Соединение ВТСП-материалов: выбор припоев и флюсов (обзор)

Приведен обзор составов припоев и флюсов, которые могут быть использованы для соединения ленточных проводов на основе высокотемпературных сверхпроводников (ВТСП). Рассмотрены фазовые диаграммы наиболее часто используемых припоев, как содержащих свинец, так и бессвинцовых. Отмечены основные методы нанесения припоев, среди которых погружение образцов ВТСП-лент в расплавленный припой, соединение внахлест с приложением давления, диффузионное соединение с использованием стабилизирующих слоев серебра, а также соединение с использованием индукционного нагрева. Подбор химического состава припоев и флюсов, а также выбор режимов пайки оказывают существенное влияние на свойства ВТСП-лент.

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