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Preparation method of high-purity chalcogenide infrared glass

A technology of infrared glass and uniformity, applied in the field of infrared glass materials, can solve the problems of long-term mixing and the generation of component stripes, and achieve the effects of reducing energy consumption, eliminating component stripes, and shortening mixing time.

Inactive Publication Date: 2016-04-20
北京玻璃研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the shortcomings of the existing chalcogenide glass preparation method that requires long-time mixing and component streaks during the mixing process, the present invention provides a fast and high-uniform mixing method

Method used

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  • Preparation method of high-purity chalcogenide infrared glass
  • Preparation method of high-purity chalcogenide infrared glass

Examples

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Embodiment

[0021] Implementation example: chalcogenide glass composition is As 38 S 62

[0022] Using high-purity sulfur with a purity of 5N and high-purity arsenic with a purity of 6N as raw materials, according to the above-mentioned chemical composition ratio, weigh the materials in a glove box filled with argon, and fill them with pre-cleaned and pre-calcined hydroxyl content lower than In the 10ppm quartz distillation tubes A and B, pass high-purity argon gas into the distillation tubes and connect with the quartz spiral tube with a hydroxyl content lower than 10ppm, and heat the distillation tubes A and B to 425°C and 600°C respectively, so that the gaseous The S and As simple substances are fully mixed at the molecular scale in a spiral tube heated to 650°C, and then the mixed gaseous As-S infrared glass frit is passed into a cleaned and pre-fired quartz ampoule with a hydroxyl content lower than 10ppm Condensation; vacuumize the quartz ampoule containing the mixture, when the v...

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Abstract

The invention discloses a preparation method of high-purity chalcogenide infrared glass which is a distillation-co-condensation method, and belongs to a preparation method of chalcogenide glass. The method comprises: using high-purity argon as power to drive different activated materials to mix in a molecular form in a quartz spiral tube, and condensing in a quartz ampoule; evacuating and sealing the quartz ampoule and then placing in a rocking furnace for rocking, and cooling and annealing to obtain the high-purity chalcogenide infrared glass. The infrared glass prepared by the invention is free of composition stripes due to non-uniform mixing in a mixing process, average transmittance (@2-6 Mum) of the infrared glass is greater than 70 %, and the prepared high-purity chalcogenide glass is 0.25 dB / m in lowest loss.

Description

technical field [0001] The invention relates to an infrared glass material, in particular to a high-purity raw material mixing method in the preparation process of high-uniformity sulfide infrared glass. 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 0.6~10μm, 1~14μm and 2~20μm respectively. In the chalcogenide glass fiber, the As-S infrared glass fiber is a good transmission medium in the 1-6 μm band, with low intrinsic loss and relatively good fiber-forming ability. It is currently the best transmission in the second atmospheric window in the 3-5 μm mid-infrared band waveguide. In foreign countries, it has been widely used in spectroscopy, thermal imaging, laser energy transmission, sensing, infr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/32C03C4/10C03B1/00
CPCC03C3/321C03B1/00C03C4/10
Inventor 曹玉超杭利军郭永解范大恩杨天让
Owner 北京玻璃研究院有限公司
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