Low Temperature Sintering of (1-x-y)BaTiO3-xBiFeO3-yKVO3 Composition
M. Andansari1, F. Latief1, U. Nuraini1, S. Suasmoro1*
1Departement of Physics, Faculty of Sciences
Institute of Technology Sepuluh Nopember, Surabaya 60111 Indonesia
*suasm[at]its.ac.id
Abstract
In this study, the composition of (1-x-y)BaTiO3-xBiFeO3-yKVO3 (x = 0.15 ; y = 0.01 and 0.025) were successfully synthesized using a calcination at 700°C for 2 hours of mixed BaTiO3, KVO3 and BiFeO3. Previously, BaTiO3 (BT), KVO3 (KV), and BiFeO3 (BFO) powders were each synthesized through oxalate coprecipitation, solid state reaction, and sol-gel self-combustion method respectively. Phase identification was carried out through X-ray diffraction match software, and further refinement analysis using Rietica software. SEM/EDX analysis was completed for the microstructure characterization, while the impedance complex analysis are used to determine its electrical properties. XRD pattern clarify the absence of the secondary phase in both compositions after calcination, however after sintering the secondary phase Ba3V2O8 was detected. Furthermore, the substitution of 1 mol% and 2.5 mol% doped KV successfully reduce the sintering temperature become ≈1050°C from generally reported 1300⁰C-1400⁰C [1].
Keywords: Barium Titanat, Dielectric, Low Temperature Sintering
Topic: Synthesis and Characterization Techniques