Author/Authors :
Hu، نويسنده , , Xiao and Guery، نويسنده , , Guillaume and Musgraves، نويسنده , , J. David and VanDerveer، نويسنده , , Don and Boerstler، نويسنده , , Joshua and Carlie، نويسنده , , Nathan and Wachtel، نويسنده , , Peter and Raffy، نويسنده , , Simon and Stolen، نويسنده , , Roger and Richardson، نويسنده , , Kathleen، نويسنده ,
Abstract :
Fabrication of TeO2–Bi2O3–ZnO glass ceramics with high transmittance in the near infrared (NIR) region is reported in the present work. Transparent tetragonal bipyramid crystals, tens of micrometers in size, with a refractive index closely matched to that of the glass matrix were formed using a two-step heat treatment. Nucleation- and growth-like curves for this crystal phase were determined using Differential Scanning Calorimetry (DSC). The crystalline phases present in the glass ceramics were identified via x-ray diffraction as a function of heat treatment. The lowest absorption coefficient of glass ceramic is approximately 0.5/cm in the near infrared region (1.2 to 2.8 μm).
