Fabrication of Sn4+ doped Ba(Mg1/3Ta2/3)O3 transparent ceramics by a solid state reaction method

Transparent disordered BMT ceramics were obtained by solid state reaction. Sn4+ ions were incorporated to make the B site of the perovskite structure disordered. The stoichiometric powder mixture with and without Sn doping was calcinated at 1300 °C, respectively and they were both characterized. After dry pressing, the pellets with Sn doping were sintered at 1600 °C in oxygen atmosphere for 4 h. The grain size of the transparent ceramics is around 12 μm. No pores were detected in or among the grains. The inline transmittance of the material is 66% at 580 nm. The refractive index is 2.09 at 1600 nm.