios almost remain constant. Debye temperature calculated from elastic data decreases with Zn substitution. A probable explanation has been proposed to explain the effect of zinc substitution on structural and elastic properties of cobalt ferrite.
机译：通过固相反应技术制备了通式为Co_（1-x）Zn_xFe_2O_4（x = 0,0.2,0.4,0.6,0.8，和1.0）的多晶铁氧体。通过X射线衍射（XRD）和扫描电子显微镜（SEM）技术研究了所得产物的结构和形态。 XRD图谱的分析揭示了单相立方尖晶石结构的形成。晶格常数随锌含量的增加而增加，遵守维加德定律。研究了诸如纵向速度（V_1），横向速度（V_t），泊松比（sigma）和德拜温度（theta_D）之类的弹性特性。在目前的工作中，弹性性能随锌组成x的增加而降低，而泊松比几乎保持恒定。根据弹性数据计算的德拜温度随Zn的取代而降低。已经提出了可能的解释来解释锌取代对钴铁氧体结构和弹性性能的影响。

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