Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Chalcohalide glasses ceramic having broadband optical window and preparation method thereof

A technology of optical window and sulfur-halogen glass, which is applied in the field of optical window glass-ceramic materials, can solve the problems of poor mechanical properties and inability to cover the 0.4-0.6 band, and achieve the effects of improving mechanical properties and simplifying complex photoelectric detection systems

Inactive Publication Date:
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, the transmission window of the sulfur-halogen glass is 0.6-14 μm, which cannot cover the 0.4-0.6 band of the visible window.
[0008] Chalcohalogen Glass GeS for Broadband Optical Window 2 -In 2 S 3 -KCl (Materials Letters, 2006, 60(6) 741-745), the transmission window is 0.4-11.5 μm, which can cover the entire visible window, near-infrared (1.4-1.9 μm), mid-infrared (3-5 μm), far Infrared (8 ~ 12μm), but the mechanical properties are poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Chalcohalide glasses ceramic having broadband optical window and preparation method thereof
  • Chalcohalide glasses ceramic having broadband optical window and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]A sulfur-halogen glass ceramic with a broadband optical window, its composition is shown in Table 1, 55GeS 2 ·15In 2 S 3 · 30CsCl, 55, 15, 30 are the mole percentage of each compound.

[0035] The specific preparation method is as follows:

[0036] 1). Select raw materials: according to 55GeS 2 ·15In 2 S 3 30CsCl, 55, 15, and 30 are the molar percentages of each compound, select elemental Ge, In, S and compound CsCl raw materials, the purity of elemental Ge, In, S, and CsCl are respectively ≥ 99.999% (mass), and set aside;

[0037] 2). In an environment full of inert gas, mix Ge, In, S and compound CsCl raw materials, grind and mix to make batches, put them in a container and vacuumize, the vacuum degree is 10 -4 ~10 -6 Pa, then seal the container and place it in a heating device;

[0038] 3). Preparation of the basic glass: heat the container containing the batch material in step 2), first slowly raise the temperature to 595°C-605°C at a rate of less than 1°C / mi...

Embodiment 2

[0042] A sulfur-halogen glass-ceramic with a broadband optical window, its composition is shown in Table 1.

[0043] The specific preparation method is as follows:

[0044] 1). Carry out according to Embodiment 1 of 1);

[0045] 2). Carry out according to embodiment 1 of 2).

[0046] 3). Carry out according to embodiment 1 of 3).

[0047] 4). Put the basic glass sheet prepared in step 3) into a crystallization furnace, raise the temperature to 270°C, keep the temperature for 6 hours, and carry out nucleation; then increase the temperature to 300°C, keep the temperature for 1 hour, and complete the crystallization; Lower the temperature to 240-280°C, keep the temperature constant for 0.5-3 hours, eliminate stress, cool down with the furnace, release from the furnace, and polish to get the finished product.

[0048] The optical transmission window of the prepared sulfur-halide glass-ceramic is 0.4-11.5 μm, and the anti-crack expansion ability is 6 times that of the existing s...

Embodiment 3

[0050] A sulfur-halogen glass-ceramic with a broadband optical window, its composition is shown in Table 1.

[0051] The specific preparation method is as follows:

[0052] 1). Carry out according to Embodiment 1 of 1);

[0053] 2). Carry out according to embodiment 1 of 2).

[0054] 3). Carry out according to embodiment 1 of 3).

[0055] 4). Put the basic glass sheet prepared in step 3) into a crystallization furnace, raise the temperature to 290°C, keep the temperature for 16 hours, and carry out nucleation; then increase the temperature to 330°C, keep the temperature for 1 hour, and complete the crystallization; Lower the temperature to 240-280°C, keep the temperature constant for 0.5-3 hours, eliminate the stress, cool down with the furnace, release from the furnace, and polish to get the finished product.

[0056] The optical transmission window of the prepared sulfur-halide glass-ceramic is 0.4-11.5 μm, and the anti-crack expansion ability is four times that of the ex...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a chalcohalide glass ceramics with broadband optical window, which is characterized in that the chemical formulation of the composition of the chalcohalide glass ceramics is: (100%-x-y)GeS2-yIn2S3-xMCl, wherein, x is the molar percentage of MCI, y is the molar percentage of In2S3, and (100%-x-y) is the molar percentage of GeS2; wherein x is 30-50% (mole) and y is 15-25% (mole); MCl is one of or a mixture of two or more of NaCl, KCl, RbCl and CsCl; when the mixture comprises more than two components, the mixture is at any ratio. The chalcohalide glass ceramics prepared by the invention has higher transmittance inside the whole wave band range from 0.4 Mum to 11.5 Mum and covers the whole visible light window and three ordinary infrared atmospheric windows; compared with the prior chalcohalide glass, the mechanical performance of the chalcohalide glass ceramics is obviously improved; the chalcohalide glass ceramics can also used for realizing multi-windows and common aperture, thereby simplifying the current complicated photoelectric detection system.

Description

technical field [0001] The invention relates to a glass ceramic with a broadband optical window and a preparation process thereof, belonging to the field of optical window glass ceramic materials. Background technique [0002] Atmospheric window refers to the range of optical radiation with high transmittance that passes through the atmosphere and is less reflected, absorbed or scattered (such as figure 1 shown). Atmospheric window detection bands currently used mainly include the following bands: visible light (0.4-0.7 μm), near-infrared (1.4-1.9 μm), mid-infrared (3-5 μm), far-infrared or thermal band (8-12 μm). [0003] Due to the limitations of detectors and other factors, at the beginning, each of the above-mentioned bands needs to build an independent detection system in application. If a detection system can obtain target information in multiple bands of the above-mentioned atmospheric window, then the system can obtain more target information more accurately and re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/16C03B32/02
Inventor 陶海征藏浩春林常规赵修建
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com