Solid State Science and Technology, Vol. 69, No 2 (2010) 36-44
THE EFFECT OF DIFFERENT MOLAR RATIO CITRIC ACID AND ETHYLENE GLYCOL TO METAL CATION ON THE
CERAMICS POWDER OF Y3+ DOPED BAZRO3
Siti Noraini Abu Bakar1, Ibrahim Abu Talib1 and Nafisah Osman2
1 Faculty of Science and Technology, UKM, 43600 Bangi, Selangor, Malaysia
2 Faculty of Applied Science, UiTM, 02600 Arau, Perlis, Malaysia
Sample of BaZr0.85Zn0.05Y0.1O2.95 (BZY10) compound were prepared by the Pechini method with different molar ratios of citric acid and ethylene glycol to metal ions using metal nitrate-salts. Metal organic complexes were obtained from the polymerization process between metal nitrate, citric acid and ethylene glycol. After heated at 120 oC, a clear viscous solution or polymer resin containing metal in solid solution was formed. The resin was annealed at 3 different temperatures to remove the organic materials and produce the desired oxide powder. The powder was characterized by a Fourier Transform Infrared (FTIR), X-ray Diffractometer (XRD) and Field Emission Scanning Electron Microscope (FESEM). FTIR and XRD results showed that BaCO3 still exist even after calcined at T= 1100 ºC for 30h. The loose particles size for BZY10 powders obtained from FESEM and particle size analyzer was in the range 20−100 nm.
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