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首页> 外文期刊>Physica, C. Superconductivity and its applications >Fabrication of NdCeCuO and effects of binding agents on the growth, micro-structural and electrical properties
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Fabrication of NdCeCuO and effects of binding agents on the growth, micro-structural and electrical properties

机译:NdCeCuO的制备及粘结剂对生长,微结构和电性能的影响

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摘要

NdCeCuO superconducting samples were fabricated using ethyl alcohol, acetone and ethylenediaminetetraacetic acid (EDTA) as binding agents. For evaporation of binding agents, the samples were heat treated at 1050 °C for 24 h and then at 950 °C for 6-48 h under argon atmosphere to obtain the superconducting phase. The best superconducting performance was found in the sample heat treated at 1050 °C for 24 h and then 950 °C for 12 h which was fabricated by using acetone as binding agent. The T_c and T_0 value was found to be ~25 K and 23.4 K, respectively. Grain size in the samples fabricated was calculated using Scherer equation and SEM data. It was found that grain size strongly depends on the binding agents and heat treatment conditions. Some cracks and voids on the surface of the samples were observed, which influences the superconducting and electrical transport properties of the samples.
机译:NdCeCuO超导样品是使用乙醇,丙酮和乙二胺四乙酸(EDTA)作为粘合剂制备的。为了蒸发粘合剂,将样品在氩气氛下于1050°C热处理24 h,然后在950°C热处理6-48 h,以获得超导相。在以丙酮为黏合剂制成的1050°C热处理24 h,然后在950°C热处理12 h的样品中,发现最佳的超导性能。发现T_c和T_0值分别为〜25 K和23.4K。使用Scherer方程和SEM数据计算制造的样品中的晶粒尺寸。已经发现晶粒尺寸强烈地取决于粘合剂和热处理条件。观察到样品表面上的一些裂缝和空隙,这影响了样品的超导和电传输性能。

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