Crystal growth and phase transitions in the NbxCr1-xO2(x ≥ 0.5) system

Lina Ben-dor; Y. Shimony

doi:10.1016/0022-0248(78)90361-5

Crystal growth and phase transitions in the Nb_xCr_1-xO₂(x ≥ 0.5) system

Lina Ben-dor^*
, Y. Shimony

^*Corresponding author for this work

Institute of Chemistry

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

4 Scopus citations

Abstract

In the series Nb_xCr_1-xO₂, ten different compositions in the range 0.5≤x≤1.0 were prepared. Single crystals were grown from the appropriate stoichiometric mixtures by chemical transport in closed ampoules, using a mixture of NbCl₅ and Cl₂ as the transporting agents. X-ray powder diffraction data showed the material to have the rutile tetragonal structure (R) for 0.5≤x< 0.92 and the low temperature NbO₂ superstructure (LT) for x≥0.92. The phase transition was studied by DTA.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Journal of Crystal Growth
Volume	43
Issue number	1
DOIs	https://doi.org/10.1016/0022-0248(78)90361-5
State	Published - 1978

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abstract = "In the series NbxCr1-xO2, ten different compositions in the range 0.5≤x≤1.0 were prepared. Single crystals were grown from the appropriate stoichiometric mixtures by chemical transport in closed ampoules, using a mixture of NbCl5 and Cl2 as the transporting agents. X-ray powder diffraction data showed the material to have the rutile tetragonal structure (R) for 0.5≤x< 0.92 and the low temperature NbO2 superstructure (LT) for x≥0.92. The phase transition was studied by DTA.",

author = "Lina Ben-dor and Y. Shimony",

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AB - In the series NbxCr1-xO2, ten different compositions in the range 0.5≤x≤1.0 were prepared. Single crystals were grown from the appropriate stoichiometric mixtures by chemical transport in closed ampoules, using a mixture of NbCl5 and Cl2 as the transporting agents. X-ray powder diffraction data showed the material to have the rutile tetragonal structure (R) for 0.5≤x< 0.92 and the low temperature NbO2 superstructure (LT) for x≥0.92. The phase transition was studied by DTA.

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Crystal growth and phase transitions in the Nb_xCr_1-xO₂(x ≥ 0.5) system

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