عنوان مقاله [English]
Thermal behavior of 25% mol Yittrium – Bismuth Oxide was investigated by Differential Thermal Analysis (DTA) and X-ray Diffraction (XRD) techniques. Result showed that monoclinic (α-Bi2O3) to cubic (δ-Bi2O3) phase transformation was occurred at 750˚C and cubic phase stabilized at room temperature. Also, sintering behavior of these samples was investigated by measuring of relative density and radial shrinkage. According to these measurements the optimum temperature and time for sintering of 25% mol Y2O3 doped Bismuth Oxide were 950˚C and 36 h.