Synthesis and study on phase diagram of 1-10 mol% SnO_2-doped Bi_2O_3

摘要

Bi_2O_3 materials doped with various SnO_2 concentrations were prepared by colloidal process and solid state reactions to achieve high density and uniform microstructure. Thermal behavior, and crystalline phases of the Sn02-doped Bi_2O_3 (BSO) samples were investigated by differential thermal analyses, X-ray diffraction, and scanning electron microscopy. A new phase diagram of Bi_2O_3-(1-10 mol%) SnO_2 system is proposed in this study. The results show that 1 mol% SnO_2 doped concentration is totally dissolved in Bi_2O_3 without the existence of any impurity phases as compared to higher doping SnO_2 concentration.