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Optical Properties and Glass-forming Region of the K2O-Sm2O3-TeO2 Glass System
K. S. Hong,Y. J. Cha,M. G. Ha,최세용,J. P. Kim,B. S. Lee,정의덕,김현규,P. H. Borse 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.65 No.9
The optical properties and the glass-forming region of the K2O-Sm2O3-TeO2 glass system arestudied. In the K2O-Sm2O3-TeO2 system, only the 5K2O-5Sm2O3-90TeO2 composition gives atransparent glass. The refractive index, n, and the optical band-gap energy, Eg, of the 5K2O-5Sm2O3-90TeO2 glass are n = 2.04 ± 0.003 and Eg = 3.2 eV, respectively. A single Sm2Te6O15phase is found to be formed by a two-step thermal treatment process at 370 C for 5 h and 390 Cfor 5 h. This is the first report on the crystallization and the preparation of the K2O-Sm2O3-TeO2glass system.