Crystallization Characteristics of ZrF_4-Based Fluoride Glasses in Cooling and Reheating Processes
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概要
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Crystallization kinetics of ZrF_4-based fluoride glasses in melt-cooling and reheating processes have been investigated by calorimetry. Critical cooling rates for glass-formation are estimated using the relation between undercooling and cooling rate. Kinetic parameters of crystallization in reheating are obtained just above deformation temperatures using the Avrami equation. It has been found that a ZrF_4-BaF_2-LaF_3-YF_3-AlF_3-LiF glass shows high stability against crystallization in both cooling and reheating. An optical fiber has been fabricated from this glass, having a loss of 3.8 dB/km at a wavelength of 2.55 μm.
- 社団法人応用物理学会の論文
- 1985-09-20
著者
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Takahashi Shiro
Ntt Ibaraki Electrical Communication Laboratory Nippon Telegraph And Telephone Corporation
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Kanamori Terutoshi
Ntt Ibaraki Electrical Communication Laboratory Nippon Telegraph And Telephone Corporation
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Kanamori Terutoshi
NTT, Ibaraki Electrical Communication Laboratory, Nippon Telegraph and Telephone Corporation
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Takahashi Shiro
NTT, Ibaraki Electrical Communication Laboratory, Nippon Telegraph and Telephone Corporation