Formation and properties of P₂O₅-BaO-Al₂O₃ system glasses Sm₂O₃ doped

With the rapid development of communication technology, laser technology and military technology, the study of functional glasses materials was noticed by research personnel in the world. The forming-regions of blank sample glasses and Sm₂O₃ doped glasses were studied by two step melting method. As a result, the forming regions would shrink with the increasing of rare earth content and the content of Sm₂O₃ was controlled in 15 mol%; the structure and absorption spectrum was study by infra-red spectrum and spectrophotometer. The experimental results provided the characteristic absorption peak of [PO₄^3-] unit was shrunk gradually and then disappeared with the increasing of Al₂O₃. At the same time, with the increasing of rare earth content there were obvious absorption peak of P-O-Sm in the absorption spectrum, the intensity of absorption peak was enhanced and transmittance.