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Method for preparing rare earth doping yttrium aluminum garnet crystalline ceramic through synthesis of rare earth doping Y2O3 nanometer powder

A technology for doping yttrium aluminum garnet and rare earth, which is applied in the field of synthesizing rare earth doped Y2O3 nanopowder to prepare rare earth doped yttrium aluminum garnet transparent ceramics, which can solve the problems of complicated process, harsh preparation conditions and easy segregation of components, Achieve the effect of optimizing the preparation process and avoiding component segregation

Inactive Publication Date: 2013-04-24
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

The solid-phase method has a simple process and is conducive to mass production, but the solid-phase method requires high-energy ball milling to grind the powder, which is easy to introduce a large amount of impurities
The powder prepared by the liquid phase method has good dispersibility and high sinterability, but the process is complex, time-consuming, components are easy to segregate, and the preparation conditions are harsh

Method used

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  • Method for preparing rare earth doping yttrium aluminum garnet crystalline ceramic through synthesis of rare earth doping Y2O3 nanometer powder
  • Method for preparing rare earth doping yttrium aluminum garnet crystalline ceramic through synthesis of rare earth doping Y2O3 nanometer powder
  • Method for preparing rare earth doping yttrium aluminum garnet crystalline ceramic through synthesis of rare earth doping Y2O3 nanometer powder

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Embodiment 1

[0030] A kind of doping Y by synthesizing rare earth 2 o 3A method for preparing rare earth-doped yttrium aluminum garnet transparent ceramics from nanopowders, comprising the following steps:

[0031] (1) Y(NO 3 ) 3 and Nd(NO 3 ) 3 According to the chemical composition Nd 2x Y 2-2x o 3 Weigh and make a solution, Y(NO 3 ) 3 and Nd(NO 3 ) 3 The total concentration is 0.3mol / L, where x=0.01, while adding 5% of the total amount of metal ions (NH 4 ) 2 SO 4 as a dispersant.

[0032] (2) the NH 4 HCO 3 Dissolve in deionized water to make a 1.5mol / L solution, weigh 500mL of NH 4 HCO 3 solution, slowly titrated to 500mL of Y(NO 3 ) 3 / Nd(NO 3 ) 3 In the mixed solution, stir thoroughly.

[0033] (3) After the titration is finished, continue to stir for 24 hours to make it fully crystallized.

[0034] (4) Wash the precipitate 4 times with deionized water, separate it with a centrifuge to remove impurity ions, and wash the precipitate 4 times with absolute eth...

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Abstract

The invention discloses a method for preparing rare earth doping yttrium aluminum garnet crystalline ceramic through synthesis of rare earth doping Y2O3 nanometer powder. Through a new preparation process, the method for preparing the rare earth doping yttrium aluminum garnet crystalline ceramic through the synthesis of the rare earth doping Y2O3 nanometer powder realizes the purposes of not only solving an impurity problem in a solid phase method, but also avoiding a component segregation problem in a liquid phase method, and optimizes the preparation process.

Description

technical field [0001] The present invention mainly relates to a method for preparing rare earth doped yttrium aluminum garnet transparent ceramics, in particular to a method for doping Y by synthesizing rare earth 2 o 3 A method for preparing rare earth-doped yttrium aluminum garnet transparent ceramics from nanopowder. Background technique [0002] Yttrium aluminum garnet (YAG) belongs to the cubic crystal system, has good optical properties, and is an important laser matrix material. Doping Nd3+, Ho3+, Tm3+, Cr4+, ​​Yb3+, Eu3+, Er3+, Sm3+, Ce3+ and other rare earth active ions in YAG single crystal can realize laser output. However, the long preparation period, small size and low doping concentration of YAG single crystal material greatly restrict its application. Compared with YAG single crystal, the advantage of YAG polycrystalline ceramics is that it can achieve large-scale preparation and high-power laser output, and can achieve high concentration and uniform d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/447C04B35/505C04B35/622
Inventor 刘永飞秦晓英辛红星宋春军
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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