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Manufacturing method of high silica red light emitting glass

A manufacturing method and high-silica technology, applied in the field of high-silica glass, can solve problems such as unrealized breakthroughs with practical value

Inactive Publication Date: 2008-04-02
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

How to solve this problem, scientists at home and abroad have done a lot of research, but have not yet achieved a breakthrough with practical value

Method used

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  • Manufacturing method of high silica red light emitting glass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Will be decomposed equivalent to 0.4g of Eu 2 o 3 1.152g of analytically pure Eu(NO 3 ) 3 9H 2 O and Y equivalent to O.05g after decomposition 2 o 3 0.17g of analytically pure Y (NO 3 ) 3 9H 2 O, equivalent to 0.2g of V after decomposition 2 o 5 0.36g of analytically pure VOSO 4 Put it into 25 ml of 0.5 molar hydrochloric acid solution, after it is completely dissolved, put the SiO 2 The porous glass whose content exceeds 97wt% is soaked in the solution for more than 10 minutes; after that, the high-silica microporous glass doped with these ions is placed in a high-temperature furnace, and undergoes solid-state sintering at 1100°C in oxygen to eliminate Micropores become dense and transparent high-silica glass doped with various oxides at a total concentration of about 0.6%. During the sintering process, after rising from room temperature to 400°C at a speed of less than 5°C per minute, it rises to around 950°C at a speed of 10°C per minute, and then rises f...

Embodiment 2

[0019] Will be decomposed equivalent to 0.05g Eu 2 o 3 0.142g of analytically pure Eu(NO 3 ) 3 9H 2 O and Y equivalent to 0.02g after decomposition 2 o 3 0.07g of analytically pure Y (NO 3 ) 3 9H 2 O, equivalent to 0.03g of V after decomposition 2 o 5 0.05 g of analytically pure VOSO 4 Put it into 25 ml of 0.3 molar hydrochloric acid solution or aqueous solution, after completely dissolving, then put the size of 5 × 5 × 3mm, SiO 2 The porous glass whose content exceeds 96wt% is soaked in the solution for more than 10 minutes; after that, the high-silica microporous glass doped with these ions is put into a high-temperature furnace, and undergoes solid-state sintering at 1150°C in oxygen to eliminate microporous The pores become dense and transparent high-silica glass doped with various oxides at a total concentration of about 0.1%. During the sintering process, after rising from room temperature to 400°C at a speed of less than 5°C per minute, it rises to around 95...

Embodiment 3

[0021] Will be decomposed equivalent to 0.7g of Eu 2 o 3 2.0g of analytically pure Eu(NO 3 ) 3 9H 2 O and Y equivalent to 0.03g after decomposition 2 o 3 0.1g of analytically pure Y (NO 3 ) 3 9H 2 0, equivalent to 0.5g of V after decomposition 2 o 5 0.9 g of analytically pure VOSO 4 Put it into 25 ml of 1.5 molar concentration of sulfuric acid solution, after completely dissolving, then place the size of 5 × 5 × 3mm, SiO 2 The porous glass with a content of more than 98wt% is put into the solution and soaked for more than 10 minutes; after that, the high-silica porous glass doped with these ions is put into a high-temperature furnace, and undergoes solid-phase sintering at 1080°C in oxygen to eliminate micropores. It becomes a dense and transparent high-silica glass doped with various oxides with a total concentration of about 1.2%. During the sintering process, after rising from room temperature to 400°C at a speed of less than 5°C per minute, it rises to around 9...

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Abstract

A process for preparing the high-Si-O glass generating red light includes such steps as immersing the porous high-Si-O glass in the solution containing Eu, Y or Gd and V ions, and sintering at 1050-1150 deg.C in O2 atmosphere. Its advantage is high intensity of red light.

Description

technical field [0001] The invention relates to high silica glass, in particular to a method for manufacturing high silica red light emitting glass. Background technique [0002] Oxide glass has the advantages of good light transmission, chemical stability, especially low cost, and easy to make various shapes. After years of research, people have been expecting that glass luminescent materials can become high-efficiency luminescent glasses and are widely used. Applied in daily life. However, experiments have found that the luminous efficiency of luminescent ions in glass is much lower than that of crystal materials. An important reason is that these ions tend to spontaneously form clusters to produce concentration extinction during the high-temperature melting process of glass preparation. Many rare earth ions begin to produce concentration extinction at only a few hundred ppm in the oxide glass. How to solve this problem, scientists at home and abroad have done a lot of r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C4/12C03C17/27C03C3/06
Inventor 陈丹平
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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