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Phosphate laser glass surface enhancement processing method

A technology of laser glass and processing method, applied in the field of surface treatment of phosphate laser glass or phosphate laser glass, can solve problems such as inability to achieve corrosion effect, improve repetition frequency and thermal damage threshold, reduce roughness, reduce surface Effects of Roughness and Defects

Inactive Publication Date: 2015-04-22
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a single acid corrosion treatment method is widely used, which cannot achieve a good corrosion effect

Method used

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  • Phosphate laser glass surface enhancement processing method
  • Phosphate laser glass surface enhancement processing method
  • Phosphate laser glass surface enhancement processing method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] Strong acid system:

[0039] Composition mol%

[0040] h 2 SO 4 (phosphoric acid) 0.00%

[0041] HClO 4 (perchloric acid) 100.00%

[0042] Complexing agent system:

[0043] Composition mol%

[0044] (NaPO 3 ) 6 (sodium hexametaphosphate) 0.00%

[0045] NH 4 F (ammonium fluoride) 100.00%

[0046] The mixed acid is composed of a strong acid system, a complexing agent system and pure water in a molar ratio of 5:1:5.

[0047] Strong base system:

[0048] Composition mol%

[0049] KOH (potassium hydroxide) 0.00%

[0050] NaOH (sodium hydroxide) 100.00%

[0051] Complexing agent system:

[0052] Composition mol%

[0053] EDTA (ethylenediaminetetraacetic acid) 0.00%

[0054] K 2 CO 3 (potassium carbonate) 100.00%

[0055] The mixed acid-base is composed of a strong base system, a complexing agent system and pure water, and the molar ratio range of the three is: 5:1:1.

[0056]Surface treatment steps:

[0057] Step 1: Put the finely ground phosphate laser...

no. 2 example

[0063] Strong acid system:

[0064] Composition mol%

[0065] h 2 SO 4 (sulfuric acid) 20.00%

[0066] HClO 4 (perchloric acid) 80.00%

[0067] Complexing agent system:

[0068] Composition mol%

[0069] (NaPO 3 ) 6 (sodium hexametaphosphate) 30.00%

[0070] NH 4 F (ammonium fluoride) 70.00%

[0071] The mixed acid is composed of a strong acid system, a complexing agent system and pure water in a molar ratio of 5:1:10.

[0072] Strong base system:

[0073] Composition mol%

[0074] KOH (potassium hydroxide) 25.00%

[0075] NaOH (sodium hydroxide) 75.00%

[0076] Complexing agent system:

[0077] Composition mol%

[0078] EDTA (ethylenediaminetetraacetic acid) 30.00%

[0079] K 2 CO 3 (potassium carbonate) 70.00%

[0080] The mixed alkali is composed of a strong alkali system, a complexing agent system and pure water, and the molar ratio range of the three is: 5:1:2

[0081] Surface treatment steps:

[0082] Step 1: Put the finely ground phosphate laser g...

no. 3 example

[0088] Strong acid system:

[0089] Composition mol%

[0090] h 2 SO 0 (sulfuric acid) 50.00%

[0091] HClO 4 (perchloric acid) 50.00%

[0092] Complexing agent system:

[0093] Composition mol%

[0094] (NaPO 3 ) 6 (sodium hexametaphosphate) 50.00%

[0095] NH 4 F (ammonium fluoride) 50.00%

[0096] Mixed acid is composed of strong acid system, complexing agent system and pure water in a molar ratio of 5:1:15

[0097] Strong base system:

[0098] Composition mol%

[0099] KOH (potassium hydroxide) 50.00%

[0100] NaOH (sodium hydroxide) 50.00%

[0101] Complexing agent system:

[0102] Composition mol%

[0103] EDTA (ethylenediaminetetraacetic acid) 50.00%

[0104] K 2 CO 3 (potassium carbonate) 50.00%

[0105] The mixed acid is composed of a strong base system, a complexing agent system and pure water, and the molar ratio range of the three is: 5:1:3

[0106] Surface treatment steps:

[0107] Step 1: Put the finely ground phosphate laser glass sample i...

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Abstract

The invention discloses a phosphate laser glass surface enhancement processing method. The phosphate laser glass surface enhancement processing method comprises following steps: mixed acid is used for immersion erosion of phosphate laser glass; and then mixed alkali is used for surface removing of phosphate laser glass. The phosphate laser glass surface enhancement processing method is not limited by the shape of samples to be processed. The phosphate laser glass surface enhancement processing method is capable of removing micro-cracks and impurity particles on the surface of phosphate laser glass to a maximum degree, reducing surface roughness of phosphate laser glass after fine grinding, providing phosphate laser glass with higher microhardness and rupture strength, increasing repetition frequency and thermal damage threshold of phosphate laser glass under flashlamp pumped greatly, and increasing laser gain of phosphate laser glass via reducing scattering on incident light.

Description

technical field [0001] The invention relates to phosphate laser glass, in particular to a phosphate laser glass or a surface treatment method for the phosphate laser glass. Background technique [0002] Phosphate laser glass has moderate phonon energy, high solubility to rare earth ions, good spectral performance of rare earth ions in it, and small nonlinear coefficient, so it has become a widely used laser gain medium. The application fields of phosphate laser glass cover laser fusion, laser weapons, laser ranging, laser medical treatment, optical communication waveguide amplifiers, and ultrashort pulse laser applications. [0003] High repetition rate and high average power lasers have higher and higher requirements on the thermal shock resistance of laser glass under high-intensity optical pumping conditions. The impact of surface defects, microcracks and impurity particles reduces the thermal shock resistance of phosphate laser glass under high-intensity optical pumping...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00
Inventor 陈辉宇胡丽丽陈伟徐永春温磊程继萌薄剑
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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