2015 : PENGARUH PENAMBAHAN VANADIUM OKSIDA (V2O5) TERHADAP STRUKTUR KRISTAL Ba 0.9 Ca0. 1TiO3

Prof. Dr. Suasmoro


Abstract

Barium calsium titanate (BCT) is one of perovskite’s crystal structure and has polimorfism to temperature. Composition of BCT was synthesized via oxalate coprecipitation precursor. The powder was V 5+ doped by 0; 0.5 and 1 mole%. It was analyzed by thermal analysis. Single phase of BCT was formed at calcination temperature 700 0 C for 2 hours. The powder was compacted and pelleted. To decrease porous sample sintered at temperature 1300 0 C for 2 hours. Vanadium doped can decrease temperature of sinter to be 1250 0 C. The influences of dopant on samples were analyzed by XRD. Tetragonallity of sample that undoped is 1.0031 and doped V 5+ 0.5% is 1.0026 and doped V 5+ 1% is 1.0019. Characterization on crystal structure show that V 5+ subtituted into Ti 4+ sites to form single phase of BCT.