研究了BaF2添加对高温超导氧化物YBCO先驱粉末的热力学行为及对织构组织和超导性能的影响.DTA分析结果表明,添加BaF2使YBC0先驱粉末升温过程中的包晶分解温度有所降低,同时使YBCO的包晶反应温度降低,对织构生长的温度区间影响不是很明显.SEM测量发现,YBCO的显微组织结构基小不变,说明BaF2的添加没有显著影响YBCO的织构生长和Y211在基体中的分布.磁化率测量表明,当BaF2含量小于10%(质量分数)时超导转变温度略有降低.
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