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Rare earth ion doped YAG micro crystalline glass and its preparation method

A technology of glass ceramics and rare earth ions, which is applied in the field of glass ceramics doped with rare earth ions, can solve the problems of thermal conductivity, difficult repetition times of laser oscillation threshold, difficult increase of laser output power, complex process, etc., and achieve good physical and laser characteristics, low cost, and simple material preparation methods

Inactive Publication Date: 2007-07-18
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen from above that Yb 3+ 、Er 3+ 、Tm 3+ Equally doped YAG crystals are very important laser working materials, but the current rare earth ion-doped YAG crystals are mainly prepared by the pulling method, which has the disadvantages of high cost, complicated process, and slow speed; Difficult to increase laser output power due to size limitation
Although the laser glass doped with rare earth ions is low in cost and can be made large in size, so that the output power can be increased, it is difficult to compare with crystal in terms of thermal conductivity, laser oscillation threshold, and repetition times. The threshold is more than ten times larger than that of YAG single crystal, so its application is also greatly limited

Method used

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  • Rare earth ion doped YAG micro crystalline glass and its preparation method
  • Rare earth ion doped YAG micro crystalline glass and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: Table 1 shows the glass formula and the first crystallization temperature value of Embodiment 1.

[0026] Table 1

[0027] raw material

CaO

Y 2 o 3

Al 2 o 3

SiO 2

Yb 2 o 3

Component (mol%)

39

8

16

36

1

glass transparent case

transparent

The first crystallization temperature (°C)

1050

[0028] The specific preparation process is as follows: in the first step, weigh 50 grams of pure raw materials for analysis according to the formula in Table 1, mix the raw materials evenly and pour them into a quartz crucible for melting. Put it into a cast iron mold, then place it in a muffle furnace for annealing, keep it at the glass transition temperature Tg for 2 hours, then cool it down to 50°C at a rate of 10°C / hour, turn off the power of the muffle furnace and automatically cool it down to room temperature, and take out the glass In the second step, a...

Embodiment 2

[0030] Embodiment 2: Table 2 shows the glass formula and the first crystallization temperature value of Embodiment 2.

[0031] Table 2

[0032] raw material

CaO

Y 2 o 3

Al 2 o 3

SiO 2

TiO 2

Yb 2 o 3

ErO 3

components

29

6.5

16

41

5

2

0.5

glass transparent case

transparent

The first crystallization temperature (°C)

1030

[0033] The specific preparation process is as follows: first step, weigh 50 grams of analytical pure raw materials according to the formula in Table 2, mix the raw materials evenly and pour them into a platinum crucible for melting, the melting temperature is 1800 ° C, keep warm for 1 hour, pour the glass melt into Put it in a cast iron mold, then place it in a muffle furnace for annealing, keep it at the glass transition temperature Tg for 1 hour, then cool it down to 50°C at a rate of 10°C / hour, turn off the power of the muff...

Embodiment 3

[0035] Embodiment 3: Table 3 shows the glass formula and the first crystallization temperature value of Embodiment 3.

[0036] table 3

[0037] raw material

CaO

Y 2 o 3

Al 2 o 3

SiO 2

TiO 2

Yb 2 o 3

T m 2 o 3

components

24

6.75

16

46

5

2

0.25

glass transparent case

transparent

The first crystallization temperature (°C)

1025℃

[0038] The specific preparation process is as follows: first step, weigh 50 grams of pure raw materials for analysis according to the formula in Table 3, mix the raw materials evenly and pour them into a platinum crucible for melting. Put it in a cast iron mold, then place it in a muffle furnace for annealing, keep it at the glass transition temperature Tg for 1 hour, then cool it down to 50°C at a rate of 10°C / hour, turn off the power of the muffle furnace and automatically cool it down to room temperature, and take ...

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Abstract

The present invention discloses a rare earth ion doped YAG nucleated glass and its preparation method. Its composition contains: (by mol%) CaO 17-44, Y2O3 0.1-13, Al2O3 16-32, SiO2 26-46, RE2O3 0.1-9, TiO2 0-15, in which RE2O3 is at least one kind of Yb2O3, Er2O3 and Tm2O3. Its preparation method includes the following steps: firstly, adopting melting process to prepare CaO-Y2O3-Al2O3-SiO2-RE2O3-TiO2 system glass, making heat treatment to obtain nano-grade nucleated glass. Said nucleated glass is transparent, and has no devitrification, and its physical and chemical properties are good.

Description

technical field [0001] The invention relates to a rare earth ion-doped glass-ceramic, in particular to a rare-earth ion-doped YAG glass-ceramic and a preparation method thereof. Background technique [0002] At present, solid-state lasers are widely used in military, communication, industry, medical and other fields. Its working material is mainly crystal and glass. Rare earth ion-doped YAG crystals (RE:YAG) have been widely used. The matrix YAG (yttrium aluminum garnet) is the abbreviation of yttrium aluminum garnet, and the molecular formula is Y 3 Al 5 o 12 . YAG crystal has good mechanical strength, transparency, chemical stability and thermal conductivity, and can provide a good crystal field environment for active ions. YAG crystal is a very good host material that can be doped with rare earth ions; and rare earth ion doping The threshold value of laser oscillation generated by the advanced YAG laser is low, so the laser can be output continuously. More doped wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/02C03C3/062C03C3/095C03B32/02
Inventor 张约品夏海平张新民章践立王金浩
Owner NINGBO UNIV
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