НАНОСИСТЕМЫ: ФИЗИКА, ХИМИЯ, МАТЕМАТИКА, 2011, 2 (2), С. 6–14
ОБРАЗОВАНИЕ В ГИДРОТЕРМАЛЬНЫХ УСЛОВИЯХИ ОСОБЕННОСТИ СТРОЕНИЯ НАНОЧАСТИЦНА ОСНОВЕ СИСТЕМЫ ZrO2—Gd2O3
М.В. Томкович(1), Е. Р. Андриевская(2),(3), В. В. Гусаров(1),(4)
(1)Физико-технический институт им. А.Ф. Иоффе РАН
(2)Институт проблем материаловедения им. И.Н. Францевича НАН Украины
(3)Национальный технический университет Украины «Киевский политехнический
институт»
(4)Санкт-Петербургский государственный технологический институт
(технический университет)
mariya_tom@mail.ru, victor.v.gusarov@gmail.com
В гидротермальных условиях получены наночастицы на основе системы ZrO2-Gd2O3. Показано, что в области концентраций ZrO2:GdO1.5 = 0.6 – 9.5 при температурах 250-450 оС и давлении около 90 МПа образуются нанокристаллы твердых растворов ZrO2 (GdO1.5) с флюоритоподобной структурой. Параметры элементарной ячейки ZrO2(GdO1.5) нелинейно возрастают с увеличением концентрации оксида гадолиния в системе до 45 мол. % GdO1.5. Такой характер изменения параметров элементарной ячейки объяснен распределением оксида
гадолиния междуа втономной (кристаллической) и неавтономной фазой.
Ключевые слова: наночастицы, гидротермальный синтез, диоксид циркония, оксид гадолиния, неавтономные фазы.
УДК 544.228
PACS 61.46.-w; 81.07.-b
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