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Grain size and boundary-related effects on the properties of nanocrystalline barium titanate ceramics
- 1.0080148 - FZÚ 2007 RIV GB eng J - Journal Article
Buscaglia, V. - Buscaglia, M. T. - Viviani, M. - Mitoseriu, L. - Nanni, P. - Trefiletti, V. - Piaggio, P. - Gregora, Ivan - Ostapchuk, Tetyana - Pokorný, Jan - Petzelt, Jan
Grain size and boundary-related effects on the properties of nanocrystalline barium titanate ceramics.
[Vliv velikosti zrn a hranic zrn na vlastnosti nanokrystalické keramiky na bázi titanátu baria.]
Journal of the European Ceramic Society. Roč. 26, - (2006), s. 2889-2898. ISSN 0955-2219. E-ISSN 1873-619X
R&D Projects: GA MŠMT OC 525.20
Institutional research plan: CEZ:AV0Z10100520
Keywords : grain size * grain boundaries * spectroscopy * dielectric properties * BaTiO3
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.576, year: 2006
Dense nanocrystaline BaTiO3 ceramics with grain size (GS) down to 50 nm were studied by X-ray difraction (XRD), differential scanning calorimetry (DSC), impedance spectroscopy and Raman spectroscopy. The tetragonality and heat of transition with reducing GS, and extrinsic contributions due to the non-ferroelectric grain boundaries causing a "dilution" of the ferroelectric properties.
Nanokrystalické keramiky BaTiO3 byly studovány rentgenovou difrakcí, diferenciální kalorimetrií, impendanční a Ramanovou spektroskopií. Pozorované vlastnosti jsou vysvětleny kombinací intrinzických jevů spojených s poklesem tetragonality a extrinzických příspěvků od neferoelektrických hranic zrn.
Permanent Link: http://hdl.handle.net/11104/0144574
Number of the records: 1