Захват магнитного поля постоянными магнитами на основе лент высокотемпературного сверхпроводника

Аннотация

Создание систем твердотельного охлаждения при криогенных температурах требует разработки источников магнитного поля, способных длительное время удерживать сильные магнитные поля без существенных энергетических затрат. Высокотемпературные сверхпроводники (ВТСП) семейства Y-Ba-Cu-O в виде объемной керамики и лент пленочных композитов обладают необходимыми свойствами для создания постоянных сверхпроводящих магнитов (ПСМ), захватывающих и длительное время сохраняющих постоянное магнитное поле при температурах 90 К и ниже. В настоящей работе представлены результаты исследования процесса захвата и удержания магнитных полей в ПСМ на основе лент ВТСП в зазоре между двумя стопками отрезков лент. Эксперименты проводились при температурах от 3 до 100 К, в магнитном поле до 10 Тл.

• постоянные магниты
• высокотемпературные сверхпроводники
• магнитокалорический эффект
• магнитное твердотельное охлаждение при криогенных температурах
• захват магнитного потока

Abstract (in English)

Capture of magnetic field by permanent magnets based on high temperature superconductor tapes

The creation of solid-state refrigerating systems at cryogenic temperatures requires the development of magnetic field sources capable of holding strong magnetic fields for a long time without significant energy costs. High-temperature superconductors (HTS) The Y-Ba-Cu-O families in the form of bulk ceramics and tapes of film composites have the necessary properties to create permanent superconducting magnets (PSM) that capture and maintain a constant magnetic field for a long time at temperatures of 90 K and below. This paper presents the results of a comparative study of the process of capturing and retaining magnetic fields in the PSM of HTSP tape elements of two configurations: in the gap between two stacks of tape segments and in a cylindrical hole in a stack of tape segments. The experiments were carried out at temperatures from 3 to 90 K, in a magnetic field up to 10 T.

Для цитирования

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