Effect of Post-annealing in Ar on Performance of LRE-Ba-Cu-O Single-grain Superconductors
Source abstract
Abstract
采用顶部热籽晶技术和“二步冷却”生长工艺,在空气中制备了Gd-Ba-Cu-O、（SmGd）-Ba-Cu-O和（SmEuGd）-Ba-Cu-O三种体系的单畴熔融织构样品,并研究了Ar气氛退火（ArPA）对所制备的单畴样品超导性能的影响.结果表明,三种体系的单畴样品77K下的俘获场分布均呈中心对称的圆锥形,其中SEG样品的冻结场达到0.34T（Ф18mm）,与OCMG工艺制备的相同尺寸的样品处在同一水平.Ar气氛退火对三种体系单畴样品超导性能的影响不同：对Gd-Ba-Cu-O体系,ArPA不能进一步提高单畴样品的临界电流密度;而对（SmGd）-Ba-Cu-O和（SmEuGd）-Ba-Cu-O体系,合适温度下的ArPA可以大幅度提高样品的超导性能.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Physics of Superconductivity and Magnetism · Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
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