Синтез высокоэнтропийных оксидов PbFe_2.4X_2.4Y_2.4Ga_2.4In_2.4O₁₉ со структурой магнетоплюмбита

Цель данного исследования – получение образцов высокоэнтропийных оксидов со структурой магнетоплюмбита, в которых в качестве катиона двухвалентного металла используется катион Pb. Разработана методика, позволяющая избежать существенного испарения оксида свинца в процессе синтеза. Впервые получены практически однофазные образцы высокоэнтропийных оксидов со структурой магнетоплюмбита, состав которых отражает формула PbFe_2.4X_2.4Y_2.4Ga_2.4In_2.4O₁₉. Размер частиц в некоторых случаях составляет порядка 100 нм, что делает их перспективными для ряда приложений. Изучено влияние предварительного перемалывания исходных компонентов на результаты синтеза. Предложен механизм синтеза. Полученные результаты открывают путь к синтезу и исследованию свойств новой большой подгруппы высокоэнтропийных оксидов со структурой магнетоплюмбита, что расширяет возможности управления свойствами керамических магнитных материалов.

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