ELECTRICAL-PROPERTIES OF NEW-TYPE HIGH OXIDE IONIC CONDUCTOR RE10SI6O27 (RE = LA, PR, ND, SM, GD, DY)

Authors
NAKAYAMA S SAKAMOTO M
Citation
S. Nakayama et M. Sakamoto, ELECTRICAL-PROPERTIES OF NEW-TYPE HIGH OXIDE IONIC CONDUCTOR RE10SI6O27 (RE = LA, PR, ND, SM, GD, DY), Journal of the European Ceramic Society, 18(10), 1998, pp. 1413-1418
Citations number
8
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the European Ceramic Society → ACNP
ISSN journal
09552219
Volume
18
Issue
10
Year of publication
1998
Pages
1413 - 1418
Database
ISI
SICI code
0955-2219(1998)18:10<1413:EONHOI>2.0.ZU;2-5
Abstract
Electrical properties of the high oxide ionic conductive ceramic RE10S i6O27 (RE = La, Pr, Nd, Sm, Gd, Dy) sintered at 1700-1800 degrees C by the use of MgO-stabilized zirconia setter during a sintering have bee n investigated The lowest activation energy and the highest conductivi ty at 200 degrees C were achieved for Pr10Si6O27 (55.4 kJ mol(-1)) and La10Si6O27 (1.32x10(-5) S cm(-1)), respectively. The conductivity of La10Si6O27 at 200 degrees C was higher by order of 1.5x10(1) times tha n that (8.82x10(-7) S cm(-1) at 200 degrees C) of (Bi2O3)(0.75)(Y2O3)( 0.25). The three-point bending strength of La10Si6O27 was 100 MPa. (C) 1998 Elsevier Science Limited. All rights reserved.