Influence of processing parameters on the scattering properties of fluorozirconate glasses prepared by the gas film levitation technique

• Published in: Journal of non-crystalline solids Vol. 203; pp. 143 - 152
• Main Authors: Baniel, P., Lopez, A., Gall, P., Granier, J.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01-08-1996; Elsevier
• Subjects: Brillouin and rayleigh scattering; other light scattering; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Glasses (including metallic glasses); Materials science; Materials synthesis; materials processing; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Physics; Optical fibers; Rayleigh scattering; Levitation melting; Inorganic compounds; Aluminium fluorides; Transition element compounds; Glass; Lanthanum fluorides; Fluorides; Rare earth compounds; Experimental study; Thermal stability; Zirconium fluorides; Barium fluorides; Processing parameter; Sodium fluorides
• ISSN: 0022-3093; 1873-4812
• DOI: 10.1016/0022-3093(96)00345-6

Fluoride glasses for optical fibre applications were prepared using a containerless processing technique (the gas film levitation technique) to prevent the contamination of the glass melts by the crucible. Bulk glass samples of high optical quality were obtained by starting directly from a powder mixture of the different fluoride precursors. Differential scanning calorimetry, laser scanning tomography and light scattering measurements were used to measure the properties of the levitated glasses as compared to crucible-made glasses prepared in the same conditions. The bulk levitated glasses had an extended thermal stability range along with improved optical properties over the crucible-made glasses.