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Fluorozirconate glass containing tellurium dioxide

A technology of fluorozirconate and glass, applied in the field of fluorozirconate glass containing tellurium dioxide

Inactive Publication Date: 2005-09-28
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problems of the existing fluorozirconate glass, and to provide a fluorozirconate glass containing tellurium dioxide, which basically maintains pure fluoride without compromising its chemical stability. Infrared performance of glass, improving the glass-forming performance of fluorozirconate, and obtaining large-size infrared glass

Method used

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  • Fluorozirconate glass containing tellurium dioxide
  • Fluorozirconate glass containing tellurium dioxide

Examples

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Embodiment Construction

[0017] figure 1 Respectively the embodiment of the present invention 6 (TZF1) and pure fluoride composition 57ZrF 4 ·34BaF 2 4.5LaF 3 4.5AlF 3 (ZF1) Differential thermal (DTA) curves of the prepared glass. Among them, the ΔT of the glass corresponding to the TZF1 curve is 80°C, and the S is 6.78; while the ΔT of the glass corresponding to the curve ZF1 is 100°C, and the S is 12. Larger ΔT (ΔT=T x -T g ) and S(S=(Tx-Tg)(Tp-Tx) / Tg) values ​​indicate that TZF1 has better glass-forming properties than ZF1, and is suitable for preparing large-scale infrared materials.

[0018] figure 2 It is the transmittance curve of the glass sample (sample thickness: 6mm) in Example 6 of the present invention at 0.3-7.0um. It can be seen from the figure that the fluorozirconate glass containing tellurium dioxide of the present invention has good transmittance from near ultraviolet to mid-infrared.

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Abstract

The fluorozirconate glass containing tellurium dioxide has the main components of TeO2 2-12 mol%, ZrF4 45-60 mol%, BaF2 25-35 mol%, and LaF3+AlF3+YF3 5-11 mol%. This kind of glass has very high transparency in the wavebands from near ultraviolet to middle infrared. Compared with available fluoride glass, the present invention has better chemical stability and better formation performance, and is suitable for making large size infrared material.

Description

technical field [0001] The present invention relates to fluorozirconate glass, especially a kind of fluorozirconate glass containing tellurium dioxide. It is characterized by high transmission in the near-ultraviolet to mid-infrared band, and high resistance to devitrification, and can be made into large-sized optical materials. Background technique [0002] Fluoride glass has a wide range of optical application prospects, such as the preparation of infrared window materials, ultra-low loss optical fibers, optical waveguides, optical fiber amplifiers, etc. The study of large-size fluoride glasses with good chemical stability has always been a hotspot in the research of fluoride glasses. ZrF 4 Fluoride glass, which is the main component of glass, is called fluorozirconate glass. Compared with other fluoride glasses, fluorozirconate glass not only has good formability, but also has excellent optical properties, and is the main fluoride glass matrix for preparing fluoride op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/23C03C4/00C03C4/10C03C4/20
CPCC03C4/10C03C4/20C03C4/0085C03C3/23
Inventor 胡和方袁新强
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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