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Equilibrium phases in Mn–V–O system under ambient atmosphere

Published online by Cambridge University Press:  31 January 2011

S. K. Chung*
Affiliation:
World-Peace Institute of Technology, 417–1, Duksung-Ri, Idong-Myun, Yongin-City, Kyungki-Do, Korea
S. J. Shin
Affiliation:
World-Peace Institute of Technology, 417–1, Duksung-Ri, Idong-Myun, Yongin-City, Kyungki-Do, Korea
A. A. Andriiko
Affiliation:
Institute of General and Inorganic Chemistry, 32/34 Prospect Palladina, 252142 Kiev, Ukraine
P. V. Rudenok
Affiliation:
Institute of General and Inorganic Chemistry, 32/34 Prospect Palladina, 252142 Kiev, Ukraine
*
a) Address all correspondence to this author.
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Abstract

The products obtained from MnO2–V2O5 mixtures at the ambient oxygen pressure and temperatures up to 900 °C were studied by means of thermal analysis and x-ray diffraction methods. The following phases were found to exist in equilibrium, depending on the composition: (I) Mn2O3–Mn2V2O7, (II) Mn2V2O7–MnV2O6, and (III) V2O5–solid solution of VO2 in MnV2O6. A phase diagram was obtained for the composition region III. The data are instructive for syntheses of manganese vanadates by thermal methods.

Type
Articles
Copyright
Copyright © Materials Research Society 1999

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References

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