Health & Environmental Research Online (HERO)


Print Feedback Export to File
7151756 
Journal Article 
Determination of Optimum Parameter for Electrical Poling Treatment on BaTiO3 Piezo-Ceramic using Home-Built System 
Jamil, NorHBJ; Jumali, MHbinH; Zainuddin, ZB; Izzuddin, IB; Pojprapai, S; , 
2019 
0 
Sains Malaysiana
ISSN: 0126-6039 
UNIV KEBANGSAAN MALAYSIA 
SELANGOR 
425-433 
WOS:000461019900021 
This study has been conducted to determine the optimum value for poling treatment parameters of BaTiO3 as piezoceramic material using a home-built DC poling system. The three main poling parameters that has been studied were electric field (E-p), temperature (T-p) and time (t(p)) treatments. Single phase BaTiO3 piezo-ceramic stabilized in tetragonal structure was successfully prepared using conventional solid-state sintering. The selection range of E-p and T-p for poling treatment were based on prior ferroelectric hysteresis measurement and determination of Curie temperature, T-c tests, respectively. The results showed that BaTiO3 has low coercive field, E-c (similar to 2.42 kV/cm), remanent polarization, P-r similar to 4.90 mu C/cm(2) and large maximum polarization, P-m (similar to 17.59 mu C/cm(2)) values with T-c of 139 degrees C. Based on the studied parameter ranges, the highest piezoelectric constant, d(33) value similar to 190 pC/N was obtained with poling electric field magnitude of 1.5E(c) at 60 degrees C for 10 min. Structure and morphology BaTiO3 after poling treatment were also investigated. Developed poling system effectively reorient the domain alignments and the optimum treatment parameters were comparable with other BaTiO3 studies.