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Fluorine-oxygen ceramic glass material and preparation method thereof

A technology of glass materials and oxyfluoride ceramics, which is applied in the field of glass materials, can solve the problems of low luminous efficiency, low mechanical strength, and low luminous intensity, and achieve high luminous efficiency, good mechanical strength, and superior luminous performance.

Inactive Publication Date: 2019-04-26
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an oxyfluoride ceramic glass material and its preparation method to solve the problems of low luminous efficiency, low luminous intensity and low mechanical strength of the existing oxyfluoride glass as a host material doped with luminescent particles, and to provide a An infrared window material with high luminous efficiency, high luminous intensity and good mechanical strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The oxyfluoride ceramic glass material of the present embodiment, its raw material comprises: GeO 2 15mol%, SiO 2 30mol%, Al 2 o 3 15mol%, B 2 o 3 6mol%, Li 2 O 2mol%, BaF 2 30mol%, Yb 2 o 3 1.6mol% and TmF 3 0.4 mol%.

[0028] The preparation method of the oxyfluoride ceramic glass material of this embodiment includes:

[0029] (1) After mixing the above raw materials, heat and melt them at 1400°C for 45 minutes, discharge them at 1350°C, and then pour them into a mold for compression molding to obtain a prefabricated sample;

[0030] (2) Annealing the prefabricated sample at 450°C for 3 hours to obtain the precursor glass;

[0031] (3) Carrying out the first heat treatment and the second heat treatment successively on the precursor glass;

[0032] Among them, the first heat treatment process is: heating the precursor glass at a rate of 12 °C / min to 600 °C for 3 hours;

[0033] The process of the second heat treatment is as follows: the precursor gla...

Embodiment 2

[0036] The oxyfluoride ceramic glass material of the present embodiment, its raw material comprises: GeO 2 10mol%, SiO 2 40mol%, Al 2 o 3 10mol%, B 2 o 3 10mol%, Li 2 O 2mol%, BaF 2 25mol%, Yb 2 o 3 2.8mol% and TmF 3 0.2 mol%.

[0037]The preparation method of the oxyfluoride ceramic glass material of this embodiment includes:

[0038] (1) After mixing the above raw materials, heat and melt them at 1300°C for 60 minutes, discharge them at 1320°C, and then pour them into a mold for compression molding to obtain a prefabricated sample;

[0039] (2) Annealing the prefabricated sample at 350°C for 3 hours to obtain the precursor glass;

[0040] (3) Carrying out the first heat treatment and the second heat treatment successively on the precursor glass;

[0041] Among them, the first heat treatment process is: heating the precursor glass at a rate of 10°C / min to 550°C for 4 hours;

[0042] The process of the second heat treatment is as follows: the precursor glass...

Embodiment 3

[0045] The oxyfluoride ceramic glass material of the present embodiment, its raw material comprises: GeO 2 20mol%, SiO 2 20mol%, Al 2 o 3 10mol%, B 2 o 3 1mol%, Li 2 O 6mol%, BaF 2 40mol%, Yb 2 o 3 2.7mol% and TmF 3 0.3 mol%.

[0046] The preparation method of the oxyfluoride ceramic glass material of this embodiment includes:

[0047] (1) After mixing the above raw materials, heat and melt them at 1500°C for 45 minutes, discharge them at 1360°C, and then pour them into a mold for compression molding to obtain a prefabricated sample;

[0048] (2) Anneal the prefabricated sample at 480°C for 2 hours to obtain the precursor glass;

[0049] (3) Carrying out the first heat treatment and the second heat treatment successively on the precursor glass;

[0050] Among them, the first heat treatment process is: heating the precursor glass at a rate of 15°C / min to 690°C for 2.5 hours;

[0051] The second heat treatment process is as follows: the precursor glass after t...

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Abstract

The invention discloses a fluorine-oxygen ceramic glass material and a preparation method thereof. The fluorine-oxygen ceramic glass material is prepared from the following raw materials: 10 to 20 molpercent of GeO2, 20 to 40 mol percent of SiO2, 10 to 20 mol percent of Al2O3, 1 to 10 mol percent of B2O3, 1 to 10 mol percent of Li2O, 25 to 40 mol percent of BaF2, 0.6 to 3 mol percent of Yb2O3 and0.2 to 0.5 mol percent of TmF3. The fluorine-oxygen ceramic glass material obtained by the invention has the advantages of superior luminescent property high luminous efficiency, good mechanical strength and capability of enriching the application of a fluorine-oxygen glass material system in infrared window materials.

Description

technical field [0001] The invention relates to the technical field of glass materials, in particular to an oxyfluoride ceramic glass material and a preparation method thereof. Background technique [0002] The oxyfluoride material system has broad application prospects because it not only has the characteristics of high upconversion luminous efficiency of fluoride, but also has the characteristics of good chemical stability and high mechanical strength of oxide materials. Oxyfluorine glass has low phonon energy characteristics, and has good chemical stability and mechanical strength. It has attracted extensive attention in the field of luminescence and photonics, and is a good matrix material for luminescent particles. [0003] At present, there are many reports on the doping of oxyfluoride glass with various luminescent particles, including doping with rare earth ions, heavy metal ions and transition metal ions, but there are few studies on infrared window materials, and t...

Claims

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Application Information

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IPC IPC(8): C03C10/00
CPCC03C10/00
Inventor 李春宏康晓丽张玉琪魏光平
Owner XIHUA UNIV
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