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Phosphate-silicate laser neodymium glass with thermal shock resistance, and preparation method thereof

A phosphosilicate and neodymium glass technology, applied in the field of phosphosilicate laser neodymium glass and its preparation, can solve the problems of poor spectral properties, unsatisfactory glass, and thermomechanical properties inferior to silicate glass, and reduce thermal expansion. coefficient, the effect of improving thermal shock resistance, and improving thermal conductivity

Inactive Publication Date: 2015-08-26
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these glasses are still unable to meet the increasing requirements for the thermomechanical properties of neodymium glass in heavy-frequency high-energy laser systems, so it is very important to further improve the thermomechanical properties of neodymium glass
[0006] The advantage of silicate glass is that it has good thermomechanical properties and high chemical stability, but its spectral properties are poor
While phosphate glass has excellent spectral properties, but is not as good as silicate glass in terms of thermomechanical properties

Method used

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  • Phosphate-silicate laser neodymium glass with thermal shock resistance, and preparation method thereof
  • Phosphate-silicate laser neodymium glass with thermal shock resistance, and preparation method thereof
  • Phosphate-silicate laser neodymium glass with thermal shock resistance, and preparation method thereof

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Embodiment 1-8

[0037] The preparation method of embodiment 1-8 is as follows:

[0038] (1) Take the raw materials according to the molar percentage of the components of Examples 1-8 in Table 1, and mix them uniformly to form a mixture;

[0039] (2) adding the mixture into a quartz crucible, and melting the crucible in a silicon carbide furnace at 1350-1500°C for 2-3 hours;

[0040] (3) Put a lid on the quartz crucible, feed oxygen into the molten glass, and remove water for 50-80 minutes;

[0041] (4) After stopping the ventilation, clarify the glass liquid for 2-3 hours in an oxygen atmosphere at 1300-1450°C;

[0042] (5) The glass melt is lowered to 1200-1350° C. within 15 minutes, and mechanically stirred in an oxygen atmosphere for 8-10 hours;

[0043] (6) Reduce the molten glass to 1100-1250°C within 15 minutes, pour the molten glass onto a preheated iron plate to shape, and quickly transfer it to a muffle furnace at 540-580°C after setting, keep warm After 2-3 hours, cool down to ro...

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Abstract

The invention discloses phosphate-silicate laser neodymium glass with thermal shock resistance, and a preparation method thereof. The glass is composed of 40-56mol% of P2O5, 8-22mol% of SiO2, 15-20mol% of Al2O3, 10-15mol% of MgO, 10-15mol% of Li2O, 0.2-3mol% of Nd2O3, and 0-0.3mol% of Sb2O3. The phosphate-silicate laser neodymium glass has relatively low thermal expansion coefficient, relatively high fracture toughness and relatively high thermal conductivity. The glass can withstand higher thermal shock and is prevented from being damaged. The glass also has a moderate stimulated emission cross section and a relatively long fluorescence lifetime, thus is widely applied as a gain medium in a repetition-frequency large-energy laser system.

Description

technical field [0001] The invention belongs to the field of laser glass preparation, and in particular relates to a heat-shock-resistant phospho-silicate laser neodymium glass and a preparation method thereof. The glass has a low coefficient of thermal expansion, high fracture toughness and high thermal conductivity. At the same time, it has a moderate stimulated emission cross section and a high fluorescence lifetime, and can be used in a repetition frequency high energy laser system. technical background [0002] Phosphate laser glass has the advantages of moderate phonon energy and good spectral performance, and is widely used in high-energy, high-peak power laser devices at home and abroad. However, the existing phosphate laser glass has poor thermomechanical properties and is difficult to withstand Strong thermal shock limits its application in heavy-frequency high-energy laser systems, so it is extremely important to find phosphate laser glasses with superior thermome...

Claims

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Application Information

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IPC IPC(8): C03C4/00C03C3/062
Inventor 丁亚军何冬兵康帅陈伟胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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