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首页> 外文期刊>Journal of Applied Physics >Simulation study for magnetic levitation in pure water exploiting the ultra-high magnetic field gradient product of a hybrid trapped field magnet lens (HTFML)
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Simulation study for magnetic levitation in pure water exploiting the ultra-high magnetic field gradient product of a hybrid trapped field magnet lens (HTFML)

机译：纯水磁悬浮仿真研究利用混合捕获场磁镜（HTFML）的超高磁场梯度产品

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摘要

A hybrid trapped field magnet lens (HTFML) is a promising device that is able to concentrate a magnetic field higher than the applied field continuously, even after removing an external field, which was conceptually proposed by the authors in 2018. In this study, we propose a new additional advantage of the HTFML, which could be applicable for magnetic levitation and separation. The HTFML device consisting of a GdBaCuO bulk cylinder and a GdBaCuO magnetic lens, after the magnetization process from an applied field, B_(app) = 10 T, can generate a maximum trapped field, B_c= 11.4 T, as well as an ultra-high magnetic field gradient product, B_z·dB_z/dz, over ±3000 T~2/m at T_s = 20 K, which is higher than that of existing superconducting magnets and large-scale hybrid magnets. Through detailed numerical simulations, the HTFML device is considered for the magnetic separation of a mixture of precious metal particles (Pt, Au, Ag, and Cu) dispersed in pure water, by exploiting the magneto-Archimedes effect. The HTFML can be realized as a compact and mobile desktop-type superconducting bulk magnet system, and there are a wide range of potential industrial applications, such as in the food and medical industries.
机译：混合捕获的现场磁镜（HTFML）是能够集中于2018年作者概念性提出的外部领域之后连续地集中于施加的场的磁场高于所施加的场的磁场。在这项研究中，我们提出了HTFML的新额外优势，可适用于磁悬浮和分离。由GDBACUO散装缸和GDBACUO磁性透镜组成的HTFML装置，从施加的场，B_（APP）= 10t，可以产生最大被困的字段，B_C = 11.4 T，以及超 - 高磁场梯度产品，B_Z·DB_​​Z / DZ，T_S = 20 ks的超过±3000t〜2 / m，其高于现有超导磁体和大型混合磁铁的= 20 k。通过详细的数值模拟，通过利用磁性拱状效应，考虑了HTFML装置的磁性分离分散在纯水中的贵金属颗粒（Pt，Au，Ag和Cu）的混合物。 HTFML可以实现为紧凑且移动台式机型超导散装磁铁系统，并且有广泛的潜在工业应用，例如食品和医疗行业。

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  • 来源
    《Journal of Applied Physics》 |2020年第18期|185106.1-185106.11|共11页
  • 作者

    K. Takahashi; H. Fujishiro; M. D. Ainslie;

  • 作者单位

    Department of Physical Science and Materials Engineering Faculty of Science and Engineering Iwate University Morioka 020-8551 Japan;

    Department of Physical Science and Materials Engineering Faculty of Science and Engineering Iwate University Morioka 020-8551 Japan;

    Bulk Superconductivity Group Department of Engineering University of Cambridge Cambridge CB2 1PZ United Kingdom;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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