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为了研究掺杂Y-W2411(Y2Ba4CuWOx)对单畴YBCO超导块材磁通钉扎能力的影响.应用顶部籽晶-熔融织构法(TS-MTG)制备出了掺杂纳米Y-W2411的单畴块材.通过实验发现不同量的掺杂会对样品的宏观形貌及磁悬浮力产生不同的影响.当掺杂量x≤8时,样品基本可以生长成单畴的超导块材,且样品的磁悬浮力随着Y-W2411掺杂量的增加先增大后减小.当x=2wt%时,样品磁悬浮力最大.样品的电镜扫描结果(SEM)表明成功地在Y-123(YBa2Cu3O7)基体中嵌入了Y-W2411粒子.
In order to investigate the effect of Y-B24CuWOx doped on the flux-pinning capacity of YBCO monoliths, the Y-W2411 doped Y-W2411 was prepared by top-seed-melt texture method (TS-MTG) The results show that different amounts of doping will have different effects on the macroscopic morphology and magnetic levitation force of the samples.When the doping amount is less than or equal to 8, the samples can basically grow into single-domain superconducting bulk materials, The magnetic levitation force of the sample first increases and then decreases with the increase of Y-W2411 doping amount. When x = 2wt%, the magnetic levitation force of the sample is the largest. SEM results show that the magnetic levitation force of Y- YBa2Cu3O7) matrix embedded Y-W2411 particles.