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Buffer solution for acid processing of the surface of phosphate laser glass and processing method

A laser glass and surface treatment technology, applied in the direction of active medium materials, etc., can solve problems such as unevenness, difficult to achieve corrosion effect, affecting corrosion effect, etc., to improve thermal shock resistance, eliminate glass surface defects, and improve surface Effects of processing quality

Inactive Publication Date: 2010-01-06
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

If it is treated with strong acid, the acid is too strong to corrode the glass greatly and unevenly, and large corrosion pits are easy to appear, and the concentration of acid decreases with the progress of the reaction, which affects the corrosion effect
If the concentration of H+ and F- is low by weak acid treatment, it is difficult to achieve the effect of corrosion or the effect is not obvious

Method used

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  • Buffer solution for acid processing of the surface of phosphate laser glass and processing method
  • Buffer solution for acid processing of the surface of phosphate laser glass and processing method

Examples

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Effect test

no. 1 example

[0025] The composition of the acid buffer solution of the present embodiment phosphate laser glass surface treatment:

[0026] The first buffer system is Cl 3 COOH and Cl 3 The aqueous solution of COONa is a mixed solution with a volume ratio of 1:1, wherein Cl 3 COOH and Cl 3 COONaCl 3 The concentration of COOK aqueous solution is 1.00mol / L;

[0027] The second buffer system is a mixed solution of HF and NaF in a volume ratio of 1:1, wherein the concentration of HF is 1.00mol / L, and the concentration of NaF is 6.00mol / L;

[0028] The first buffer system and the second buffer system are mixed according to the volume ratio, and the value range of the volume ratio is 4:1, and then nitric acid is added to adjust the pH value of the acid buffer solution to 1.00.

[0029] Processing method of the present invention has the following steps:

[0030] first step:

[0031] First treat the sample with 4.0mol / l NaOH at 100°C for 10 minutes;

[0032] Step two:

[0033] The sample ...

no. 2 example

[0039] The composition of the acid buffer solution of the present embodiment phosphate laser glass surface treatment:

[0040] The first buffer system is Cl 3 COOH and Cl 3 The aqueous solution of COOK is a mixed solution of 1:1 by volume, in which Cl 3 COOH and Cl 3 The concentration of COOK aqueous solution is 1.00mol / L;

[0041] The second buffer system is HF, NH 4 The aqueous solution of F is a mixed solution with a volume ratio of 1:1, in which the concentration of HF is 1.00mol / L, NH 4 F concentration is 6.00mol / L;

[0042] The first buffer system and the second buffer system are mixed according to the volume ratio, and the value range of the volume ratio is 7:3, and then nitric acid is added to adjust the pH value of the acid buffer solution to 1.00.

[0043] Processing method of the present invention has the following steps:

[0044] first step:

[0045] First treat the sample with 4.0mol / l NaOH at 100°C for 40 minutes;

[0046] Step two:

[0047] The sample ...

no. 3 example

[0053] The composition of the acid buffer solution of the present embodiment phosphate laser glass surface treatment:

[0054] The first buffer system is Cl 3 COOH and Cl 3 The aqueous solution of COONa is a mixed solution with a volume ratio of 1:1, wherein Cl 3 COOH and Cl 3 The concentration of COONa aqueous solution is all 1.00mol / L;

[0055] The second buffer system is HF, NH 4 The aqueous solution of F is a mixed solution with a volume ratio of 1:1, in which the concentration of HF is 1.00mol / L, NH 4 The concentration of F is 6.00mol / L;

[0056] The first buffer system and the second buffer system are mixed according to the volume ratio, and the value range of the volume ratio is 3:2, and then nitric acid is added to adjust the pH value of the acid buffer solution to 1.00.

[0057] Processing method of the present invention has the following steps:

[0058] first step:

[0059] First treat the sample with 4.0mol / l NaOH at 90°C for 30 minutes;

[0060] Step two:

...

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Abstract

The invention relates to a buffer solution for the acid processing of the surface of phosphate laser glass and a processing method. The buffer solution is prepared from a buffer system which contains one or two kinds of weak acid and salt of weak acid by certain matching, wherein the buffer system of weak acid and salt of weak acid can be the buffer system of Cl3COOH and Cl3COONa, the buffer system of Cl3COOH and Cl3COOK, the buffer system of HF and NaF and the buffer system of HF and NH4F. The buffer system has the advantages that the consistence of H<+> and F<-> is unchanged or changed slightly in surface processing, thereby ensuring that the two ions have uniform and stable corrosion on the surface but do not like mixed strong acid which has large chemical action and do not generate large corrosion pits;, and overcoming the defects that corrosion effect reduces as the decreasing of the acid concentration in strong acid processing and the defects of slow processing speed and unfavorable effect in weak acid processing.

Description

technical field [0001] The invention relates to phosphate laser glass, in particular to a novel phosphate laser glass surface treatment acid buffer solution and a surface treatment method. Background technique [0002] Phosphate system glass has become a widely used laser gain medium due to its moderate phonon energy, high solubility to rare earth ions, good spectral performance of rare earth ions in it, and small nonlinear coefficient. 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 defect microcracks makes phosphate laser glass less thermal shock resistant under high-intensity optical pumping conditions, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00H01S3/17C23G1/02
Inventor 陈辉宇何冬兵胡丽丽李顺光程继萌
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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