Preparation and impedance spectroscopic studies of Ba β-Al2O3

被引：6

作者：

Dunn, S ^{[1
]}

Kumar, RV ^{[1
]}

Fray, DJ ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

SOLID STATE IONICS | 1999年 / 124卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

impedance spectroscopy; beta-Al2O3; synthesis; XRD; activation energy;

D O I：

10.1016/S0167-2738(99)00084-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Samples of Ba beta-Al2O3 with the stoichiometries BaAl9O15 to BaAl14O22 were prepared by a solid state route from Al2O3 and BaCO3. Samples of MgO-stabilised and ZrO2-added material were also prepared. After rationalising the calcining and sintering procedure to produce dense samples (99% of theoretical) such samples were then analysed by Impedance Spectroscopy. Differences in the Arrhenius plots e.g. activation energies for the different materials are shown. XRD patterns showed BaAl9O15 and BaAl14O22 to be single phase with the BaAl12O19 material being a mixture of BaAl9O15 and BaAl14O22. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：133 / 142

页数：10

共 25 条

[1] THE STRUCTURE OF BA-2+-BETA-ALUMINA AND CA-2+-BETA-ALUMINA [J].

ALDEN, M ;

THOMAS, JO ;

FARRINGTON, G .

SOLID STATE IONICS, 1981, 5 (OCT) :205-206

[2]

Beevers CA, 1937, Z KRISTALLOGR, V97, P59

[3] EXISTENCE OF NON-LABILE SODIUM IN POLYCRYSTALLINE SODIUM BETA ALUMINA [J].

BREITER, MW ;

FARRINGTON, GC .

MATERIALS RESEARCH BULLETIN, 1978, 13 (11) :1213-1220

[4] BETA-ALUMINA, A TYPICAL SOLID ELECTROLYTE - LATEST DEVELOPMENTS IN FUNDAMENTAL APPROACH AND IN BATTERY UTILIZATION [J].

COLLONGUES, R ;

GOURIER, D ;

KAHN, A ;

BOILOT, JP ;

COLOMBAN, P ;

WICKER, A .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1984, 45 (10) :981-1013

[5]

DAVIES A, UNPUB SYNTHESIS S MA

[6] DIVALENT-CATION CONDUCTIVITY IN BETA-''-ALUMINA [J].

DUNN, B ;

OSTROM, RM ;

SEEVERS, R ;

FARRINGTON, GC .

SOLID STATE IONICS, 1981, 5 (OCT) :203-204

[7]

FRAY DJ, CONCISE ENCY MAT CHA, P175

[8]

GREEN DJ, 1984, AM CERAM SOC BULL, V63, P803

[9]

GREEN DJ, 1985, J MATER SCI, V20, P2693

[10] THE CRYSTAL-STRUCTURE OF BA-BETA-ALUMINA MATERIALS FOR HIGH-TEMPERATURE CATALYTIC COMBUSTION [J].

GROPPI, G ;

ASSANDRI, F ;

BELLOTTO, M ;

CRISTIANI, C ;

FORZATTI, P .

JOURNAL OF SOLID STATE CHEMISTRY, 1995, 114 (02) :326-336

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