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X-ray powder diffraction data and thermal stability of a new high temperature phase of NaBi3V2O10

Published online by Cambridge University Press:  01 March 2012

S. J. Patwe ,
S. N. Achary  and
A. K. Tyagi
S. J. Patwe
Affiliation:
Applied Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
S. N. Achary
Affiliation:
Applied Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
A. K. Tyagi*
Affiliation:
Applied Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

X-ray powder diffraction data for the high temperature phase of NaBi3V2O10 obtained from in situ high temperature XRD studies are presented. NaBi3V2O10 undergoes a phase transition from triclinic to monoclinic at about 600 °C. The unit cell parameters of the high temperature monoclinic phase at 600 °C are: a=12.3899(21), b=5.5642(10), c=7.1543(18) Å and β=98.393(16)°, V=487.94(13) Å3 and Z=2, ρcal=6.20 g∕cc. On further increasing the temperature, it partially decomposes to a γ-Bi4V2O11 type phase. The details of this phase as well as the stability of NaBi3V2O10 are discussed.

Keywords

bismuth vanadatephase transitionhigh temperature XRD
Type
New Diffraction Data
Information
Powder Diffraction , Volume 20 , Issue 1 , March 2005 , pp. 51 - 57
Copyright
Copyright © Cambridge University Press 2005

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