Gadolinium-Induced Multi-Effect on Properties of IR Transmitting Chalcogenide Glasses
ZHAO Dong-Hui1, XIA Fang1, NIE Jia-Xiang1, CHEN Guo-Rong1, ZHANG Xiang-Hua2, MA Hong-Li2, ADAM Jean-Luc2
1School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237
2Laboratoire des Verres et Céramiques, Universite de Rennes I, 35042 Rennes cedex, France
Gadolinium-Induced Multi-Effect on Properties of IR Transmitting Chalcogenide Glasses
1School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237
2Laboratoire des Verres et Céramiques, Universite de Rennes I, 35042 Rennes cedex, France
Abstract： We introduce gadolinium in chalcogenide glasses to exert unexpectedly the multiple magical effects on both optical and thermal mechanical properties of chalcogenide glasses. Notable increases in transition temperature Tg and microhardness Hv were observed due to structural densification and microcrystallization. Calculated molar volume values, differential scanning calorimetry and x-ray diffraction measurements provide supporting evidence. Gadolinium also acts as an oxygen getter by removing or weakening oxygen-related absorption bands, which is associated with the higher negative electrode potential.
2004, Vol. 21 
