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Microcrystalline glass containing rare earth mixing yttrium aluminum garnet (YAG) phase and preparation method thereof

A rare earth doped and glass-ceramic technology is applied in the field of rare-earth-doped YAG phase glass-ceramic and its preparation, which can solve the problems of poor optical performance of the glass-ceramic, poor uniformity and dispersibility of rare earth ions, etc. Low cost, good uniformity and excellent optical performance

Inactive Publication Date: 2012-07-11
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the above two kinds of glass-ceramics containing rare-earth-doped YAG phase, there are only 2 to 3 kinds of glass-ceramic components, and the glass-ceramics is basically transparent. The uniformity is also poor, the YAG crystal particles are larger, the nanoscale YAG crystal particles are less, the rare earth ions in the YAG lattice are less, and the optical performance of the glass ceramics is poor

Method used

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  • Microcrystalline glass containing rare earth mixing yttrium aluminum garnet (YAG) phase and preparation method thereof
  • Microcrystalline glass containing rare earth mixing yttrium aluminum garnet (YAG) phase and preparation method thereof
  • Microcrystalline glass containing rare earth mixing yttrium aluminum garnet (YAG) phase and preparation method thereof

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Effect test

Embodiment 1

[0021] will analyze pure SiO 2 18mol%, B 2 o 3 37mol%, Na 2 O15mol%, BaO2mol%, K 2 O2mol%, ZnO3mol%, CaO12mol% and Li 2 O11mol% is evenly mixed, poured into a quartz crucible, melted at 980-1000°C, kept warm for 0.2-0.7 hours to fuse into a glass melt, and the glass melt is put into a cast iron mold, and naturally cooled to room temperature to obtain a glass matrix material. The glass matrix material is ground into an average particle size of 200-300 microns for later use; the Al(NO 3 ) 3 solution, Y(NO 3 ) 3 solution and Ce(NO 3 ) 3 solution, according to the general formula (Y 0.97 Ce 0.03 ) 3 Al 5 o 12 The ratio of required Y, Ce and Al molar number is mixed, is made into the total concentration of cation and is 1 liter of mother salt solution of 0.2 mol / liter and puts into the spray container of ultrasonic atomization device, and spray container is connected with ultrasonic spray nozzle; Adjust the pH of the solution with ammonia water to be 10, and put 1 li...

Embodiment 2

[0023] will analyze pure SiO 2 12mol%, B 2 o 3 50mol%, Na 2 O25mol%, BaO1mol%, K 2 O1mol%, ZnO4mol%, CaO6mol% and Li 2 08mol% mixed evenly, poured into a quartz crucible, melted at 950-980°C, kept warm for 0.8-1.5 hours to fuse into a glass melt, put the glass melt into a cast iron mold, and naturally cooled to room temperature to obtain a glass matrix material. The glass matrix material is ground into an average particle size of 100-200 microns for later use; the Al(NO 3 ) 3 solution, Y(NO 3 ) 3 solution and Eu(Cl) 3 solution, according to the general formula (Y 0.92 Eu 0.08 ) 3 Al 5 o 12 The ratio of required Y, Eu and Al molar number is mixed, is made into the mother salt solution that total concentration of cation is 0.3 mol / liter and is put into the spray container of ultrasonic atomization device, and spray container is connected with ultrasonic spray head; Concentration is The 0.9 mol / liter ammonium bicarbonate solution is adjusted to the pH of the solutio...

Embodiment 3

[0025] will analyze pure SiO 2 43mol%, B 2 o 3 20mol%, Na 2 O6mol%, BaO5mol%, K 2 O5mol%, ZnO13mol%, CaO24mol% and Li 2 Mix O22mol% evenly, put it into a quartz crucible, melt it at 920-950°C, keep it warm for 1.5-2.0 hours and fuse it into a glass melt, put the glass melt into a cast iron mold, and cool it naturally to room temperature to obtain a glass matrix material. The glass matrix material is ground into an average particle size of not more than 300 microns for later use; the Al(NO 3 ) 3 solution, Y(NO 3 ) 3 solution and Nd (NO 3 ) 3 solution, according to the general formula (Y 0.95 Nd 0.05 ) 3 Al 5 o 12 The ratio of required Y, Nd and Al molar number is mixed, is made into the mother salt solution that total concentration of cation is 0.15 mol / liter and puts into the spray container of ultrasonic atomization device, and spray container is connected with ultrasonic spray head; Concentration is 0.45 mol / liter of ammonium bicarbonate solution is adjusted...

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Abstract

The invention discloses microcrystalline glass containing rare earth mixing yttrium aluminum garnet (YAG) phase and a preparation method thereof. A glass matrix material uses SiO2, B2O3, Na2O, BaO, K2O, ZnO, CaO and Li2O as raw materials and is obtained by melting and fusing, a general form of yttrium aluminum pomegranate stone microcrystal materials containing the rare earth is (Y1-XLnX)3A15O12, Ln is Ce, Eu or Nd, X=0.03-0.08, and the glass matrix material and the yttrium aluminum pomegranate stone microcrystal materials containing the rare earth are melted and fused according to the weight ratio of 95:4-6. The microcrystalline glass containing the rare earth mixing the YAG phase is obtained by annealing. The microcrystalline glass is semi-transparent, the microcrystalline glass containing the rare earth mixing the YAG phase is small in crystal particle, the microcrystalline glass is good in dispersibility of rare earth mixed YAG phase crystal, rare earth ion basically enters YAG crystal lattices, and the rare earth ion is also good in dispersibility, so that the microcrystalline glass is excellent in optical property and strong in fluorescence, and can be obtained through a two-step fusion method, melting and fusing temperature is low and lower than 100 DEG C, requirements of a preparation process are low, production cost is low, and the microcrystal materials are good in uniformity.

Description

technical field [0001] The invention relates to glass-ceramic, in particular to glass-ceramic containing rare earth-doped YAG phase and a preparation method thereof. Background technique [0002] Glass-ceramic combines the characteristics of glass and crystal, and solves the defects of single crystal growth and single crystal. It is a material with good optical properties and is used in military, communication, medicine and other fields. Yttrium aluminum garnet (yttrium aluminum garnet), the chemical formula is Y 3 Al 5 o 12 , referred to as YAG, has good mechanical strength, transparency, chemical stability and thermal conductivity, and can activate ions to provide a good crystal field environment. It is an excellent microcrystalline material that can be doped with rare earth ions. For example, the authorized announcement number is CN1326790, and the invention patent of YAG glass-ceramics and its preparation method with the title of rare earth ion doping, just discloses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/14
Inventor 夏海平张丽张约品章践立
Owner NINGBO UNIV
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