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Chalcohalide glass and preparation method thereof

A technology of sulfur halide glass and glass, which is applied in the field of sulfur halide glass and its preparation, to achieve the effects of improved light transmission, environmental friendliness, and low cost

Active Publication Date: 2015-03-11
NANJING WAVELENGTH OPTO ELECTRONICS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many applications (such as multi-band imaging and multi-band remote sensing), multi-band transmission materials are usually required to have good light transmission in the above-mentioned atmospheric window (especially the entire 8-12 μm window), and there is no sulfur-based material that meets this requirement. Reports about glass

Method used

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  • Chalcohalide glass and preparation method thereof
  • Chalcohalide glass and preparation method thereof
  • Chalcohalide glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 0.3Ga 2 S 3 -0.5Sb 2 S 3 -0.2CsI glass preparation

[0029] Prepare a glass mixture with Ga, Sb, S with a purity ≥99.999% and CsI with a purity ≥99.9% in proportion, put the glass mixture into a clean quartz ampoule with a hydroxyl content of less than 5ppm, and vacuum until the vacuum degree is less than 10 -2 Pa, the quartz ampoule was sealed with an oxyhydrogen flame. Put the sealed quartz ampoule containing the glass mixture into a swing furnace, raise the temperature to 900°C and keep it warm for 12 hours, take it out and quench it in water; Rate cooling to room temperature, that is, get 0.3Ga 2 S 3 -0.5Sb 2 S 3 -0.2CsI glass.

[0030] figure 1 with figure 2 These are the photos of the glass of this embodiment taken by an ordinary visible light camera and an infrared camera with a working wavelength of 7.5-13 μm. Through the glass of this embodiment, the characters and iron wires placed behind the glass can be clearly seen respectively.

[0031] The de...

Embodiment 2

[0034] 0.3Ga 2 S 3 -0.3Sb 2 S 3 -0.4CsBr glass preparation

[0035] Prepare glass mixture with Ga, Sb, S with purity ≥99.999% and CsBr with purity ≥99.9% in proportion, put the glass mixture into a clean quartz ampoule with hydroxyl content less than 5ppm, and vacuum until the vacuum degree is less than 10 -2 Pa, the quartz ampoule was sealed with an oxyhydrogen flame. Put the sealed quartz ampoule containing the glass mixture into a swing furnace, raise the temperature to 875°C and keep it warm for 18 hours, take it out and quench it in water; Rate cooling to room temperature, that is, get 0.3Ga 2 S 3 -0.3Sb 2 S 3 -0.4CsBr glass.

[0036]The density of the glass was tested by the Archimedes method; the glass transition temperature of the glass was tested by the TAQ2000 differential scanning calorimeter, and the heating rate was 10°C / min; the hardness of the double-sided polished glass sheet was tested by the INSTRON Wilson-Wolpert Tukon 2100B hardness tester Microha...

Embodiment 3

[0039] 0.3Ga 2 S 3 -0.1Sb 2 S 3 -0.6CsCl glass preparation

[0040] Prepare Ga, Sb, S with a purity of ≥99.999% and CsCl with a purity of ≥99.9% to prepare a glass mixture in proportion, put the glass mixture into a clean quartz ampoule with a hydroxyl content of less than 5ppm, and vacuum until the vacuum degree is less than 10 -2 Pa, the quartz ampoule was sealed with an oxyhydrogen flame. Put the sealed quartz ampoule containing the glass mixture into a swing furnace, raise the temperature to 850°C and keep it warm for 24 hours, take it out and quench it in water; Rate cooling to room temperature, that is, get 0.3Ga 2 S 3 -0.1Sb 2 S 3 -0.6CsCl glass.

[0041] The density of the glass was tested by the Archimedes method; the glass transition temperature of the glass was tested by the TAQ2000 differential scanning calorimeter, and the heating rate was 10°C / min; the hardness of the double-sided polished glass sheet was tested by the INSTRON Wilson-Wolpert Tukon 2100B ...

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Abstract

The invention discloses chalcohalide glass and a preparation method thereof. The chemical formula of the chalcohalide glass is (1-x-y)Ga2S(3-x)Sb2S(3-y)CsA, wherein A is Cl, Br or I, x is not less than 0.1 and not greater than 0.5, and y is not less than 0.20 and not greater than 0.60. The preparation method comprises the following steps: (1) preparing a glass mixture by taking elemental gallium, elemental stibonium, elemental sulfur and a compound CsA as raw materials; (2) placing the glass mixture in a quartz ampoule, keeping the temperature of 850-900 DEG C for 12-24 hours, smelting, taking out and quenching the glass mixture to form glass; (3) controlling the formed glass at 220-250 DEG C for 4-6 hours for annealing, and finally cooling the glass to room temperature at the velocity of 0.1-0.4 DEG C per minute. The chalcohalide glass has excellent light transmission in a range of 0.6-12 [mu]m, low cost and environmental-friendliness, and is hopeful of having the application in the field of transmitting lights from the wave band of visible light to long wave infrared light band of 12 [mu]m.

Description

technical field [0001] The invention relates to an optical glass material, in particular to a sulfur halide glass and a preparation method thereof. Background technique [0002] Chalcogenide glass is an amorphous material formed by introducing a certain amount of other metal or non-metallic elements into the main chalcogen elements sulfur, selenium and tellurium, including sulfide glass, selenide glass and telluride glass. Their typical light transmission range They are 0.6-10 μm, 1-14 μm and 2-20 μm, respectively. After introducing halides into chalcogenide glasses, the short-wave absorption edge of the glass usually blue-shifts, while the infrared cut-off edge does not change significantly, which broadens the light transmission range of the glass to the short-wave direction. This type of glass based on chalcogen and halogen The glass is called sulfur halide glass. [0003] Partial sulfur-halogen glass has excellent light transmission in visible light, 1-3 μm, 3-5 μm and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/32
Inventor 杨志勇杨安平张鸣杰张斌任和郭威杨艳王荣平唐定远
Owner NANJING WAVELENGTH OPTO ELECTRONICS SCI & TECH CO LTD
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