Nucleation of Nb5+ Doped MOD-YBCO Films by 2D-XRD Technique

作者：Mao Lei; Suo Hongli^*; Liu Min; Zhang Zili; Ye Shuai; Ma Lin

来源：Rare Metal Materials and Engineering, 2014, 43(8): 1939-1943.

• 2D-XRD
• BYNO
• nucleation
• epitaxial orientation
• random orientation

Nb5+ was doped into YBCO precursor solution, and Ba2YNbO6 (BYNO) nanoparticles can be found in the YBCO film with both epitaxial and random orientations. The nucleation process of the YBCO/BYNO composite film was studied by 2D-XRD. It indicates that the low temperature decomposition of the doped film has no difference with the pure. The BYNO nucleates between 750 degrees C and 775 degrees C. In addition, epitaxial and random oriented BYNO coexist in the precursor film. The nucleation of the YBCO takes place at 820 degrees C, and all of them express (00l) orientation. The existence of the BYNO doesn't affect the YBCO's orientation. The function of the nucleation process has also been analyzed.

• 出版日期2014-8
• 单位北京工业大学