Thermodynamic studies of the ionic conductor Ba β-Al2O3

S. Dunn; R. V. Kumar; D. J. Fray

doi:10.1016/S0167-2738(99)00307-0

Thermodynamic studies of the ionic conductor Ba β-Al₂O₃

S. Dunn, R. V. Kumar, D. J. Fray

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Samples of Ba β-Al₂O₃ with the stoichiometries BaAl_9.2O_14.8 to BaAl₁₄O₂₂ were prepared by a solid state route from Al₂O₃ and BaCO₃. The activity of Al₂O₃ was determined in each of the samples of Ba β-Al₂O₃ and for samples of a mixture of Al₂O₃ and phase I Ba β-Al₂O₃ with the composition BaAl₁₄O₂₂ and BaAl₂O₄ mixed with phase II Ba β-Al₂O₃ having a composition of BaAl_9.2O_14.8. In all cases the activity of Al₂O₃ for the mixtures or compounds was determined against Al₂O₃ using the solid electrolyte Na β-Al₂O₃ as the membrane. It is shown that the trend exhibited by the BaO-Al₂O₃ compositions are that exhibited by a solid solution of the two compositions BaAl_9.2O_14.8 and BaAl₁₄O₂₂.

Original language	English
Pages (from-to)	141-144
Number of pages	4
Journal	Solid State Ionics
Volume	128
Issue number	1-4
DOIs	https://doi.org/10.1016/S0167-2738(99)00307-0
Publication status	Published - 25 Feb 2000
Externally published	Yes

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10.1016/S0167-2738(99)00307-0

Cite this

@article{56b1dd50dea64ca597531b2ae6d4d8eb,

title = "Thermodynamic studies of the ionic conductor Ba β-Al2O3",

abstract = "Samples of Ba β-Al2O3 with the stoichiometries BaAl9.2O14.8 to BaAl14O22 were prepared by a solid state route from Al2O3 and BaCO3. The activity of Al2O3 was determined in each of the samples of Ba β-Al2O3 and for samples of a mixture of Al2O3 and phase I Ba β-Al2O3 with the composition BaAl14O22 and BaAl2O4 mixed with phase II Ba β-Al2O3 having a composition of BaAl9.2O14.8. In all cases the activity of Al2O3 for the mixtures or compounds was determined against Al2O3 using the solid electrolyte Na β-Al2O3 as the membrane. It is shown that the trend exhibited by the BaO-Al2O3 compositions are that exhibited by a solid solution of the two compositions BaAl9.2O14.8 and BaAl14O22.",

author = "S. Dunn and Kumar, {R. V.} and Fray, {D. J.}",

year = "2000",

month = feb,

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doi = "10.1016/S0167-2738(99)00307-0",

language = "English",

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pages = "141--144",

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TY - JOUR

T1 - Thermodynamic studies of the ionic conductor Ba β-Al2O3

AU - Dunn, S.

AU - Kumar, R. V.

AU - Fray, D. J.

PY - 2000/2/25

Y1 - 2000/2/25

N2 - Samples of Ba β-Al2O3 with the stoichiometries BaAl9.2O14.8 to BaAl14O22 were prepared by a solid state route from Al2O3 and BaCO3. The activity of Al2O3 was determined in each of the samples of Ba β-Al2O3 and for samples of a mixture of Al2O3 and phase I Ba β-Al2O3 with the composition BaAl14O22 and BaAl2O4 mixed with phase II Ba β-Al2O3 having a composition of BaAl9.2O14.8. In all cases the activity of Al2O3 for the mixtures or compounds was determined against Al2O3 using the solid electrolyte Na β-Al2O3 as the membrane. It is shown that the trend exhibited by the BaO-Al2O3 compositions are that exhibited by a solid solution of the two compositions BaAl9.2O14.8 and BaAl14O22.

AB - Samples of Ba β-Al2O3 with the stoichiometries BaAl9.2O14.8 to BaAl14O22 were prepared by a solid state route from Al2O3 and BaCO3. The activity of Al2O3 was determined in each of the samples of Ba β-Al2O3 and for samples of a mixture of Al2O3 and phase I Ba β-Al2O3 with the composition BaAl14O22 and BaAl2O4 mixed with phase II Ba β-Al2O3 having a composition of BaAl9.2O14.8. In all cases the activity of Al2O3 for the mixtures or compounds was determined against Al2O3 using the solid electrolyte Na β-Al2O3 as the membrane. It is shown that the trend exhibited by the BaO-Al2O3 compositions are that exhibited by a solid solution of the two compositions BaAl9.2O14.8 and BaAl14O22.

U2 - 10.1016/S0167-2738(99)00307-0

DO - 10.1016/S0167-2738(99)00307-0

M3 - Article

AN - SCOPUS:0034140540

SN - 0167-2738

VL - 128

SP - 141

EP - 144

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1-4

ER -