Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 554, Issue -, Pages 385-394Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.12.011
Keywords
TbMnO3; Phase diagram; Solid-state reaction; Multiferroic; Powder X-ray diffraction
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Funding
- National Key Basic Research Project of China [2010CB833103]
- National Natural Science Foundation of China [11075220]
- Beijing Municipal Commission of Education [KM20101000 5019]
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The phase relationship of the TbO1.81-Mn3O4-Fe2O3 pseudo-ternary system synthesized at 1200 degrees C was determined using X-ray and neutron diffraction method. Four solid solutions, Mn3-3xFe3xO4 (0.00 <= x <= 0.278), Mn3-3xFe3xO4 (0.291 <= x <= 0.667), Mn2-2xFe2xO3 (0.89 <= x <= 1.00), and (Tb1-yMnzFex) (FewMn1-w)O-3 (1-y + x + z <= 1, 0.00 <= w <= 1.00) were found along with six two-phase regions and three three-phase regions. The boundaries were determined by several different methods such as phase disappearing, the Vigard's law, and the lever rule. (C) 2012 Elsevier B. V. All rights reserved.
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