http://www.cnr.it/ontology/cnr/individuo/prodotto/ID21995

Investigation of Ba1-xSrxTiO3 ceramics prepared from powders synthesized by the modified Pechini route (Articolo in rivista)

Type

Label

Investigation of Ba1-xSrxTiO3 ceramics prepared from powders synthesized by the modified Pechini route (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

Adelina Ianculescu; Daniela Berger; Massimo Viviani; Cristina Elena Ciomaga; Liliana Mitoseriu; Eugeniu Vasile; Nicolae Dragan; Dorel Crisan (2007)
Investigation of Ba1-xSrxTiO3 ceramics prepared from powders synthesized by the modified Pechini route
in Journal of the European Ceramic Society; Elsevier Science Ltd., Oxford (Regno Unito)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Adelina Ianculescu; Daniela Berger; Massimo Viviani; Cristina Elena Ciomaga; Liliana Mitoseriu; Eugeniu Vasile; Nicolae Dragan; Dorel Crisan (literal)

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://puma.isti.cnr.it/linkres.php?resource=cnr.ieni/cnr.ieni.ge/2007-A0-021 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

In: Journal of the European Ceramic Society, vol. 27 (13-15) pp. 3655 - 3658. Electroceramics X: Tenth Edition of the International Conference on Electroceramics (18-22 June 2006,Toledo, Spain). Elsevier, 2007. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Polytechnics University of Bucharest, 1-7 Gh. Polizu, P.O. Box 12-134, 011061 Bucharest, Romania; Institute for Energetics & Interphases, CNR, 6 Via de Marini, I-16149 Genoa, Italy; Alexandru Ioan Cuza University, 11 Bv. Carol I, 700506 Ia¸si, Romania; S.C. METAV, Research & Development Bucharest, 31 C.A. Rosetti, 020011 Bucharest, Romania; Institute of Physical Chemistry Ilie Murgulescu of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania (literal)

Titolo

Investigation of Ba1-xSrxTiO3 ceramics prepared from powders synthesized by the modified Pechini route (literal)

Abstract

Ba1-xSrxTiO3 (x = 0, 0.20, 0.25, 0.30 and 0.35) nanopowders were prepared by Pechini method from titanium isopropoxide, barium and strontium carbonates using citric acid as a chelating agent and ethylene glycol as an esterification agent. X-ray diffraction data show the formation of (Ba,Sr)TiO3 solid solutions, free from secondary phases as BaCO3 or Ti-rich oxides, when the polymeric precursors were calcined in air at 850 °C for 2 h. Ceramic pellets with relative density of 85-93% were obtained after sintering at 1350 °C for 3 h. High values of the dielectric constants (of ~1500-12,000), low losses at the room temperature and a shift of the ferro-para phase transition temperature in the range of 7-127 °C with x decreasing were found. Lower values of the Curie constant for higher x indicate the increase of the chemical and electrical local heterogeneity degree. (literal)

Editore