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首页> 外文期刊>Materials Letters >Effect of powder preparation on (CeO_2)_(0.8)(Sm_2O_3)_(0.1) thin film properties by screen-printing
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Effect of powder preparation on (CeO_2)_(0.8)(Sm_2O_3)_(0.1) thin film properties by screen-printing

机译：粉末制备对丝网印刷（CeO_2）_（0.8）（Sm_2O_3）_（0.1）薄膜性能的影响

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摘要

Chemical co-precipitation process and glycine-nitrate process (GNP) were used to synthesize (CeO_2)_(0.8)(Sm_2O_3)_(0.1) (SDC) powders for the preparation of thin dense film by screen-printing. XRD, transmission electron microscope (TEM), scanning electron microscope (SEM) and the AC impedance spectroscopy were used to investigate the phase identification, morphology and electrical properties of SDC powders, respectively. It was found that the powders prepared by both processes possessed similar sinterability and conductivity. To both synthesized powders, the SDC pellets sintered at 1350 deg C can reach 96 percent in relative density and 0.08 S cm~(-1) in conductivity at 800 deg C in air. Thin electrolyte films about 30 mu m have been successfully achieved by screen-printing with both powders. While the thin electrolyte film by GNP powders possessed better sinterability and higher conductivity, which was attributed to its high pack density during the green film preparation.
机译：采用化学共沉淀法和硝酸甘氨酸法（GNP）合成（CeO_2）_（0.8）（Sm_2O_3）_（0.1）（SDC）粉末，通过丝网印刷法制备致密薄膜。用XRD，透射电子显微镜（TEM），扫描电子显微镜（SEM）和交流阻抗谱分别研究了SDC粉末的相识别，形貌和电性能。发现通过两种方法制备的粉末具有相似的烧结性和导电性。对于两种合成粉末，在1350℃下烧结的SDC颗粒在空气中在800℃下的相对密度可达到96％，电导率可达到0.08 S cm〜（-1）。通过丝网印刷两种粉末成功地获得了约30微米的电解质薄膜。尽管由GNP粉末制成的电解质薄膜具有更好的可烧结性和更高的导电性，这归因于其在生膜制备过程中的高堆积密度。

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