Study on the superconducting connectivity of YBCO platelike powders synthesized by a biomimetic method and the effect of oxygen annealing on the superconducting connectivity - 文章详情页

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A　new　method　of　synthesizing　the　high　temperature　superconducting　ceramic　YBa2Cu3O7　with　high　aspect　ratio　platelike　grains　was　studied　and　the　superconducting　connectivity　between　the　grains　by　using　Bean　model　was　also　investigated.　The　results　indicate　that　there　is　a　naturally　arising　superconducting　connectivity　between　adjacent　platelike　grains.　This　connectivity　exists　within　clusters　of　platelike　grains　with　similar　growth　orientation,　typically　extending　across　3-5　grains　at　77　K.　The　effects　of　the　oxygen　annealing　temperature　and　duration　on　the　extent　of　the　connectivity　were　also　studied　sysmetically.

关键词：

Yttrium barium copper oxides Ceramic superconductors High temperature superconductors Superconductivity Aspect ratio Biomimetic processes Oxygen

作者机构：

[ 1 ] [Zhang, Zi-Li]Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Zhang, Zi-Li]Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3QZ, United Kingdom
[ 3 ] [Suo, Hong-Li]Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wimbush, Stuart]Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3QZ, United Kingdom
[ 5 ] [Kursumovic, Ahmed]Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3QZ, United Kingdom
[ 6 ] [Mao, Lei]Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 7 ] [MacManus-Driscoll, Judith]Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3QZ, United Kingdom

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honglisuo@bjut.edu.cn

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