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Zinc sulfide modified chalcogenide glass and preparation method thereof

A technology of chalcogenide glass and zinc sulfide, which is applied in the field of zinc sulfide modified chalcogenide glass and its preparation, can solve the problems of poor alkali resistance and disadvantage, and achieve the effects of increasing density, improving alkali resistance and good light transmission performance.

Active Publication Date: 2021-03-05
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As 40 Se 60 The weather resistance of chalcogenide glass is an important index to investigate its application. Its water resistance and acid resistance are relatively excellent, but its alkali resistance is relatively poor, which is very unfavorable for its application.

Method used

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Examples

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preparation example Construction

[0023] One embodiment of the present invention proposes a zinc sulfide modified chalcogenide glass and a preparation method thereof, which comprises:

[0024] Mixing arsenic and selenium in a molar ratio of 40:60 to obtain a mixture, mixing the mixture with zinc sulfide in a molar ratio of 99-99.9:0.1-1, adding 1-30 ppm of an oxygen scavenger to obtain a raw material;

[0025] Mix the above-mentioned raw materials in a quartz ampoule bottle, carry out overall vacuum heating and purification at 310-350°C for 1-6h, and cool naturally to room temperature, the vacuum is less than 1×10 -2 Under the condition of Pa, the quartz ampoule is melted and sealed with an oxygen-hydrogen flame; the sealed quartz ampoule is put into a swing furnace, the melting temperature is 800-850°C, and the swing melting time is 8-40h. When the temperature is lowered to 400-450°C, the material is discharged by quenching, and then related annealing treatment is carried out to obtain zinc sulfide modified c...

Embodiment 1

[0031] One embodiment of the present invention proposes a zinc sulfide modified chalcogenide glass and a preparation method thereof, which comprises:

[0032] Arsenic and selenium were mixed in a molar ratio of 40:60 to obtain a mixture, the mixture was mixed with zinc sulfide in a molar ratio of 99.5:0.5, and 10 ppm of an oxygen scavenger was added to obtain 300 g of raw materials;

[0033] Mix the above raw materials in a quartz ampoule, carry out overall vacuum heating and purification at 310°C for 3 hours, then raise the temperature to 340°C for 30 minutes, and keep it warm for 2 hours; -3 Under the condition of Pa, the quartz ampoule is melted and sealed with hydrogen-oxygen flame; the sealed quartz ampoule is put into a swing furnace, the melting temperature is 820°C, the swing melting time is 35h, and the temperature of the furnace is lowered to 450°C During the process, the material is discharged by quenching, and then related annealing treatment is carried out to obta...

Embodiment 2

[0036] One embodiment of the present invention proposes a zinc sulfide modified chalcogenide glass and a preparation method thereof, comprising:

[0037] Arsenic and selenium were mixed in a molar ratio of 40:60 to obtain a mixture, the mixture was mixed with zinc sulfide in a molar ratio of 99:1, and 10 ppm of an oxygen scavenger was added to obtain 300 g of raw materials;

[0038] Mix the above-mentioned raw materials in a quartz ampoule, and carry out overall vacuum heating and purification at 340°C for 4 hours; when naturally cooled to room temperature, the vacuum degree is less than 7.6×10 -3 Under the condition of Pa, the quartz ampoule is melted and sealed with hydrogen-oxygen flame; put the sealed quartz ampoule into the swing furnace, the melting temperature is 810°C, the swing melting time is 30h, and the temperature of the furnace is lowered to 410°C During the process, the material is discharged by quenching, and then related annealing treatment is carried out to o...

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Abstract

The invention relates to a zinc sulfide modified chalcogenide glass and a preparation method thereof. The preparation method comprises: mixing arsenic and selenium to obtain a mixture, and mixing the mixture with zinc sulfide at a molar ratio of 99-99.9:0.1-1 , adding an oxygen scavenger to obtain a raw material; distilling and purifying the raw material, melting, quenching and discharging to obtain a zinc sulfide modified chalcogenide glass. In the zinc sulfide modified chalcogenide glass of the present invention, the metal element Zn can exist in the form of ions and As 40 Se 60 In chalcogenide glasses, As can be reduced 40 Se 60 The reaction speed of chalcogenide glass in alkaline solution can increase As 40 Se 60 Alkali resistance of chalcogenide glass.

Description

technical field [0001] The invention relates to the technical field of long-wave infrared chalcogenide glass modification, in particular to a zinc sulfide modified chalcogenide glass and a preparation method thereof. Background technique [0002] As an infrared optical material, chalcogenide glass has a wide range of transmission spectrum in the infrared band, stable photothermal characteristics, excellent chemical stability, continuously adjustable performance, low preparation cost and easy processing, and it is compatible with infrared crystal materials such as single crystal germanium. It has the advantages of complementarity in some performances. In the design of infrared optical components, the combined application of chalcogenide glass with low thermal difference coefficient and crystal material with high thermal difference coefficient and infrared optical system can greatly enrich the selection range of infrared optical materials and increase The flexibility of system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/32
CPCC03C3/321
Inventor 赵华祖成奎刘永华赵慧峰周鹏王衍行
Owner CHINA BUILDING MATERIALS ACAD
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