Cation size effects-modified phase and PTCR development in Er3+ and Ca2+ co-doped BaTiO3 ceramics during sintering

Cation size effects-modified phase and PTCR development in Er3+ and Ca2+ co-doped BaTiO3 ceramics during sintering

Development of the positive temperature coefficient of resistivity (PTCR) in Er3+ and Ca2+ co-doped ferroelectric BaTiO3 was studied in this work, with Er3+ being used to act as a donor doping. Irrespective of all the materials showing high densities after sintering at 1200 to 1300 ºC, these reveale...

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Bibliographic Details
Main Authors: Ronaldo Santos da Silva, Jean-Claude M'Peko, Lilian da Costa Fontes, Antonio Carlos Hernandes
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2009-09-01
Series:Materials Research
Subjects:
phase development
electrical properties
PTCR
BaTiO3
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000300007

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392009000300007

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