Phase composition and ionic conductivity of zirconia stabilized with scandia and europia

Autor(es)

Souza, J. P. ^[1] ; Grosso, R. L. ^[1] ; Muccillo, R. ^[1] ; Muccillo, E. N. S. ^[1]

Afiliação do(s) autor(es)

^[1] IPEN, Energy & Nucl Res Inst, POB 11049, BR-05422970 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Materials Letters; v. 229, p. 53-56, OCT 15 2018.
• Citações Web of Science: 3

Resumo

Sintered specimens of zirconia-10 mol% scandia pure and codoped (up to 1.25 mol%) with europium sexquioxide were prepared by solid-state synthesis, aiming to stabilize at room temperature the high-conductivity cubic phase. High-temperature X-ray diffraction and differential scanning calorimetry results reveal that small amounts of the codopant reduce the enthalpy of phase transition, and full stabilization is evidenced for 1 mol% europium sexquioxide. The low-temperature (<600 degrees C) ionic conductivity increases with increasing codopant content. (C) 2018 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais
• Beneficiário: Elson Longo da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs