Thermal and Optical Properties of High Refractive Index xNb2O5-(1-x)La2O3 Glasses Prepared by Aerodynamic Levitation Method
Bulk glasses of xNb2O5–(1-x)La2O3 (NL) with high refractive index were prepared by aerodynamic levitation method.Only when x ranges from 0.62 to 0.72,NL glasses can be obtained.The effect of compositions on the thermal property and refractive index was investigated.The results indicated that the glass transition temperature ranged from 733 ℃ to 767 ℃ with the increasing of La2O3 in NL glasses,while the crystallization peak ranged from 811 ℃ to 837 ℃.The glasses had high refractive index ranging from 2.26 to 2.31.According to the Drude-Voigt relationship,the Abbe number of the glasses was calculated to be about 20.This type of glass was colorless and transparent in the region from visible to infrared region.Thus,the niobate glass system has promising application in lenses,next-generation optical disk,and endoscopes.
High refractive index Thermal stability Aerodynamic levitation
Yuxing Cheng Guisheng Xu Jianding Yu Xiuhong Pan Minghui Zhang Yan Liu
State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics, Chinese Academy of Sciences,1295 Dingxi Road, Shanghai 200050, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
255-259
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）