Preparation and impedance spectroscopic studies of Ba β-Al2O3

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

doi:10.1016/S0167-2738(99)00084-3

Preparation and impedance spectroscopic studies of Ba β-Al₂O₃

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

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

6 Citations (Scopus)

Abstract

Samples of Ba β-Al₂O₃ with the stoichiometries BaAl₉O₁₅ to BaAl₁₄O₂₂ were prepared by a solid state route from Al₂O₃ and BaCO₃. Samples of MgO-stabilized and ZrO₂-added material were also prepared. After rationalizing the calcining and sintering procedure to produce dense samples (99% of theoretical) such samples were then analyzed 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.

Original language	English
Pages (from-to)	133-142
Number of pages	10
Journal	Solid State Ionics
Volume	124
Issue number	1-2
DOIs	https://doi.org/10.1016/S0167-2738(99)00084-3
Publication status	Published - 1 Sept 1999
Externally published	Yes

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10.1016/S0167-2738(99)00084-3

Cite this

@article{1abb4e7dd451418e85d1a3b1c2ed9694,

title = "Preparation and impedance spectroscopic studies of Ba β-Al2O3",

abstract = "Samples of Ba β-Al2O3 with the stoichiometries BaAl9O15 to BaAl14O22 were prepared by a solid state route from Al2O3 and BaCO3. Samples of MgO-stabilized and ZrO2-added material were also prepared. After rationalizing the calcining and sintering procedure to produce dense samples (99% of theoretical) such samples were then analyzed 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.",

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

year = "1999",

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doi = "10.1016/S0167-2738(99)00084-3",

language = "English",

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TY - JOUR

T1 - Preparation and impedance spectroscopic studies of Ba β-Al2O3

AU - Dunn, S.

AU - Kumar, R. V.

AU - Fray, D. J.

PY - 1999/9/1

Y1 - 1999/9/1

N2 - Samples of Ba β-Al2O3 with the stoichiometries BaAl9O15 to BaAl14O22 were prepared by a solid state route from Al2O3 and BaCO3. Samples of MgO-stabilized and ZrO2-added material were also prepared. After rationalizing the calcining and sintering procedure to produce dense samples (99% of theoretical) such samples were then analyzed 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.

AB - Samples of Ba β-Al2O3 with the stoichiometries BaAl9O15 to BaAl14O22 were prepared by a solid state route from Al2O3 and BaCO3. Samples of MgO-stabilized and ZrO2-added material were also prepared. After rationalizing the calcining and sintering procedure to produce dense samples (99% of theoretical) such samples were then analyzed 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.

U2 - 10.1016/S0167-2738(99)00084-3

DO - 10.1016/S0167-2738(99)00084-3

M3 - Article

AN - SCOPUS:0032652919

SN - 0167-2738

VL - 124

SP - 133

EP - 142

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1-2

ER -