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Preparation and characterisation of the Ba(Zr,Ti)O3 ceramics with relaxor properties (Articolo in rivista)

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Preparation and characterisation of the Ba(Zr,Ti)O3 ceramics with relaxor properties (Articolo in rivista) (literal)

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Alternative label

Cristina Ciomaga; Massimo Viviani; Maria Teresa Buscaglia; Vincenzo Buscaglia; Liliana Mitoseriu; Alexandru Stancu; Paolo Nanni (2007)
Preparation and characterisation of the Ba(Zr,Ti)O3 ceramics with relaxor properties
in Journal of the European Ceramic Society; Elsevier Science Ltd., Oxford (Regno Unito)
(literal)

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Cristina Ciomaga; Massimo Viviani; Maria Teresa Buscaglia; Vincenzo Buscaglia; Liliana Mitoseriu; Alexandru Stancu; Paolo Nanni (literal)

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http://puma.isti.cnr.it/linkres.php?resource=cnr.ieni/cnr.ieni.ge/2007-A0-013 (literal)

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Rivista

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In: Journal of the European Ceramic Society, vol. 27 (13-15) pp. 4061 - 4064. Electroceramics X : Tenth International Conference on Electroceramics (Toledo, Spain, 18-22 June 2006). Elsevier, 2007. (literal)

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Department of Solid State & Theoretical Physics, Al. I. Cuza University, Bv. Carol I No. 11, Iasi 700506, Romania; Institute for Energetics & Interphases, CNR, Via de Marini No. 6, Genoa I-16149, Italy; Department Chemical & Process Engineering, University of Genoa, P-le Kennedy No. 1, I-16129 Genoa, Italy (literal)

Titolo

Preparation and characterisation of the Ba(Zr,Ti)O3 ceramics with relaxor properties (literal)

Abstract

Ba(ZrxTi1-x)O3 ceramics with x = 0.10, 0.15 and 0.18 were prepared via solid state reaction. For the composition x = 0.10, ceramics with various grain sizes in the range 0.75-3.20 µm were obtained by sintering at various temperatures 1350-1500 °C. High permittivity (above 14,000 at the transition temperature) and losses smaller than 7% for temperatures below 120 °C, together with a shift of the Curie temperature towards lower values with increasing x, are characteristic to these ceramics. A ferroelectric-relaxor crossover takes place when x increases, with intermediate character for all the compositions. For the composition x = 0.10, the relaxor state is favoured by reducing the grain size. (literal)

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