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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: aktyagi@magnum.barc.ernet.in
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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

Information

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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