Levitation forces and relaxation properties of a high-T superconductor in varying external magnetic fields

Jiang, Jing; Li, Yuhang; Ju, Wang; Zhao, Lifeng; Zhang, Yong; Zhao, Yong

doi:10.1016/j.physc.2019.1353582

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…Superconducting magnets have the great advantage of offering higher magnetic field intensity compared with traditional PMs; utilizing a superconducting magnet as magnetic field source can obtain much greater levitation force than PMs. Under a high background magnetic field, some new properties are obtained which could not be observed in PMs' magnetic fields [10][11][12]. To promote more profound understanding of the interaction mechanisms between HTSs and high external magnetic fields, a levitation force measurement system composed of a 6T NbTi conduction-cooled superconducting magnet has been built in our laboratory.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Analysis and Testing of Conduction-Cooled Superconducting Magnet for Levitation Force Measurement Application

et al. 2023

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High-temperature superconductors have great potential for various engineering applications such as a flywheel energy storage system. The levitation force of bulk YBCO superconductors can be drastically increased by increasing the strength of the external field. Therefore, a 6T conduction-cooled superconducting magnet has been developed for levitation force measurement application. Firstly, to protect the magnet from mechanical damage, reliable stress analysis inside the coil is paramount before the magnet is built and tested. Therefore, a 1/4 two-dimensional (2D) axisymmetric model of the magnet was established, and the mechanical stress in the whole process of winding, cooling down and energizing of the magnet was calculated. Then, the charging, discharging, and preliminary levitation force performance tests were performed to validate the operating stability of the magnet. According to the simulation results, the peak stresses of all coil models are within the allowable value and the winding maintains excellent mechanical stability in the superconducting magnet. The test results show that the superconducting magnet can be charged to its desired current of 150 A without quenching and maintain stable operation during the charging and discharging process. What is more, the superconducting magnet can meet the requirements for the levitation force measurement of both low magnetic field and high magnetic field.

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Section: Introductionmentioning

confidence: 99%

Mechanical Analysis and Testing of Conduction-Cooled Superconducting Magnet for Levitation Force Measurement Application

et al. 2023

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“…Различные эффекты, такие как рост критического тока с увеличением магнитного поля, что проявляется в уширении петли перемагничивания образца [2], практически полностью определяются структурой и динамикой вихревой решетки. Сверхпроводящие образцы, а также кабели и ленты на основе ВТСП используются в сверхпроводящих магнитах [3], ограничителях тока [4,5] и в левитационной технологии [6][7][8]. В последнем случае используется магнитолевитационная система сверхпроводник -постоянный магнит, в которой сверхпроводник находится в градиентном поле постоянного магнита.…”

Section: Introductionunclassified

Вихревая Структура ВТСП В Неоднородном Магнитном Поле

Максимова¹,

Кашурников²,

Мороз³

et al. 2021

Физика Твердого Тела

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Численно исследовано проникновение магнитного потока в слоистый анизотропный сверхпроводник, помещенный в градиентное магнитное поле, эквивалентное полю постоянного магнита. Рассчитаны вихревые конфигурации, возникающие как в бездефектном сверхпроводнике, так сверхпроводнике, содержащем дефекты. Показано, что проникновение неоднородного магнитного поля в слоистый сверхпроводник происходит через формирование неполных вихревых нитей на границе, что означает появление параллельной слоям компоненты магнитного поля. Рассчитаны зависимости намагниченности и энергии в магнитном поле для трехмерного образца ВТСП, показано существование минимумов на графике энергии, соответствующих устойчивым положениям магнита относительно сверхпроводника. Ключевые слова: ВТСП, вихри Абрикосова, метод Монте-Карло, магнитная левитация.

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Magnetoresistance and its relaxation of nanostructured La-Sr-Mn-Co-O films: Application for low temperature magnetic sensors

Žurauskienė

Rudokas

Kersulis

et al. 2021

Journal of Magnetism and Magnetic Materials

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Levitation forces and relaxation properties of a high-T superconductor in varying external magnetic fields

Cited by 5 publications

References 19 publications

Mechanical Analysis and Testing of Conduction-Cooled Superconducting Magnet for Levitation Force Measurement Application

Mechanical Analysis and Testing of Conduction-Cooled Superconducting Magnet for Levitation Force Measurement Application

Вихревая Структура ВТСП В Неоднородном Магнитном Поле

Magnetoresistance and its relaxation of nanostructured La-Sr-Mn-Co-O films: Application for low temperature magnetic sensors

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