Yttrium oxide laser transparent ceramic material with incentive elements in continuous gradient distribution and preparation method thereof

A gradient distribution and ceramic material technology, applied in the field of materials, can solve the problems of not being able to fundamentally solve the problem of thermal effect, not completely eliminating the interface, and not being able to eliminate the influence of interface thermal effect, so as to eliminate thermal stress and its influence on the laser beam, beam Improved quality and average power at lower cost

Inactive Publication Date: 2014-11-26
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

However, the multi-segment composite gain medium does not completely eliminate the interface formed when the segments are recombined, and the concentration of the excitation elements in the matrix is ​​still distributed in a "ladder" manner to a certain extent, which cannot fundamentally solve the problem of thermal effects in each segment. The thermal effect caused by the interface and its influence on the laser beam cannot be eliminated

Method used

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  • Yttrium oxide laser transparent ceramic material with incentive elements in continuous gradient distribution and preparation method thereof
  • Yttrium oxide laser transparent ceramic material with incentive elements in continuous gradient distribution and preparation method thereof
  • Yttrium oxide laser transparent ceramic material with incentive elements in continuous gradient distribution and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Prepare Y (NO 3 ) 3 solution, and adjust the pH=1 with a nitric acid solution with a concentration of 0.1M; prepare Yb with a molar concentration of 0.01M (NO 3 ) 3 solution, and adjust the pH=1 with a nitric acid solution with a concentration of 0.1M; prepare a urea solution with a molar concentration of 0.5M;

[0047] Preparation of Yb:Y 2 o 3 Spherical nano powder:

[0048] Will Y (NO 3 ) 3 solution, Yb (NO 3 ) 3 Solution and urea solution are mixed evenly to make rare earth doped yttrium oxide mother salt solution, wherein Y(NO 3 ) 3 and Yb (NO 3 ) 3 The molar ratio of Y (NO 3 ) 3 and Yb (NO 3 ) 3 The molar ratio of the total amount of urea to urea is 1:10; the rare earth-doped yttrium oxide mother salt solution is heated to 90°C within 0.5 hours, and kept for 5 hours to obtain a white precipitate; the white precipitate is collected by filtration and washed, and the cleaning is first with water Wash and filter the white precipitate, and then wash an...

Embodiment 2

[0060] Prepare the molar concentration of 0.5M Y (NO 3 ) 3 solution, and adjust the pH=5 with a nitric acid solution with a concentration of 1M; prepare a molar concentration of 0.5M Yb (NO 3 ) 3 solution, and adjust the pH=5 with a nitric acid solution with a concentration of 1M; prepare a urea solution with a molar concentration of 2M;

[0061] Preparation of Yb:Y 2 o 3Spherical nano powder:

[0062] Will Y (NO 3 ) 3 solution, Yb(NO 3 ) 3 Solution and urea solution are mixed evenly to make rare earth doped yttrium oxide mother salt solution, wherein Y(NO 3 ) 3 and Yb (NO 3 ) 3 The molar ratio of Y (NO 3 ) 3 and Yb (NO 3 ) 3 The molar ratio of the total amount of urea to urea is 1:30; the rare earth-doped yttrium oxide mother salt solution is heated to 82°C within 1 hour, and kept for 3 hours to obtain a white precipitate; the white precipitate is collected by filtration and washed. Wash and filter the white precipitate, then wash and filter the white precipi...

Embodiment 3

[0074] Prepare the molar concentration of 0.1M Y (NO 3 ) 3 solution, and adjust the pH=35 with 0.2M nitric acid solution; prepare Yb (NO 3 ) 3 solution, and adjust the pH=3 with a nitric acid solution with a concentration of 0.2M; prepare a urea solution with a molar concentration of 1M;

[0075] Preparation of Yb:Y 2 o 3 Spherical nano powder:

[0076] Will Y (NO 3 ) 3 solution, Yb(NO 3 ) 3 Solution and urea solution are mixed evenly to make rare earth doped yttrium oxide mother salt solution, wherein Y(NO 3 ) 3 and Yb (NO 3 ) 3 The molar ratio of Y (NO 3 ) 3 and Yb (NO 3 ) 3 The molar ratio of the total amount of urea to urea is 1:10; the rare earth-doped yttrium oxide mother salt solution is heated to 98°C within 4 hours, and kept for 0.5 hours to obtain a white precipitate; the white precipitate is collected by filtration and washed. Wash and filter the white precipitate, then wash and filter the white precipitate with absolute ethanol until there is no ni...

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Abstract

The invention discloses a yttrium oxide laser transparent ceramic material with incentive elements in continuous gradient distribution and a preparation method thereof, wherein a host material is Y2O3; and the incentive elements RE are Yb, Tm or Nd. The yttrium oxide laser transparent ceramic material is characterized in that the concentration of the incentive elements RE in the host material is in a continuous gradient distribution along the axial direction of the host material. The preparation method comprises the steps of (1) preparing Y(NO3)3 solution, RE(NO3)3 solution and urea solution; (2) preparing RE:Y2O3 spherical nano-powder; (3) preparing Y2O3 spherical nano-powder; (4) mixing the Y2O3 spherical nano-powder and the RE:Y2O3 spherical nano-powder which are the same in particle size to prepare mixed powder; ball-milling, dispersing and ultrasonically dispersing to obtain slurry with high suspending stability; (5) centrifugally separating and removing a liquid phase, and drying to obtain a gradient blank; and (6) sintering in vacuum after biscuiting, and finally annealing. By adopting the preparation technology of a common ceramic material, the preparation method is simple in process, low in cost and suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of material technology, in particular to a yttrium oxide laser transparent ceramic material with continuous gradient distribution of excitation elements and a preparation method thereof. Background technique [0002] The all-solid-state laser pumped by laser diode has the advantages of small size, high efficiency, good stability and long life, and has important applications in the fields of national defense, optoelectronics industry, optical communication and medical health. With the continuous improvement and development of high-power semiconductor laser technology, high-power diode-pumped solid-state lasers have become a research hotspot for scholars at home and abroad. These studies mainly focus on how to effectively increase the laser output power and improve the quality of the laser beam. During the power pumping process, part of the heat absorbed by the solid-state laser medium plus the heat generated by non-rad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/505C04B35/622
Inventor 李晓东曾维和陈剑波陈轩邓佳丽
Owner NORTHEASTERN UNIV LIAONING
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