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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.42 [2004] >
IJPAP Vol.42(12) [December 2004] >
| Title: | Synthesis and structural characterization of Bi2O3-M2O3 (M=Dy and Pr) binary systems |
| Authors: | Ekhelikar, Srikant
Bichile, G K |
| Keywords: | Solid electrolytes
Binary solid solutions
X-ray diffraction
Lattice parameter |
| Issue Date: | Dec-2004 |
| Publisher: | CSIR |
| IPC Code: | C25B 1/00 |
| Abstract: | The binary systems
Bi2O3-Dy2O3 and Bi2O3-Pr2O3
have been investigated by doping Dy2O3 and Pr2O3
in the composition range 10 - 40 mole % prepared by ceramic method. From
the phase evolution studies of Dy2O3 doped samples, it
was observed that fluorite structured f c c phase is stabilized for the
composition range 10-40 mole %. The stability of d- phase was affected by the heat treatment temperatures. The higher
the content of dopant concentration, the higher was the sintering temperature.
The lattice parameter for Dy2O3 doped samples decreased
with the increase of dopant concentration and obeyed Vegard’s rule. From the
structural studies of Pr2O3 doped samples rhombohedral phase
was found for 10 to 30 mole % of dopant concentrations. For 40 mole % of dopant
concentration, the impurity peaks were observed in the XRD patterns along with
rhombohedral phase. The unit cell parameters for Pr2O3 doped
samples were evaluated on hexagonal settings. |
| Page(s): | 912-915 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.42(12) [December 2004]
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