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Preparation of Ge–Sb–Se glass fibers with excellent bending properties by the pulsated orifice ejection method

Wenlong Xu,Wenlong Xu,Yongchang Guo,Yongchang Guo,Yongchang Guo,Can Li,Can Li,Jie Fu,Jie Fu,Zhibiao Ma,Zhibiao Ma,Zhifan Hao,Zhifan Hao,Hui Wang,Hui Wang,Hui Wang,Haizheng Tao,Jianqiang Li,Jianqiang Li,Jianqiang Li,Jianqiang Li

We have innovatively introduced the pulsated orifice ejection method into the preparation of glass fibers, successfully preparing high-purity Ge28Sb12Se60 glass fibers. These fibers have a smooth surface, uniform elemental distribution, and excellent bending properties, with a minimal bending radius of 2 mm. In the infrared spectrum from 2.5 to 13.5 µm, the fibers achieve 65% transmission. Additionally, the fibers possess a density of 4.586 g/cm3, a diameter of 35 µm, a glass transition temperature (Tg) of 369°C, and an onset crystallization temperature (Tx) of 557°C. We have also measured the surface tension of the glass fibers, finding values from 0.288 N/m to 0.124 N/m as temperatures rose from 450°C to 500°C. The POEM holds the potential to achieve fiber cores of lengths up to hundreds of meters in theory. Our work provides a distinctive perspective for the preparation of glass fibers.