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  Concentration- and temperature-induced phase transitions in NdAlO3-TbAlO3 and NdAlO3-DyAlO3 systems

Ohon, N., Vasylechko, L., Kondyr, A., Prots, Y., & Schmidt, M. (2017). Concentration- and temperature-induced phase transitions in NdAlO3-TbAlO3 and NdAlO3-DyAlO3 systems. Journal of Alloys and Compounds, 693, 667-673. doi:10.1016/j.jallcom.2016.09.160.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-2F3D-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-6E5D-E
Genre: Journal Article

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 Creators:
Ohon, N.1, Author
Vasylechko, L.1, Author
Kondyr, A.1, Author
Prots, Yu.2, Author              
Schmidt, M.3, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863424              
3Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863415              

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 Abstract: Phase and structural behaviour in the NdAlO3-RAlO3 ( R = Tb, Dy) systems has been studied in a wide concentration and temperature ranges. Two kinds of solid solutions Nd1-xTbxAlO3 and Nd1-xDyxAlO3 with rhombohedral (space group No 167 R (3) over tilde c) and orthorhombic (space group No 62 Pbnm) perovskite structure are formed in these systems. Morphotropic phase transition between two perovskite-like structures occurs at x = 0.1 for Nd1-xTbxAlO3 and at x = 0.05-0.1 for Nd1-xDyxAlO3. First-order structural phase transition Pbnm <-> R (3) over bar c has been detected in Nd0.8Tb0.2AlO3, N0.6Tb0.4AlO3, Nd0.8Dy0.2AlO3 and Nd0.7Dy0.3AlO3 samples at 540 K, 1174 K, 687 K and 900 K, respectively. Phase diagrams of the pseudo-binary systems NdAlO3-TbAlO3 and NdAlO3-DyAlO3 have been constructed. (C) 2016 Elsevier B.V. All rights reserved.

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Language(s): eng - English
 Dates: 2017-02-052017-02-05
 Publication Status: Published in print
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Title: Journal of Alloys and Compounds
  Abbreviation : J. Alloy. Comp.
Source Genre: Journal
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Publ. Info: Lausanne, Switzerland : Elsevier B.V.
Pages: - Volume / Issue: 693 Sequence Number: - Start / End Page: 667 - 673 Identifier: ISSN: 0925-8388
CoNE: /journals/resource/954925567746