Large Scale Fluoride Glass Synthesis

M G Drexhage; L. M Cook; T. Margraf; Ray Chaudhuri

doi:10.1117/12.948186

16 January 1989 Large Scale Fluoride Glass Synthesis

M G Drexhage, L. M Cook, T. Margraf, Ray Chaudhuri

Proceedings Volume 0970, Properties and Characteristics of Optical Glass; (1989) https://doi.org/10.1117/12.948186
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

An RF heated, bottom drain furnace/crucible assembly capable of melting up to 1 liter (z4.3 kg) of fluorozirconate glass is described. The apparatus was used in conjunction with gas and oil cooled molds to prepare glass discs of the ZBLAN composition z13 cm in diameter with thicknesses of z1.2-2.5 cm. Mathematical modelling of the thermal conditions associated with the fabrication of large castings was also carried out. These calculations were used to examine the limits on casting thickness and develop engineering designs for molds capable of producing large crystal and crack-free discs.

Citation Download Citation

M G Drexhage, L. M Cook, T. Margraf, and Ray Chaudhuri "Large Scale Fluoride Glass Synthesis", Proc. SPIE 0970, Properties and Characteristics of Optical Glass, (16 January 1989); https://doi.org/10.1117/12.948186

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