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首页> 外文期刊>Integrated Ferroelectrics >Properties of (1-x)NaCu3Ti3NbO12-(x)BaTiO3 ceramics with various sintering temperatures prepared by conventional solid-state reaction method
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Properties of (1-x)NaCu3Ti3NbO12-(x)BaTiO3 ceramics with various sintering temperatures prepared by conventional solid-state reaction method

机译：（1-x）NaCu3Ti3NBO12-（X）BATIO3陶瓷具有通过常规固态反应方法制备的各种烧结温度的BATIO3陶瓷

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摘要

In the research, the properties of sodium copper titanate niobate - barium titanate [(1-x)NaCu3Ti3NbO12-(x)BaTiO3: (1-x)NCTNO-(x)BT] ceramics prepared by conventional solid-state reaction method with various molecular weight of BT or x between 0.1, 0.3 and 0.5 were investigated. These ceramics were sintered at 975, 1000, 1025 and 1050 C-o for 10h in ambient atmosphere. The phase structure, microstructure, density, micro-hardness and dielectric properties were examined by x-ray diffraction technique (XRD), scanning electron microscopy (SEM), Archimedes method, Vickers micro-hardness tester and impedance analyzer, respectively. It was found that, the addition of BaTiO3 resulted in the formation of second phase which increased upon increasing the BaTiO3 content. Compared to the base composition, the grain sizes of all the (1-x)NCTNO-(x)BT were significantly reduced. The densities of (1-x)NCTNO-(x)BT ceramics and dielectric properties were improved with the addition of BaTiO3. For the effect of sintering temperatures, no substantial change in the crystal structure and grain growth was found whereas an increase in densities and hardness with increasing temperatures were observed. The (0.7)NCTNO-(0.3)BT ceramics sintered at 1025 C-o showed the highest density and dielectric constant (approximate to 80500) at room temperature with 1kHz measurement.
机译：在研究中，钛酸钠铌酸钠 - 钛酸钡的性质[（1-x）NaCu3Ti3nbo12-（x）BatiO3：（1-x）NctNo-（x）Bt]通过常规固态反应方法制备各种陶瓷研究了Bt或x的分子量0.1,0.3和0.5。将这些陶瓷在975,1000,1025和1050c-O中烧结10小时，在环境气氛中。通过X射线衍射技术（XRD），扫描电子显微镜（SEM），Archimedes方法，维氏微型硬度测试仪和阻抗分析仪检查相结构，微观结构，密度，微硬度和电介质性能。结果发现，在增加BATIO3含量时，添加BATIO3导致第二阶段的形成。与基础组成相比，所有（1-x）NctNo-（x）Bt的晶粒尺寸显着降低。添加BATIO3，改善了（1-X）NCTNO-（X）BT陶瓷和介电性能的密度。为了烧结温度的影响，发现晶体结构和晶粒生长的实质性变化，而观察到温度升高的密度和硬度的增加。在1025C-O时烧结（0.7）NCTNO-（0.3）BT陶瓷在室温下烧结在室温下最高密度和介电常数（近似为80500），1kHz测量。

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