NDLI: The evolution of properties and microstructure of Bi-2212 wires after gamma-ray irradiation

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The evolution of properties and microstructure of Bi-2212 wires after gamma-ray irradiation

Content Provider	Scilit
Author	Zhang, Zhen-Chuang Zhou, Hai-Shan Qin, Jing-Gang Yang, Dong-Sheng Luo, Guang-Nan
Copyright Year	2021
Description	Journal: Superconductor Science and Technology Among various high-temperature superconducting materials, $Bi_{2}Sr_{2}CaCu_{2}$O8+x (Bi-2212) is considered as one of the most promising candidates to fabricate superconductors for magnetic confinement fusion reactors. Considering that the superconductors will be subject to irradiation in nuclear reactors, the effects of gamma-ray irradiation on the superconducting properties of Bi-2212 wires is studied in the present work. Critical current (I$ _{c}$) tests have been done for Bi-2212 wires with different gamma-ray irradiation doses and the variation of I$ _{c}$ is correlated to the change of microstructures. During the 12 T I$ _{c}$ tests, the normalized I$ _{c}$ first rises to 1.15 then decreases to 0.89 with the increase of irradiation time. Results from x-ray diffraction, Raman spectroscopy and x-ray photoelectron spectroscopy indicate that defects are produced within the gamma-ray irradiated samples. From the images of high resolution transmission electron microscopy, amorphous structure in the gamma-ray irradiated sample is discovered as well.
Related Links	https://iopscience.iop.org/article/10.1088/1361-6668/abdedc/pdf
ISSN	09532048
e-ISSN	13616668
DOI	10.1088/1361-6668/abdedc
Journal	Superconductor Science and Technology
Issue Number	4
Volume Number	34
Language	English
Publisher	IOP Publishing
Publisher Date	2021-03-01
Access Restriction	Open
Subject Keyword	Journal: Superconductor Science and Technology Nuclear Energy and Engineering Raman Spectroscopy Gamma Ray Irradiation
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Metals and Alloys Condensed Matter Physics Electrical and Electronic Engineering

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