Effect of Sintering Temperature on Microstructure and Densification of La and Ta Doped BiFeO3
T. Fakhrul, and A. Sharif. International Journal of Innovative Science and Modern Engineering (IJISME), 2 (3):
13-19(February 2014)
Abstract
The role of codoping by La & Ta and sintering conditions on the densification, phase and microstructure of BiFeO3 (BFO) ceramic have been investigated in this study. Single phase Bi0.8La0.2Fe1-xTaxO3 (BLFTO) ceramics with x = 0.0, 0.01, 0.03 and 0.05 were synthesized by the conventional solid-state reaction method. The BLFTO dried pellets were calcined at 800oC for 2 h and sintered at temperatures in the range of 875-975oC for 4h. Percent theoretical density (%TD) as high as 96.8% was attained in this research. Phase analysis by X–ray diffraction (XRD) indicated that a possible structural transition from rhombohedral to tetragonal occurred in the BLFTO ceramics. Moreover, microstructural investigation using the field emission scanning electron microscope (FESEM) showed that an increase in Ta5+ doping content to 0.05 mole fraction reduces the grain size from 6 µm in Bi0.8La0.2FeO3 to 0.8 µm in Bi0.8La0.2Fe0.95Ta0.05O3 when sintered at 975oC for 4h.
%0 Journal Article
%1 noauthororeditor
%A Fakhrul, Takian
%A Sharif, Ahmed
%D 2014
%E Kumar, Dr. Shiv
%J International Journal of Innovative Science and Modern Engineering (IJISME)
%K Bismuth Densification Doping. Ferrite Microstructure Sintering
%N 3
%P 13-19
%T Effect of Sintering Temperature on Microstructure and Densification of La and Ta Doped BiFeO3
%U https://www.ijisme.org/wp-content/uploads/papers/v2i3/C0593022314.pdf
%V 2
%X The role of codoping by La & Ta and sintering conditions on the densification, phase and microstructure of BiFeO3 (BFO) ceramic have been investigated in this study. Single phase Bi0.8La0.2Fe1-xTaxO3 (BLFTO) ceramics with x = 0.0, 0.01, 0.03 and 0.05 were synthesized by the conventional solid-state reaction method. The BLFTO dried pellets were calcined at 800oC for 2 h and sintered at temperatures in the range of 875-975oC for 4h. Percent theoretical density (%TD) as high as 96.8% was attained in this research. Phase analysis by X–ray diffraction (XRD) indicated that a possible structural transition from rhombohedral to tetragonal occurred in the BLFTO ceramics. Moreover, microstructural investigation using the field emission scanning electron microscope (FESEM) showed that an increase in Ta5+ doping content to 0.05 mole fraction reduces the grain size from 6 µm in Bi0.8La0.2FeO3 to 0.8 µm in Bi0.8La0.2Fe0.95Ta0.05O3 when sintered at 975oC for 4h.
@article{noauthororeditor,
abstract = {The role of codoping by La & Ta and sintering conditions on the densification, phase and microstructure of BiFeO3 (BFO) ceramic have been investigated in this study. Single phase Bi0.8La0.2Fe1-xTaxO3 (BLFTO) ceramics with x = 0.0, 0.01, 0.03 and 0.05 were synthesized by the conventional solid-state reaction method. The BLFTO dried pellets were calcined at 800oC for 2 h and sintered at temperatures in the range of 875-975oC for 4h. Percent theoretical density (%TD) as high as 96.8% was attained in this research. Phase analysis by X–ray diffraction (XRD) indicated that a possible structural transition from rhombohedral to tetragonal occurred in the BLFTO ceramics. Moreover, microstructural investigation using the field emission scanning electron microscope (FESEM) showed that an increase in Ta5+ doping content to 0.05 mole fraction reduces the grain size from 6 µm in Bi0.8La0.2FeO3 to 0.8 µm in Bi0.8La0.2Fe0.95Ta0.05O3 when sintered at 975oC for 4h.},
added-at = {2021-09-21T12:03:38.000+0200},
author = {Fakhrul, Takian and Sharif, Ahmed},
biburl = {https://www.bibsonomy.org/bibtex/28e6ce2cbed0ec959b9898a315933393a/ijisme_beiesp},
editor = {Kumar, Dr. Shiv},
interhash = {0cdd78aad756451de0021b27421d704d},
intrahash = {8e6ce2cbed0ec959b9898a315933393a},
issn = {2319-6386},
journal = {International Journal of Innovative Science and Modern Engineering (IJISME)},
keywords = {Bismuth Densification Doping. Ferrite Microstructure Sintering},
language = {En},
month = {February},
number = 3,
pages = {13-19},
timestamp = {2021-09-21T12:04:05.000+0200},
title = {Effect of Sintering Temperature on Microstructure and Densification of La and Ta Doped BiFeO3},
url = {https://www.ijisme.org/wp-content/uploads/papers/v2i3/C0593022314.pdf},
volume = 2,
year = 2014
}