Effect of oxygen activity on Nb solubility in BaTiO3

K. Kowalski; M. Ijjaali; T. Bak; B. Dupre; Janusz Nowotny; M. Rekas; C. C. Sorrell

doi:10.1016/S0022-3697(00)00212-2

Effect of oxygen activity on Nb solubility in BaTiO₃

K. Kowalski
, M. Ijjaali
, T. Bak
, B. Dupre
, Janusz Nowotny
, M. Rekas
, C. C. Sorrell

Université de Lorraine
University of New South Wales

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

11 Citations (Scopus)

Abstract

This paper describes the effect of oxygen partial pressure on Nb solubility in polycrystalline BaTiO₃ at 1673 K. It was found that an increase of p(O₂) in the gas phase results in an increased Nb solubility in BaTiO₃. Annealing of polycrystalline BaTiO₃, covered with a thin layer of NbCl₅, in air at 1573 K results in Nb incorporation to the level of 0.1 at.% while annealing at the same temperature in nitrogen (involving 2% H₂) does not lead to Nb incorporation into BaTiO₃. The observed effect of p(O₂) on Nb solubility in BaTiO₃ is consistent with the defect disorder model of BaTiO₃.

Original language	English
Pages (from-to)	537-541
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	62
Issue number	3
DOIs	https://doi.org/10.1016/S0022-3697(00)00212-2
Publication status	Published - Mar 2001
Externally published	Yes

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title = "Effect of oxygen activity on Nb solubility in BaTiO3",

abstract = "This paper describes the effect of oxygen partial pressure on Nb solubility in polycrystalline BaTiO3 at 1673 K. It was found that an increase of p(O2) in the gas phase results in an increased Nb solubility in BaTiO3. Annealing of polycrystalline BaTiO3, covered with a thin layer of NbCl5, in air at 1573 K results in Nb incorporation to the level of 0.1 at.\% while annealing at the same temperature in nitrogen (involving 2\% H2) does not lead to Nb incorporation into BaTiO3. The observed effect of p(O2) on Nb solubility in BaTiO3 is consistent with the defect disorder model of BaTiO3.",

author = "K. Kowalski and M. Ijjaali and T. Bak and B. Dupre and Janusz Nowotny and M. Rekas and Sorrell, \{C. C.\}",

year = "2001",

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language = "English",

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pages = "537--541",

journal = "Journal of Physics and Chemistry of Solids",

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TY - JOUR

T1 - Effect of oxygen activity on Nb solubility in BaTiO3

AU - Kowalski, K.

AU - Ijjaali, M.

AU - Bak, T.

AU - Dupre, B.

AU - Nowotny, Janusz

AU - Rekas, M.

AU - Sorrell, C. C.

PY - 2001/3

Y1 - 2001/3

N2 - This paper describes the effect of oxygen partial pressure on Nb solubility in polycrystalline BaTiO3 at 1673 K. It was found that an increase of p(O2) in the gas phase results in an increased Nb solubility in BaTiO3. Annealing of polycrystalline BaTiO3, covered with a thin layer of NbCl5, in air at 1573 K results in Nb incorporation to the level of 0.1 at.% while annealing at the same temperature in nitrogen (involving 2% H2) does not lead to Nb incorporation into BaTiO3. The observed effect of p(O2) on Nb solubility in BaTiO3 is consistent with the defect disorder model of BaTiO3.

AB - This paper describes the effect of oxygen partial pressure on Nb solubility in polycrystalline BaTiO3 at 1673 K. It was found that an increase of p(O2) in the gas phase results in an increased Nb solubility in BaTiO3. Annealing of polycrystalline BaTiO3, covered with a thin layer of NbCl5, in air at 1573 K results in Nb incorporation to the level of 0.1 at.% while annealing at the same temperature in nitrogen (involving 2% H2) does not lead to Nb incorporation into BaTiO3. The observed effect of p(O2) on Nb solubility in BaTiO3 is consistent with the defect disorder model of BaTiO3.

UR - https://www.scopus.com/pages/publications/0035283771

U2 - 10.1016/S0022-3697(00)00212-2

DO - 10.1016/S0022-3697(00)00212-2

M3 - Article

AN - SCOPUS:0035283771

SN - 0022-3697

VL - 62

SP - 537

EP - 541

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 3

ER -

Effect of oxygen activity on Nb solubility in BaTiO₃

Abstract

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