采用熔融织构生长法结合顶部Ｓｍ１２３籽晶技术，成功地制备了直径为２０ｍｍ的ＹＢＣＯ超导块材。该块材具有极强的磁性能。用Ｘ射线θ／２θ扫描和Φ扫描分析其结构表明，样品在三维方向上具有很强的择优取向，其ｃ、ａ、ｂ轴方向分别与Ｓｍ１２３籽晶的ｃ、ａ、ｂ轴方向一致，并具有类似单晶的结构特点。 YBCO superconducting block with a diameter of 20mm was successfully prepared by melt texture growth combined with top Sm123 seed. The block has a very strong magnetic properties. The results of X-ray θ / 2θ scanning and Φ-scan analysis show that the samples have a strong preferred orientation in three-dimensional directions and the c, a, b axis directions of the samples are closely related to the c, a, b axes Consistent with the structural characteristics of a single crystal.