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Synthesis and Structural Characterization of BaTiO_3 Doped with Gd~(3+)

机译：用Gd掺杂BatiO_3的合成和结构表征〜（3+）

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摘要

BaTiO_3 doped with Gd~(3+), was synthesized from BaCO_3, TiO_2, and Gd_2O_3 as powders using the solid state reaction method (Ba_(1-x)Gd_xTi_(1-x/4)O_3). The milling of the precursors was performed in an agate mortar with acetone as control means and compositions x = 0.001, 0.005, 0.05, 0.15, 0.25, 0.35 Gd~(3+) (wt%). Firstly, the powder mixture was decarbonated at 900°C for 8 h, after it was sintered at 1400°C for 5 h. Tetragonality of synthesized BaTiO_3 doped with Gd~(3+) was analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman spectroscopy (RS). Subsequently, the powders sintered were uniaxially compacted cold until to obtain pellets of about 10 mm in diameter; which again were sintered at 1400°C for 4 h. XRD patterns and Raman spectra results revealed that the crystal phase of the obtained particles was predominately tetragonal BaTiO_3.
机译：使用固态反应方法（BA_（1-x）GD_XTI_（1-X / 4）O_3），由BACO_3，TIO_2和GD_2O_3掺杂有GD〜（3+）的BATIO_3作为粉末合成为粉末。在炔砂砂浆中进行前体的研磨，用丙酮作为控制装置，组合物x = 0.001,0.005,0.05,0.15,0.25,0.35gd〜（3+）（wt％）。首先，将粉末混合物在900℃下脱碳8小时，在1400℃下烧结5小时后。通过X射线衍射（XRD），扫描电子显微镜（SEM）和拉曼光谱（RS）分析用Gd〜（3+）掺杂有Gd〜（3+）的合成BATIO_3的四面态。随后，烧结烧结的粉末是单轴压实的冷，直至获得直径约10mm的颗粒;再次在1400℃下烧结4小时。 XRD图案和拉曼光谱结果显示所得颗粒的晶相主要是四边形BATIO_3。

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