| Effect of Sintering Temperature and Duration on the
Formation of Single-Phase Pb0.9Bi0.1Fe0.55Nb0.45O3
Solid Solution |
Sunanda T. Dadami,1 Shidaling Matteppanavar,1 I. Shivaraja,1 Sudhindra Rayaprol,2
M. V. Murugendrappa3 and Basavaraj Angadi1,*
pages: 181-184
DOI : 10.1080/0371750X.2016.1210023 |
| Abstract |
| Effect of sintering temperature and duration on single phase formation and structural
properties of Pb0.9Bi0.1Fe0.55Nb0.45O3 (PBFNO) solid solution was investigated. The
single step solid state reaction method was adopted to achieve the pure perovskite
phase. Calcination was carried out at 700oC for 2 h and sintering at different
temperatures as 800o, 850o, 900o, 950o, 1000o and 1050oC for 1 h and also at 800oC for
1-5 h to achieve the single phase in PBFNO solid solution. From the X-ray diffraction
studies, it was found that sintering at 800oC for 3 h was optimum for achieving single
phase and all the other conditions showed an impurity phase. Rietveld refinement
was carried out on single phase PBFNO solid solution by using FullProf Suite, which
confirmed the monoclinic structure with Cm space group and the obtained refinement
parameters were Rp=15.7; Rwp=20.7, Rexp=16.72, 2(Chi2)=1.54. The lattice parameters
were: a=5.666(3) Å, b=5.667(4) Å, c=4.017(2) Å and ==90o, =89.943(4)o. Scanning
electron micrograph showed an average grain size of ~2 m with uniform morphology.
All the results clearly revealed the significance of low temperature and short duration
sintering to control the single phase in PBFNO solid solution.
[Keywords: Multiferroic, Single phase, X-ray diffraction, PbFe0.5Nb0.5O3 (PFN), BiFeO3
(BFO)] |
| Full text : Subscribe to Download Full Text |
| [Go Back] |
|
