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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Electric field-assisted pressureless sintering gadolinium-, yttrium- and samarium-doped barium cerate

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Author(s):
Muccillo, R. [1, 2] ; Esposito, V [3] ; de Florio, D. Z. [1] ; Muccillo, E. N. S. [2]
Total Authors: 4
Affiliation:
[1] Fed Univ ABC, Ctr Engn Modeling & Appl Social Sci, BR-09210580 Santo Andre, SP - Brazil
[2] Energy & Nucl Res Inst, Ctr Sci & Technol Mat, BR-05508170 Sao Paulo, SP - Brazil
[3] Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde - Denmark
Total Affiliations: 3
Document type: Journal article
Source: SCRIPTA MATERIALIA; v. 156, p. 6-9, NOV 2018.
Web of Science Citations: 0
Abstract

Gadolinium-, yttrium- and samarium-doped barium cerate compounds were sintered either conventionally at 1500 degrees C or applying an electric field at 1200 degrees C. The combined results of dilatometry and impedance spectroscopy measurements in electric field-assisted sintered specimens show substantial improvement of the electrical conductivity. Improved grain-to-grain contact and the thermal removal of depleted chemical species due to Joule heating at the space charge region are proposed as the main mechanisms for the increase of both the grain boundary and the bulk electrical conductivities, respectively. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC