Microstructural evaluation and characterization of solid-state reaction of B2O3 doped BaZrxTi1-xO3 ceramics
Abstract
0.5 wt. % B2O3 doped BaZrxTi1-xO3 ceramics (x = 0, 0.1, 0.2, 0.3, 0.4) were synthesized by adapting the solid-state synthesis method. B2O3 used as a sintering additive in the BT and BZT ceramics can vaporize easily at high temperatures, so it can be adopted as a vapor dopant. The influence of the substitution content on the crystallographic structure, phase transition, grain size, microstructure and physical properties of BT and BZT ceramics were discussed. Materials Pro+ image analysis software was used for the measurement of grain size of piezoelectric ceramics. XRD analysis at room temperature revealed that a structural transformation from tetragonal to rhombohedral with increasing ZrO2 content in the BT matrix. The scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) were employed to investigate the microstructures and surface-fracture morphologies of the sintered samples. The relative densities and open porosity were measured by the Archimedes' immersion method in distilled water.
Source
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETYVolume
51Issue
2Collections
- Makale Koleksiyonu [5200]
- Öksüz Yayınlar Koleksiyonu - WoS [6162]