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New Stable Iodide Glasses in the Cd-As-I and Cd-As-Ge-I Systems

Published online by Cambridge University Press:  21 February 2011

Jong Heo  and
George H. Sigel Jr.
Jong Heo
Affiliation:
Fiber Optic Materials Research Program, Rutgers, The State University of New Jersey, Piscataway, NJ 08855
George H. Sigel Jr.
Affiliation:
Fiber Optic Materials Research Program, Rutgers, The State University of New Jersey, Piscataway, NJ 08855
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Abstract

Iodide glasses presently being investigated suffer from their poor glass forming abilities, thermal instabilities and general lack of chemical durability. Glasses in the Cd-As-I and Cd-As-Ge-I systems are investigated in this study for the purpose of developing water-resistant, thermally stable iodide glasses and optical fibers. Differential scanning calorimetry(DSC) showed that glasses in these systems have glass transition temperature(Tg) values above 300°C. Devitrification of glasses during cooling and reheating can be suppressed by incorporating small amount of Ge atoms into ternary Cd-As-I glasses. They are transparent up to 14μm in the infrared region with excellent durability against liquid water at 90°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 172: Symposium P – Optical Fiber Materials and Processing , 1989 , 211
Copyright
Copyright © Materials Research Society 1990

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