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X-Ray Diffraction Study of the Decomposition Process Occurring in Single Crystals of the K2NiF4-Type Aluminate LaCaAlO4. / Smirnov, Yr; Zvereva, I.; Choisnet, J.

In: Journal of Solid State Chemistry, Vol. 134, No. 1, 15.11.1997, p. 132-137.

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Smirnov, Yr ; Zvereva, I. ; Choisnet, J. / X-Ray Diffraction Study of the Decomposition Process Occurring in Single Crystals of the K2NiF4-Type Aluminate LaCaAlO4. In: Journal of Solid State Chemistry. 1997 ; Vol. 134, No. 1. pp. 132-137.

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@article{da7909895ae743f2bb83062d352c05d3,
title = "X-Ray Diffraction Study of the Decomposition Process Occurring in Single Crystals of the K2NiF4-Type Aluminate LaCaAlO4",
abstract = "The results of an X-ray diffraction study of the decomposition process occurring in the K2NiF4-type aluminate LaCaAlO4are reported. The experimental data concern two small single crystals heated for 1 and 10 h at 1200°C, respectively. As a final result, the presence of LaAlO3perovskite and CaO is unambiguously observed. After 1 h of heating, several intermediate phases can be identified as small-size LaAlO3-like microprecipitates. Well-defined orientation phenomena with respect to the matrix LaCaAlO4are evidenced for these phases and for CaO as well. On the basis of the variation of the perovskite cell volume of the intermediate phases, the decomposition process is tentatively modeled. In this respect, a tetragonal phase is considered as the precursor of LaAlO3perovskite.",
author = "Yr Smirnov and I. Zvereva and J. Choisnet",
note = "Funding Information: We are grateful to the Russian Fund of Fundamental Research for its financial support (Grant 97-03-33115).",
year = "1997",
month = nov,
day = "15",
doi = "10.1006/jssc.1997.7557",
language = "English",
volume = "134",
pages = "132--137",
journal = "Journal of Solid State Chemistry",
issn = "0022-4596",
publisher = "Elsevier",
number = "1",

}

RIS

TY - JOUR

T1 - X-Ray Diffraction Study of the Decomposition Process Occurring in Single Crystals of the K2NiF4-Type Aluminate LaCaAlO4

AU - Smirnov, Yr

AU - Zvereva, I.

AU - Choisnet, J.

N1 - Funding Information: We are grateful to the Russian Fund of Fundamental Research for its financial support (Grant 97-03-33115).

PY - 1997/11/15

Y1 - 1997/11/15

N2 - The results of an X-ray diffraction study of the decomposition process occurring in the K2NiF4-type aluminate LaCaAlO4are reported. The experimental data concern two small single crystals heated for 1 and 10 h at 1200°C, respectively. As a final result, the presence of LaAlO3perovskite and CaO is unambiguously observed. After 1 h of heating, several intermediate phases can be identified as small-size LaAlO3-like microprecipitates. Well-defined orientation phenomena with respect to the matrix LaCaAlO4are evidenced for these phases and for CaO as well. On the basis of the variation of the perovskite cell volume of the intermediate phases, the decomposition process is tentatively modeled. In this respect, a tetragonal phase is considered as the precursor of LaAlO3perovskite.

AB - The results of an X-ray diffraction study of the decomposition process occurring in the K2NiF4-type aluminate LaCaAlO4are reported. The experimental data concern two small single crystals heated for 1 and 10 h at 1200°C, respectively. As a final result, the presence of LaAlO3perovskite and CaO is unambiguously observed. After 1 h of heating, several intermediate phases can be identified as small-size LaAlO3-like microprecipitates. Well-defined orientation phenomena with respect to the matrix LaCaAlO4are evidenced for these phases and for CaO as well. On the basis of the variation of the perovskite cell volume of the intermediate phases, the decomposition process is tentatively modeled. In this respect, a tetragonal phase is considered as the precursor of LaAlO3perovskite.

UR - http://www.scopus.com/inward/record.url?scp=0000969774&partnerID=8YFLogxK

U2 - 10.1006/jssc.1997.7557

DO - 10.1006/jssc.1997.7557

M3 - Article

AN - SCOPUS:0000969774

VL - 134

SP - 132

EP - 137

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

SN - 0022-4596

IS - 1

ER -

ID: 88614678