عنوان مقاله [English]
75% mol Bi2O3 – 25% mol Y2O3 has the highest conductivity in Bi2O3 - Y2O3 system. This compound will create δ-Bi2O3 cubic phase due to sintering at high temperatures. The mixtures were prepared by solid state reaction technique. After preparing granules, Experimental samples were fabricated by uniaxial pressing and followed isostatic pressing, then samples have sintered at 950°C for 36 h. X-ray diffraction (XRD) analyses detected δ-Bi2O3 as the sole stable phase in all samples. Also, the annealing process was carried out on samples at 600°C duration between 72 to 300 h. X-ray diffraction (XRD) analyses on samples detected that the δ-Bi2O3 phase transfer to rhombohedral phase.