Ytterbium doped calcium fluoride microcrystal and fluorophosphate glass composite and preparation method thereof

A technology of fluorophosphate glass and ytterbium calcium fluoride, which is applied in the field of ytterbium-doped calcium fluoride microcrystals and fluorophosphate glass composite materials and its preparation, can solve problems such as expensive hot isostatic pressing equipment, and achieve safe production process, Effects in simple steps

Inactive Publication Date: 2016-02-10
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

This method allows more effective control of grain morphology, but requires expensive hot isostatic pressing equipment, and the method also requires the use of toxic ammonium bifluoride

Method used

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  • Ytterbium doped calcium fluoride microcrystal and fluorophosphate glass composite and preparation method thereof
  • Ytterbium doped calcium fluoride microcrystal and fluorophosphate glass composite and preparation method thereof
  • Ytterbium doped calcium fluoride microcrystal and fluorophosphate glass composite and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A preparation method of ytterbium-doped calcium fluoride microcrystal and fluorophosphate glass composite material, comprising the following steps:

[0024] ① 10MgF in molar ratio 2 -20CaF 2 -20SrF 2 -6BaF 2 -4NaF-40AlF 3 Melting at 900°C to obtain fluoride glass; by mass ratio 50NaPO 3 -50Al(PO 3 ) 3 Melt at 900°C to obtain phosphate glass, stir and mix the fluoride glass clinker and phosphate glass clinker at a weight ratio of 85:15 at 900°C to obtain fluorophosphate glass. Pulverizing the above fluorophosphate glass to obtain fluorophosphate glass powder;

[0025] ② Weigh and mix 0.5 g of ytterbium fluoride powder, 4.5 g of calcium fluoride powder and 5 g of fluorophosphate glass, add 10 g of deionized water to the mixed powder at a time, mix by ball milling, and The material of the ball milling tank is agate, the ball milling speed is 250 rpm, the ball milling time is 24 hours, and the mixed powder after ball milling is dried;

[0026] ③Perform high tempera...

Embodiment 2

[0030] A preparation method of ytterbium-doped calcium fluoride microcrystal and fluorophosphate glass composite material, comprising the following steps:

[0031] ① 10MgF in molar ratio 2 -20CaF 2 -20SrF 2 -6BaF 2 -4NaF-40AlF 3 Melting at 900°C to obtain fluoride glass; by mass ratio 50NaPO 3 -50Al(PO 3 ) 3 Melted at 900°C to obtain phosphate glass. Stir and mix the fluoride glass clinker and phosphate glass clinker at a weight ratio of 85:15 at 900°C to obtain fluorophosphate glass. Pulverizing the above fluorophosphate glass to obtain fluorophosphate glass powder;

[0032] ② Weigh and mix 0.05 g of ytterbium fluoride powder, 4.95 g of calcium fluoride powder and 5 g of fluorophosphate glass, add 10 g of deionized water to the mixed powder at a time, mix by ball milling, and The material of the ball milling tank is agate, the ball milling speed is 250 rpm, the ball milling time is 24 hours, and the mixed powder after ball milling is dried;

[0033] ③Treat the dry m...

Embodiment 3

[0036] A preparation method of ytterbium-doped calcium fluoride microcrystal and fluorophosphate glass composite material, comprising the following steps:

[0037] ① 10MgF in molar ratio 2 -20CaF 2 -20SrF 2 -6BaF 2 -4NaF-40AlF 3 Melting at 900°C to obtain fluoride glass; by mass ratio 50NaPO 3 -50Al(PO 3 ) 3 Melted at 900°C to obtain phosphate glass. Stir and mix the fluoride glass clinker and phosphate glass clinker at a weight ratio of 85:15 at 900°C to obtain fluorophosphate glass. Pulverizing the above fluorophosphate glass to obtain fluorophosphate glass powder;

[0038] ② Weigh and mix 0.025 g of ytterbium fluoride powder, 4.975 g of calcium fluoride powder and 5 g of fluorophosphate glass, add 10 g of deionized water to the mixed powder at a time, mix by ball milling, and The material of the ball milling tank is agate, the ball milling speed is 250 rpm, the ball milling time is 24 hours, and the mixed powder after ball milling is dried;

[0039]③Treat the dry ...

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Abstract

The invention provides an ytterbium doped calcium fluoride microcrystal and fluorophosphate glass composite and a preparation method thereof. The composite is formed through uniformly dispersing ytterbium doped calcium fluoride microcrystals into the fluorophosphate glass body, wherein the ytterbium doped calcium fluoride microcrystals accounts for 10%-50% in weight ratio, and the particle size of the microcrystals is 10-20 micrometers. According to the invention, the powder mixture of fluorophosphate glass, calcium fluoride and ytterbium fluoride is subjected to high temperature thermal treatment and then low temperature quenching, the preparation flow is simple, convenient and safe, the crystalline phase is high in content, and expensive equipment is not needed.

Description

technical field [0001] The invention relates to material preparation, especially a composite material of ytterbium-doped calcium fluoride microcrystal and fluorophosphate glass and its preparation method Background technique [0002] Ytterbium-doped calcium fluoride crystal is an excellent laser gain medium and fluorescent material. Its phonon energy is small, the probability of non-radiative transition is small, the fluorescence efficiency is high, the fluorescence bandwidth is wide, and the calcium fluoride crystal has great solubility for ytterbium ions. However, there is a cleavage plane in the (111) direction in ytterbium-doped calcium fluoride, which limits its application. [0003] With the continuous development of nano-fabrication technology, people have gradually realized that the assembly of different materials at the micro-nano scale can overcome the shortcomings of a single bulk material and achieve functional complementarity, resulting in superior performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/16
Inventor 范金太张龙姜雄伟袁新强姜本学毛小建姜益光
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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