Trends in formation of the nanocrystalline structure and cationic ordering in the Dy2O3-HfO2 (1: 1) system. Russian Journal of Inorganic Chemistry Volume 58, Issue 3, March 2013, Pages 331-337

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Вид публикации	Статья
Контактные данные автора публикации	Popov, V.V.a, Menushenkov, A.P.a, Zubavichus, Ya.V.b, Veligzhanin, A.A.b, Yaroslavtsev, A.A.a, Chernikov, R.V.c, Leshchev, D.S.a, Petrunin, V.F.a, Korovin, S.A.a, Bednarcik, J.c a National Research Nuclear Universit
Ссылка на публикацию в интернете	www.scopus.com/record/display.url?origin=recordpage&eid=2-s2.0-84879616554&citeCnt=3&noHighlight=false&sort=plf-f&src=s&st1=MEPhI&nlo=&nlr=&nls=&sid=F0743CC1BB1CEC168410A18CB87C48A7.Vdktg6RVtMfaQJ4pNTCQ:6500&sot=b&sdt=b&sl=31&s=AFFIL(MEPhI) AND PU

Аннотация

Evolution of the nanocrystalline structure of the complex oxide Dy 2HfO5 in the course of thermal annealing at temperatures to 1600 C has been studied by a combination of X-ray and synchrotron methods, including traditional and anomalous X-ray diffraction, PDF, EXAFS, and SAXS. The changes in crystallite size upon annealing of the as-synthesized amorphous precursor have been analyzed in detail. The systematic distortions of a fluorite-type perfect crystal structure (space group $$Fmar 3m$$) related to the nonequivalence of the local environment of the Dy and Hf cations but not resulting in formation of a pyrochlore-type cationordered structure in this system have been examined. © 2013 Pleiades Publishing, Ltd.

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Indexed keywords

Amorphous precursors; Anomalous X-ray diffraction; Cation-ordered structure; Cationic ordering; Complex oxides; Local environments; Nano-crystalline structures; Thermal-annealing

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