Open AccessPreparation and Characterization of Transparent Glass Ceramics Containing Na3Gd(PO4)2
Author(s) -
Xi Chen,
Hongbo Zhang,
Xiangyu Zou,
Chunhui Su
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/678/1/012082
Subject(s) - differential scanning calorimetry , materials science , scanning electron microscope , crystallization , transmittance , ceramic , fourier transform infrared spectroscopy , analytical chemistry (journal) , crystal (programming language) , refractive index , glass ceramic , phase (matter) , mineralogy , composite material , chemical engineering , chemistry , chromatography , physics , optoelectronics , organic chemistry , computer science , engineering , thermodynamics , programming language
Transparent glass ceramics with the mole percent composition of 21.3Na 2 CO 3- 2.2Gd 2 O 3 -38SiO 2 -36.5H 3 BO 3 -2.0P 2 O 5 were prepared by melting crystallization method. The heat treatment system, crystal phase, micromorphology and transmittance of the samples were tested and characterized by differential scanning calorimetry analysis(DSC), X-ray diffraction (XRD), scanning electron microscopy(SEM) and UV-Vis-NIR, respectively. The optimum heat treatment condition is 730°C for 2h. The Na 3 Gd(PO 4 ) 2 crystal phase were precipitated homogeneously among the glass matrix. The results of FTIR spectra confirmed the presence of PO 4 groups in the glass ceramics samples. The refractive index of glass ceramics and glass samples were measured. In the visible region, the transmittance of glass ceramics is up to 80%.