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Application of zinc fluoride, mid-infrared wide transmission waveband zinc fluoride/tellurate glass, and preparation of glass

A tellurate glass and zinc fluoride technology, applied in the field of mid-infrared luminescent glass, can solve the problems of poor light transmittance, reduce the hydroxyl content of tellurate glass, etc., and achieve the effects of low cost, excellent luminous effect, and simple preparation process

Active Publication Date: 2019-09-24
XIANGTAN UNIV
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Problems solved by technology

[0006] In order to solve the technical problem of poor light transmittance in the 3 μm (2.7-3.5 μm) wave band existing in the existing tellurite glass, the first purpose of the present invention is to provide an application of zinc fluoride, which aims to The addition of zinc reduces the hydroxyl content of the prepared tellurite glass; thereby increasing the light transmittance of the glass in the band around 3 μm

Method used

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  • Application of zinc fluoride, mid-infrared wide transmission waveband zinc fluoride/tellurate glass, and preparation of glass
  • Application of zinc fluoride, mid-infrared wide transmission waveband zinc fluoride/tellurate glass, and preparation of glass
  • Application of zinc fluoride, mid-infrared wide transmission waveband zinc fluoride/tellurate glass, and preparation of glass

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Embodiment Construction

[0044] The present invention will be further described below in combination with specific embodiments.

[0045] The group distribution ratio of each group of samples is shown in the following table 1:

[0046] Table 1

[0047]

[0048] The sample was prepared by a high-temperature solid-state reaction method, which specifically included the following steps:

[0049] 1. Raw material preparation: In order to improve the accuracy of the experiment as much as possible, we selected tellurium dioxide with a purity of 99.99% and various fluorides (zinc fluoride, lead fluoride, ytterbium fluoride, holmium fluoride, etc.) ;

[0050] 1. Calculation and weighing: Accurately weigh according to the molar percentage distribution ratio of the respective components (according to the ratio shown in Table 1), all weighing is accurate to the ten-thousandth place, that is, the fourth place after the decimal point, try to use the weighing balance High precision reduces experimental errors. ...

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Abstract

The invention belongs to the technical field of optical functional glass, and particularly provides an application of zinc fluoride. The zinc fluoride is added to a tellurate glass component as an additive in order to reduce the content of hydroxyl groups in the prepared tellurate glass and improve the transmittance of the prepared tellurate glass in the mid-infrared waveband. The invention also provides a mid-infrared wide transmission waveband zinc fluoride / tellurate glass. The mid-infrared wide transmission waveband zinc fluoride / tellurate glass comprises 50-54 mol% of TeO2, 45-49 mol% of ZnF2, 0-2.5 mol% (0 excluded and 2.5 included) of YbF3 and 0-2 mol% (0 excluded and 2 included) of HoF3. The present invention also provides a preparation method of the mid-infrared wide transmission waveband zinc fluoride / tellurate glass. The mid-infrared wide transmission waveband zinc fluoride / tellurate glass is prepared by melting at 950-1000 DEG C without a protective atmosphere and annealing at 320-340 DEG C in an air atmosphere. The functional glass of the invention has a high transmittance, and the preparation method is simple.

Description

technical field [0001] The invention relates to the technical field of mid-infrared luminescent glass, in particular to a simple preparation method of zinc fluoride / tellurite glass with a wide transmission band of mid-infrared. Background technique [0002] Mid-infrared light sources have attracted much attention due to their wide application in military and civilian fields, such as laser guidance, infrared remote sensing, toxic gas detection, medical surgery, etc. Rare earth-doped luminescent glass has high transparency and low cost. Compared with nanoparticles, it has the characteristics of easy processing and fabrication into devices, good luminescence stability, and high efficiency. Therefore, it has attracted widespread attention. [0003] Take TeO 2 -PbF 2 Oxyfluoride tellurite glass as the host has become an important mid-infrared luminescent material because of its low phonon energy and good thermochemical stability. The prior art also discloses some TeO 2 -PbF ...

Claims

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Application Information

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IPC IPC(8): C03C3/23C03C4/10C03C4/12
CPCC03C3/23C03C4/12C03C4/10
Inventor 孙立忠黄薄张振臧春阳徐昌富
Owner XIANGTAN UNIV
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