采用顶部籽晶粉末熔化法(TSPMP)制备了30mm×15mm的YBCO单畴样品.在77K、零场冷却条件下获得最大磁悬浮力值43N(NdFeB,0.5T).在2T的静态磁场中场冷充磁后,77K下获得最大的捕获磁通为380mT.金相分析显示211粒子的粒度分布在1~3μm,ac面上的211粒子的分布密度>ab面上的分布密度.从磁通钉扎角度分析了211的粒度对磁悬浮力和捕获磁通的影响.
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