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Preparation method for terbium oxide and yttrium oxide co-stabilized zirconia nano fluorescent ceramic powder

A technology of stabilizing zirconia and nano-fluorescence, which is applied in the field of preparation of rare earth luminescent materials, can solve the problems of particle agglomeration and sintering, small specific surface area, and limitations, and achieve good luminescence performance, easy availability of raw materials, and improved density.

Active Publication Date: 2014-02-05
赣州点金新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ZrO was prepared by the solution combustion method 2 :Tb 3+ Fluorescent ceramic powder has not been reported
However, the problem of serious particle agglomeration and sintering and small specific surface area in solution combustion synthesis powders generally restricts the application of this method in the preparation of high-dispersion, high specific surface area, and high-performance nano-fluorescent ceramic powders. Therefore, it has become a hot spot for researchers. one

Method used

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  • Preparation method for terbium oxide and yttrium oxide co-stabilized zirconia nano fluorescent ceramic powder
  • Preparation method for terbium oxide and yttrium oxide co-stabilized zirconia nano fluorescent ceramic powder
  • Preparation method for terbium oxide and yttrium oxide co-stabilized zirconia nano fluorescent ceramic powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 3.0960g ZrOCl 2 ·8H 2 O,0.0339gY 2 o 3 and 0.0187g Tb 4 o 7 , adding an excess of 1:1 nitric acid and heating to dissolve Y 2 o 3 and Tb 4 o 7 , to form a clear solution of yttrium nitrate and terbium nitrate, the weighed ZrOCl 2 ·8H 2 O is completely dissolved in it to obtain the mixed salt solution of the metal contained in the target product, then add 1.7532g NaCl and 1.7099g glycine to the solution, after heating to dissolve completely, continue heating and concentrating the mixed solution until viscous, put it into the The fixed temperature is 600°C and ignited in the fixed temperature cavity. After the combustion is completed, the sample is taken out, washed, filtered and dried to obtain a specific surface area of ​​123 m 2 g -1 of (Tb 4 o 7 ) 0.0025 (Y 2 o 3 ) 0.015 (ZrO 2 ) 0.96 Pale yellow powder.

Embodiment 2

[0037] Weigh 2.993g ZrOCl 2 ·8H 2 O, 0.0339gY 2 o 3 and 0.0748g Tb 4 o 7 , add excess 1:1 nitric acid and heat to dissolve Y 2 o 3 and Tb 4 o 7 , to form a clear solution of yttrium nitrate and terbium nitrate, the weighed ZrOCl 2 ·8H 2 O is completely dissolved in it to obtain the mixed salt solution of the metal contained in the target product, then add 1.7532g NaCl and 1.7596g glycine to the solution, after heating to dissolve completely, continue to heat and concentrate the mixed solution until it is viscous, and put it into the set The temperature is 600°C and ignited in a constant temperature chamber. After the combustion is completed, the sample is taken out, washed, filtered, and dried to obtain a specific surface area of ​​171m 2 g -1 of (Tb 4 o 7 ) 0.010 (Y 2 o 3 ) 0.015 (ZrO 2 ) 0.930 Pale yellow powder.

Embodiment 3

[0039] Weigh 2.7410g ZrOCl 2 ·8H 2 O, 0.0339gY 2 o 3 and 0.2244g Tb 4 o 7 , adding an excess of 1:1 nitric acid and heating to dissolve Y 2 o 3 and Tb 4 o 7 , to form a clear solution of yttrium nitrate and terbium nitrate, the weighed ZrOCl 2 ·8H 2 O is completely dissolved in it to obtain a mixed salt solution of the metal contained in the target product, and then add 1.7532g NaCl and 1.8934g glycine to the solution, after heating to dissolve completely, continue to heat and concentrate the mixed solution until it is viscous, and put it into the set The temperature is 600°C and ignited in a constant temperature chamber. After the combustion is completed, the sample is taken out, washed, filtered, and dried to obtain a specific surface area of ​​120m 2 g -1 of (Tb 4 o 7 ) 0.030 (Y 2 o 3 ) 0.015 (ZrO 2 ) 0.850 Pale yellow powder.

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Abstract

The invention relates to a preparation method for terbium oxide and yttrium oxide co-stabilized zirconia nano fluorescent ceramic powder. The preparation method comprises the steps of weighing zirconium oxychloride octahydrate, a terbium raw material and a yttrium raw material respectively according to stoichiometric ratio of various metal elements in (Tb4O7)x(Y2O3)y(ZrO2)1-4x-2y (wherein 0.010 <= x+ y <= 0.150, 0.002 <= x <= 0.040), dissolving the terbium raw material and the yttrium raw material and transferring the terbium raw material and the yttrium raw material into a mixed solution of corresponding nitrate, and dissolving the zirconium oxychloride octahydrate in the mixed solution; (2) adding a soluble salt and an organic fuel in the mixed solution obtained by the step (1); heating to dissolve the soluble salt and the organic fuel, continuously heating the solution into a sticky state, putting the obtained sticky material in a heating furnace cavity at a temperature of 400-1,000 DEG C and igniting; and (3) washing, filtering and drying a product obtained by the step (2). The prepared powder particles are spheres which are uniform in size and good in dispersion. The particle size of crystals is 3-7 nm; and a specific surface area can reach 269 m<2>.g<-1>. The preparation method is simple in process, easily available in raw materials, low in equipment requirements and short in synthesis time, can form a phase in one step, and is low in energy consumption and low in cost.

Description

technical field [0001] The invention belongs to the technical field of material preparation, in particular to a preparation method of a rare earth luminescent material. Background technique [0002] ZrO 2 It is a new type of ceramic material with excellent physical and chemical properties. ZrO 2 The extremely low thermal conductivity and special crystal structure and its thermal expansion coefficient close to that of metal materials make it an important structural ceramic and electronic material. Due to ZrO 2 Excellent high temperature thermal stability and high heat insulation performance, especially suitable for ceramic coating and high temperature refractory materials. In recent years, with the ZrO 2 Discovery of phase transformation toughening technology, ZrO 2 The brittleness of ceramics is greatly improved, and its application field in engineering ceramics has also been greatly expanded. [0003] ZrO 2 Crystals have high refractive index, good optical transpare...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622
Inventor 陈伟凡邹煌龙曾祥刘越王琳琳
Owner 赣州点金新材料科技有限公司
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