The strengths of as‐drawn, abraded, and pristine Se, As2Se3, As2S3, and Ge30As15Se55 fibers are reported. Pristine strength values range from an average of 80 MPa for Se and Ge30As15Se55 to 100 and 180 MPa for As2Se3 and As2S3, respectively. Although these values are considerably higher than those reported previously for bulk samples, in no case does the maximum observed strength reach more than about 6% of that expected from simple theoretial calculations. Several factors that can control the strength are discussed. The overall behavior is interpreted in terms of the glass structures which permit localized stress relaxation effects in regions of weak, nondirectional bonds. These effects occur at temperatures well below the glass‐transition region.
Optical and mechanical properties of commercially available chalcogenide glasses (Asse, AsGeSe, AsGeSeTe and SbGeSe) are reported.The measured optical properties include: bulk transmittance (between 0.5 and 25 um) and the attenuation (at 10.6 um) of core and optically clad fibers. The measured mechanical properties include: bending and tensile strength testing of coated, uncoated, core and optically clad fibers.In addition to the measured physical characteristics, some potential applications of chalcogenide fibers are mentioned.
The historical use of induction heating relating to glass melting gives some insight into its use in today's glass manufacturing industry. A patent search on induction heating provides historical information about how induction heating was used in the glass melting industry, from both a direct fired or a susceptor/container approach. This article provides review of historical patents, following an introduction to conductivity in glass and electrical heating. The purpose is to show that induction heating has been and is being used in the glass melting industry.
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