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Preparation of neodymium-doped aluminum yttrium borate nano powder by acid-base titration

A nano-powder, neodymium boric acid technology, applied in the field of nano-powder preparation, can solve problems such as crystal growth difficulties and application limitations

Inactive Publication Date: 2005-12-07
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difficulty of crystal growth, its application has been greatly limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: prepare 5at.%Nd with hydrochloric acid as solvent 3+ :YAl 3 (BO 3 ) 4 Nano powder.

[0021] ①, 5.363g Y 2 o 3 powder and 0.4206g Nd 2 o 3 Add the powder into 100ml of 15% HCl aqueous solution, heat to 50°C, and stir at a speed of 30 rpm. After a clear solution is formed, add 36.204g of AlCl 3 ·H 2 O Stir until dissolved.

[0022] ②, 12.366g H 3 BO 3 The powder was dissolved in 100 ml deionized water.

[0023] Drop the No. ① solution into the No. ② solution at a rate of 1 drop / second, the stirring speed is 30 rpm, the heating temperature is 60°C, and the reaction is continued for 8 hours after the titration is completed. Then drop 50ml 20% NH 3 ·H 2 0, titration speed 3 drops / second, to the pH value of solution about 4, obtain colloidal solution after being cooled to room temperature. Suction filtration, the filtrate was washed 5 times with deionized water, dried at 100°C, moved to a muffle furnace and crystallized at 900°C for 2 hours to obt...

Embodiment 2

[0024] Embodiment 2: prepare 10at.%Nd with nitric acid as solvent 3+ :YAl 3 (BO 3 ) 4 Nano powder.

[0025] ①, 5.08g Y 2 o 3 powder and 0.841g Nd 2 o 3 Powder added to 100ml of 15% HNO 3 In the aqueous solution, heat to 50°C and stir at a speed of 30 rpm. After a clear solution is formed, add 36.204g of AlCl 3 ·H 2 O Stir until dissolved.

[0026] ②, 12.366g H 3 BO 3 The powder was dissolved in 100 ml deionized water.

[0027] Drop the No. ① solution into the No. ② solution at a rate of 1 drop / second, the stirring speed is 30 rpm, the heating temperature is 60°C, and the reaction is continued for 8 hours after the titration is completed. Then drop 50ml 20% NH 3 ·H 2 0, titration speed 3 drops / second, to the pH value of solution about 4, obtain colloidal solution after being cooled to room temperature. Suction filtration, the filtrate was washed 5 times with deionized water, dried at 100°C, moved to a muffle furnace for crystallization at 900°C for 2 hours, and ...

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Abstract

The invention relates to a process for preparing neodymium-doped aluminum yttrium borate nano powder by acid-base titration. Chemical analysis and X-ray powder diffraction show that the powder is neodymium-doped aluminum yttrium borate polycrystalline powder, the spectrographic analysis under room temperature indicates that its spectrum property is similar to neodymium-doped aluminum yttrium borate crystal, electron microscopy analysis shows that the particle size of the powder is between 20-50 nanometer. The powder can be used as the raw material in preparing nano crystalline ceramic laser material or nano glass ceramic laser material.

Description

technical field [0001] The invention relates to the field of optoelectronic nano-ceramic laser materials in the technical field of optoelectronic functional materials, in particular to a preparation technology of nano-powder used as raw materials for optoelectronic nano-ceramic laser materials and nano-glass ceramic laser materials. technical background [0002] The solid-state laser working substance is composed of matrix material and active ions. Its various physical and chemical properties are mainly determined by the matrix material, while its spectral characteristics and fluorescence lifetime are determined by the energy level structure of the active ion. With the increasingly extensive and in-depth application of laser technology in various fields, more diverse requirements are put forward for material properties. [0003] At present, the commonly used solid-state laser working materials are laser crystal materials, but most of them have disadvantages such as difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/622
Inventor 王国富林州斌胡祖树张莉珍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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