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Rietveld refinement of barium titanate stannate crystal structure

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2011
685.pdf (103.6Kb)
Authors
Veselinović, Ljiljana
Mitrić, Miodrag
Vukomanović, Marija
Marković, Smilja
Uskoković, Dragan
Conference object (Published version)
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Abstract
The barium titanates have wide application in electronic industry as a dielectric and ferroelectric materials.The BaTiO3 doped with Sn is important for practical application in ceramic capacitors as well as in functionally graded materials. It is known that BaTiO3 materials have the typical perovsikite crystal structural. Their ideal crystal structure is a centrosimetric cubic structure with space group. However, the changes in temperature, pressure, and composition lead to phase transitions and crystal structure transformations. Pm 3m in this study using by Rietveld refinement, we resolved crystal structure of barium titanate stannate (BTS) BaTi1−xSnxO3 (x = 0, 0.025, 0.05, 0.07, 0.10, 0.12, 0.15 and 0.20) solid solutions. The powders were prepared by simple solid state reaction at 1420 oC, in air for 2 hours. The structural investigations of the BTS samples were done at room temperature using an X-ray diffraction, Raman spectroscopy and TEM micrograph. The Rietveld refinement of the ...X-ray diffraction data was used to analyze the structural changes depending on amount of the Sn4+ ions in the BTS. Obtained data show that increasing of Sn amount in the structure provokes the transformation of crystal structure from tetragonal to cubic one. We suppose that the absence of orthorhombic and rhombohedral phases is probably a consequence of phase (0.025≤x<0.20) stabilization caused by method of sample preparation (high temperature solid state reaction).

Keywords:
Rietveld refinement / barium titanate stannate / crystal structure
Source:
The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts, 2011, 136-136
Publisher:
  • Belgrade : Materials Research Society of Serbia
Funding / projects:
  • Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-45004)
[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_dais_688
URI
https://dais.sanu.ac.rs/123456789/688
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - CONF
AU  - Veselinović, Ljiljana
AU  - Mitrić, Miodrag
AU  - Vukomanović, Marija
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/688
AB  - The barium titanates have wide application in electronic industry as a dielectric and ferroelectric materials.The BaTiO3 doped with Sn is important for practical application in ceramic capacitors as well as in functionally graded materials. It is known that BaTiO3 materials have the typical perovsikite crystal structural. Their ideal crystal structure is a centrosimetric cubic structure with space group. However, the changes in temperature, pressure, and composition lead to phase transitions and crystal structure transformations. Pm 3m in this study using by Rietveld refinement, we resolved crystal structure of barium titanate stannate (BTS) BaTi1−xSnxO3 (x = 0, 0.025, 0.05, 0.07, 0.10, 0.12, 0.15 and 0.20) solid solutions. The powders were prepared by simple solid state reaction at 1420 oC, in air for 2 hours. The structural investigations of the BTS samples were done at room temperature using an X-ray diffraction, Raman spectroscopy and TEM micrograph. The Rietveld refinement of the X-ray diffraction data was used to analyze the structural changes depending on amount of the Sn4+ ions in the BTS. Obtained data show that increasing of Sn amount in the structure provokes the transformation of crystal structure from tetragonal to cubic one. We suppose that the absence of orthorhombic and rhombohedral phases is probably a consequence of phase (0.025≤x<0.20) stabilization caused by method of sample preparation (high temperature solid state reaction).
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
T1  - Rietveld refinement of barium titanate stannate crystal structure
SP  - 136
EP  - 136
UR  - https://hdl.handle.net/21.15107/rcub_dais_688
ER  - 
@conference{
author = "Veselinović, Ljiljana and Mitrić, Miodrag and Vukomanović, Marija and Marković, Smilja and Uskoković, Dragan",
year = "2011",
abstract = "The barium titanates have wide application in electronic industry as a dielectric and ferroelectric materials.The BaTiO3 doped with Sn is important for practical application in ceramic capacitors as well as in functionally graded materials. It is known that BaTiO3 materials have the typical perovsikite crystal structural. Their ideal crystal structure is a centrosimetric cubic structure with space group. However, the changes in temperature, pressure, and composition lead to phase transitions and crystal structure transformations. Pm 3m in this study using by Rietveld refinement, we resolved crystal structure of barium titanate stannate (BTS) BaTi1−xSnxO3 (x = 0, 0.025, 0.05, 0.07, 0.10, 0.12, 0.15 and 0.20) solid solutions. The powders were prepared by simple solid state reaction at 1420 oC, in air for 2 hours. The structural investigations of the BTS samples were done at room temperature using an X-ray diffraction, Raman spectroscopy and TEM micrograph. The Rietveld refinement of the X-ray diffraction data was used to analyze the structural changes depending on amount of the Sn4+ ions in the BTS. Obtained data show that increasing of Sn amount in the structure provokes the transformation of crystal structure from tetragonal to cubic one. We suppose that the absence of orthorhombic and rhombohedral phases is probably a consequence of phase (0.025≤x<0.20) stabilization caused by method of sample preparation (high temperature solid state reaction).",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts",
title = "Rietveld refinement of barium titanate stannate crystal structure",
pages = "136-136",
url = "https://hdl.handle.net/21.15107/rcub_dais_688"
}
Veselinović, L., Mitrić, M., Vukomanović, M., Marković, S.,& Uskoković, D.. (2011). Rietveld refinement of barium titanate stannate crystal structure. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 136-136.
https://hdl.handle.net/21.15107/rcub_dais_688
Veselinović L, Mitrić M, Vukomanović M, Marković S, Uskoković D. Rietveld refinement of barium titanate stannate crystal structure. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts. 2011;:136-136.
https://hdl.handle.net/21.15107/rcub_dais_688 .
Veselinović, Ljiljana, Mitrić, Miodrag, Vukomanović, Marija, Marković, Smilja, Uskoković, Dragan, "Rietveld refinement of barium titanate stannate crystal structure" in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts (2011):136-136,
https://hdl.handle.net/21.15107/rcub_dais_688 .

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