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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 >Comparison of levitation force relative to thickness of disk shaped YBa_2Cu_3O_(7-x) prepared by MPMG and FQMG processes
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Comparison of levitation force relative to thickness of disk shaped YBa_2Cu_3O_(7-x) prepared by MPMG and FQMG processes

机译：MPMG和FQMG工艺制备的相对于圆盘状YBa_2Cu_3O_（7-x）厚度的悬浮力的比较

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摘要

The precursor YBCO in the stoichiometric ratio of 1:2:3 were fabricated using the melt-powder-melt-growth (MPMG) technique, and flame-quench-melt-growth (FQMG) technique. The superconducting regions were determined by calculating the levitation force per unit volume as a function of samples' thickness. Our findings indicate that superconductivity forming ratio is sensitive to the preparation techniques and it grows on the surfaces of the samples prepared by FQMG process while it grows in the middle of the samples fabricated by MPMG technique. It was determined that the MPMG process produces more the superconductivity forming ratio than the FQMG method, which is due to platinum impurities. Our results were also checked by polarized optical microscope and XRD pattern.
机译：化学计量比为1：2：3的前驱体YBCO是使用熔体粉末熔体生长（MPMG）技术和火焰猝灭熔体生长（FQMG）技术制造的。通过计算每单位体积的悬浮力作为样品厚度的函数来确定超导区域。我们的发现表明，超导形成比对制备技术敏感，并且在通过FQMG工艺制备的样品表面上生长，而在通过MPMG技术制备的样品中间生长。已确定，由于铂杂质，MPMG工艺比FQMG方法产生的超导形成率更高。我们的结果也通过偏振光学显微镜和XRD图检查。

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