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Nanoscale characterization of the doped SrZrO3 nanoparticles distribution and its influence on the microstructure of Bi2Sr2CaCu2O8+delta film

文献类型：期刊论文

作者Zhang, Jian1,2,3; Wang, Weizhen4; Wang, Tianlin5; Jiang, Lili1,2,3; Wang, Nan1,2,3; Sun, Dalu1,2,3; Zhao, Xingming1,2,3; Wang, Mingguang1,2,3; Qi, Yang1,2,3
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2021-03-25
卷号858页码:7
关键词High-Tc ceramic Superconductors Bi-2212(SrZrO3) nanocomposite films Microstructure Defects Magnetic flux pinning centers Thermal expansion mismatch
ISSN号0925-8388
DOI10.1016/j.jallcom.2020.157650
通讯作者Wang, Mingguang(wangmg@imp.neu.edu.cn) ; Qi, Yang(qiyang@imp.neu.edu.cn)
英文摘要Due to the doping of SrZrO3 nanoparticles, the performance improvement of Bi2Sr2CaCu2O8+delta (Bi-2212) high-temperature ceramic superconducting films is significant. To comprehensively explore the reasons for the performance enhancement, in this study, the distribution of doped SrZrO3 nanoparticles and its influence on the Bi-2212 matrix microstructure were characterized at the nanoscale. A small amount of interfacial SrZrO3 nanoparticles have a semi-coherent heterointerface with the SrTiO3 substrate accompanied by a non-ideal arrangement of misfit dislocations. In some cases, the interfacial SrZrO3 lattice has a tilt of similar to 3.5 degrees off the heterointerface. For the SrZrO3 nanoparticles embedded in the film, due to the different interplanar spacing between the Bi-2212 and the SrZrO3 lattice, a large number of intergrowths were generated which triggered the subsequent yield of a high density of stacking faults and lattice distortions in the Bi-2212 matrix. Moreover, due to thermal expansion mismatch, the maximum shear stress between the SrZrO3/Bi-2212 heterointerface reached to 0.685 GPa. The intergrowth, stacking fault, lattice distortion, and shear stress are believed to be primary magnetic flux pinning centers that cause the improved performance of Bi-2212(SrZrO3) nanocomposite films. (C) 2020 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[61961116]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000614105800021
出版者ELSEVIER SCIENCE SA
资助机构National Natural Science Foundation of China
源URL[http://ir.imr.ac.cn/handle/321006/159198]  
专题金属研究所_中国科学院金属研究所
通讯作者Wang, Mingguang; Qi, Yang
作者单位1.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Shenyang 110819, Liaoning, Peoples R China
2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Liaoning, Peoples R China
3.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
5.China Med Univ, Sch Fundamental Sci, Dept Phys & Biophys, Shenyang 110122, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Jian,Wang, Weizhen,Wang, Tianlin,et al. Nanoscale characterization of the doped SrZrO3 nanoparticles distribution and its influence on the microstructure of Bi2Sr2CaCu2O8+delta film[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,858:7.
APA Zhang, Jian.,Wang, Weizhen.,Wang, Tianlin.,Jiang, Lili.,Wang, Nan.,...&Qi, Yang.(2021).Nanoscale characterization of the doped SrZrO3 nanoparticles distribution and its influence on the microstructure of Bi2Sr2CaCu2O8+delta film.JOURNAL OF ALLOYS AND COMPOUNDS,858,7.
MLA Zhang, Jian,et al."Nanoscale characterization of the doped SrZrO3 nanoparticles distribution and its influence on the microstructure of Bi2Sr2CaCu2O8+delta film".JOURNAL OF ALLOYS AND COMPOUNDS 858(2021):7.

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来源：金属研究所

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