为了实现YBa2Cu3O7-x (YBCO)涂层导体在电力工业中的实际应用,必须有效增加YBCO超导层的厚度.提出一个强磁场辅助TFA-MOD法制备YBCO厚膜的新工艺,并从磁热力学和磁性物理出发理论分析其可行性.沿垂直基底平面方向施加强磁场时,磁场将促进c轴取向YBCO晶核的形成,诱导厚膜中非c轴取向晶核转动到c轴平行磁场取向的位置.另外,取向晶粒间磁性相互作用力使晶粒沿磁场方向定向聚合,有利于获得致密的厚膜.因此,强磁场辅助TFA-MOD法有望制备高临界电流密度的YBCO织构厚膜.
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