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Preparation method of high-transmittance Dy: Y2O3 transparent ceramic

A technology of transparent ceramics and high transmittance, which is applied in the field of solid laser gain medium materials, can solve the problems of unsatisfactory heat dissipation effect of laser gain medium, degradation of laser beam quality, and decrease of laser efficiency, so as to achieve high laser damage threshold and avoid heat loss. Conductivity loss, the effect of inhibiting excessive grain growth

Pending Publication Date: 2022-03-11
中红外激光研究院(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But Er 3+ Activated ions require high-concentration doping, which will greatly reduce the thermal conductivity of the material, which will make the heat dissipation effect of the laser gain medium unsatisfactory, resulting in a decrease in the quality of the laser beam, which will reduce the efficiency and stability of the laser.

Method used

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  • Preparation method of high-transmittance Dy: Y2O3 transparent ceramic
  • Preparation method of high-transmittance Dy: Y2O3 transparent ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Specifically include the following steps:

[0031] Step 1: preparation of solution;

[0032] Using Dy(NO 3 ) 3 , Y(NO 3 ) 3 , La(NO 3 ) 3 , ZrOCl 2 ·8H 2 O solution as raw material, the four solutions according to the chemical formula (Dy 0.006 Zr 0.01 La 0.005 Y 0.979 ) 2 o 3 Mix and make 5L solution, as the mother liquor, the molar concentration of Y ion in the mother liquor is 0.2mol / L, and the molar ratio of Dy and Y ion is between 1 / 200 and 1 / 50, and the molar ratio of Zr and Y ion is between Between 1 / 200 and 1 / 20, the molar ratio of La and Y ions is between 1 / 200 and 1 / 20; the NH4 OH is diluted with water to NH with a molar concentration of 0.6 mol / L 4 OH aqueous solution is used as a precipitating agent;

[0033] Step 2: preparation of the pre-drive body;

[0034] Using the forward titration method, the precipitant is dripped into the mother liquor at a rate of 10mL / min through a peristaltic pump, and at the same time high-speed stirring is carri...

Embodiment 2

[0046] Specifically include the following steps:

[0047] Step 1: preparation of solution;

[0048] Using Dy(NO 3 ) 3 , Y(NO 3 ) 3 , La(NO 3 ) 3 , ZrOCl 2 ·8H 2 O solution as raw material, the four solutions according to the chemical formula (Dy 0.006 Zr 0.01 La 0.005 Y 0.979 ) 2 o 3 Mix and make 5L solution, as the mother liquor, the molar concentration of Y ion in the mother liquor is 0.1mol / L, and the molar ratio of Dy and Y ion is between 1 / 200 and 1 / 50, and the molar ratio of Zr and Y ion is between Between 1 / 200 and 1 / 20, the molar ratio of La and Y ions is between 1 / 200 and 1 / 20; the NH 4 OH is diluted with water to NH with a molar concentration of 0.5 mol / L 4 OH aqueous solution is used as a precipitating agent;

[0049] Step 2: preparation of the pre-drive body;

[0050] Using the forward titration method, the precipitant is dripped into the mother liquor at a rate of 12mL / min through a peristaltic pump, and at the same time high-speed stirring is car...

Embodiment 3

[0062] Specifically include the following steps:

[0063] Step 1: preparation of solution;

[0064] Using Dy(NO 3 ) 3 , Y(NO 3 ) 3 , La(NO 3 ) 3 , ZrOCl 2 ·8H 2 O solution as raw material, the four solutions according to the chemical formula (Dy 0.006 Zr 0.01 La 0.005 Y 0.979 ) 2 o 3 Mix and make 5L solution, as the mother liquor, the molar concentration of Y ion in the mother liquor is 0.6mol / L, and the molar ratio of Dy and Y ion is between 1 / 200 and 1 / 50, and the molar ratio of Zr and Y ion is between Between 1 / 200 and 1 / 20, the molar ratio of La and Y ions is between 1 / 200 and 1 / 20; the NH 4 OH is diluted with water to NH with a molar concentration of 1.0 mol / L 4 OH aqueous solution is used as a precipitating agent;

[0065] Step 2: preparation of the pre-drive body;

[0066] Using the forward titration method, the precipitating agent is dripped into the mother liquor at a rate of 20mL / min through a peristaltic pump, and high-speed stirring is carried out ...

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Abstract

The invention relates to a preparation method of high-transmittance Dy: Y2O3 transparent ceramic. The preparation method comprises the following steps: preparing mother liquor from Dy (NO3) 3, Y (NO3) 3, La (NO3) 3 and ZrOCl2. 8H2O solutions as raw materials; an NH4OH aqueous solution is used as a precipitator; the method comprises the following steps: firstly, dropwise adding a precipitant into a mother solution to generate a precipitate, then carrying out cleaning and solid-liquid separation treatment to obtain a precipitate, and sequentially carrying out drying, grinding and sieving treatment on the precipitate to obtain powder; carrying out calcination treatment on the powder to synthesize Dy: Y2O3 nano powder; grinding the powder by using a zirconium oxide mortar, and then carrying out sieving treatment; the sieved powder is sequentially subjected to dry pressing forming and cold isostatic pressing forming treatment, and a biscuit is obtained; carrying out vacuum sintering on the biscuit, and then carrying out hot isostatic pressing sintering; the method comprises the following steps: annealing a sintered biscuit, and polishing to obtain the high-transparency Dy: Y2O3 transparent ceramic. The method can be used for preparing the transparent ceramic bearing high-power laser, and the transparent ceramic is good in stability.

Description

technical field [0001] The invention belongs to the technical field of solid laser gain medium materials, and in particular relates to a high transmittance Dy:Y 2 o 3 Preparation method of transparent ceramics. Background technique [0002] The mid-infrared laser of 2.8-3.3 μm is located in the two transmission windows (1-3 μm, 3-5 μm) of the atmosphere, covering many important molecular characteristic lines. Due to this characteristic, the mid-infrared laser is widely used in military, medical, optical Communications, environmental monitoring and industrial processing and other fields have a very wide range of applications. [0003] At present, one of the main ways to obtain laser in the 2.8-3.3 μm band is to generate it directly through the laser working medium, that is, to use LD to pump rare earth ions or transition metal ion-doped laser materials. At this stage, rare earths that can emit light in the 2.8-3.3 μm band Ions include Er3+, Dy3+, Ho3+, Tm3+, etc., where Er...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/505C04B35/622
CPCC04B35/505C04B35/622C04B2235/443C04B2235/444C04B2235/6581C04B2235/662C04B2235/9653C04B2235/96C04B2235/77
Inventor 王俊马杰王飞刘鹏沈德元
Owner 中红外激光研究院(江苏)有限公司
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