Preparation method of high erbium-doped Faraday optical rotation glass

A technology of Faraday rotation and high dosage, which is applied in the field of preparation of Faraday rotation glass, and achieves the effects of excellent thermal stability and chemical stability, low melting temperature and excellent formability.

Inactive Publication Date: 2014-03-12
SHAANXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] (3) An important index to evaluate the performance of Faraday magneto-optical glass is the quality factor M 1 , but currently does not provide an effective selection criteria for different uses of magneto-optical glass
There is no report on the research and application of high-doped rare earth erbium oxide and large Verdet constant magneto-optical glass

Method used

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  • Preparation method of high erbium-doped Faraday optical rotation glass
  • Preparation method of high erbium-doped Faraday optical rotation glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: 1) at first, according to mass fraction with 65% Er 2 o 3 , 20% Ga 2 o 3 , 5% B 2 o 3 , 5% SiO 2 , 1.9% CeO 2 , 0.1% Sb 2 o 3 , 0.5% ZnO, 0.5% ZrO 2 and 2% Al 2 o 3 After mixing evenly, a batch material is formed;

[0019] 2) Then, add half of the batch material into the corundum crucible that has been heated to 1250°C; then, raise the temperature to 1450°C for 10 minutes, and keep it warm for 20 minutes; then add the remaining batch material to the corundum crucible, and pass it for 10 minutes Raise the temperature to 1500°C, keep it warm for 60 minutes, stir the molten glass with a stirring rod for 1 minute, and raise the temperature to 1500°C again after 10 minutes, after holding it for 60 minutes, stir the molten glass with a stirring rod for 1 minute again, and pass it again for 10 minutes Raise the temperature to 1450°C and keep it warm for 30 minutes, then pour the molten glass into a graphite mold preheated to 500°C for molding;

[002...

Embodiment 2

[0024] Embodiment 2: 1) at first, according to mass fraction with 60% Er 2 o 3 , 22% Ga2 o 3 , 8% B 2 o 3 , 5% SiO 2 , 1.9% CeO 2 , 0.1% Sb 2 o 3 , 0.5% ZnO, 0.5% ZrO 2 and 2% Al 2 o 3 After mixing evenly, a batch material is formed;

[0025] 2) Then, add half of the batch material into the corundum crucible that has been heated to 1250°C; then, raise the temperature to 1450°C for 10 minutes, and keep it warm for 20 minutes; then add the remaining batch material to the corundum crucible, and pass it for 10 minutes Raise the temperature to 1450°C, keep it warm for 60 minutes, stir the molten glass with a stirring rod for 1 minute, and raise the temperature to 1450°C again after 10 minutes. Raise the temperature to 1400°C and keep it warm for 30 minutes, then pour the molten glass into a graphite mold preheated to 500°C for molding;

[0026] 3) Finally, put the molded sample into a muffle furnace at 650°C for 3 hours; finally, cool the sample to room temperature at a...

Embodiment 3

[0028] Embodiment 3: 1) at first, according to mass fraction with 62% Er 2 o 3 , 16% Ga 2 o 3 , 11% B 2 o 3 , 5% SiO 2 , 2% CeO 2 , 0.1% Sb 2 o 3 , 0.9% ZnO, 1% ZrO 2 and 2% Al 2 o 3 After mixing evenly, a batch material is formed;

[0029] 2) Then, add half of the batch material into the corundum crucible that has been heated to 1250°C; then, raise the temperature to 1450°C for 10 minutes, and keep it warm for 20 minutes; then add the remaining batch material to the corundum crucible, and pass it for 10 minutes Raise the temperature to 1480°C, keep it warm for 60 minutes, stir the molten glass with a stirring rod for 1 minute, and raise the temperature to 1480°C again after 10 minutes. Raise the temperature to 1400°C and keep it warm for 30 minutes, then pour the molten glass into a graphite mold preheated to 500°C for molding;

[0030] 3) Finally, put the molded sample into a muffle furnace at 660°C for 3 hours; finally, cool the sample to room temperature at a ...

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Abstract

The invention discloses a preparation method of high erbium-doped Faraday optical rotation glass. The preparation method comprises the following steps of: firstly, uniformly mixing Er2O3, Ga2O3, B2O3, SiO2, CeO2, Sb2O3, ZnO, ZrO2 and Al2O3 to obtain a batch; secondly, heating the batch to obtain molten glass, and pouring the molten glass into a graphite grinding tool which is heated to 500 DEG C and forming; at last, feeding a formed test sample into a muffler furnace, thermally insulating, and cooling the test sample to room temperature to obtain the high erbium-doped Faraday optical rotation glass. According to the invention, through high-temperature fusion, the high erbium-doped Faraday optical rotation glass is prepared under large degree of supercooling, the prepared Faraday magneto-optical glass has high content of rare earth erbium oxide, excellent glass forming property, remarkable Faraday effect and large Verdet constant, and the test sample has high light transmittance in a visible light range, and excellent heat stability and chemical stability. The preparation process has the advantages of simple operation process, low founding temperature, small high-temperature viscosity in the glass fusing process, short fusing time, excellent forming property, low cost, energy conservation and environmental friendliness and is suitable for industrial production.

Description

technical field [0001] The present invention relates to a preparation method of Faraday optical rotation glass, in particular to a preparation method of Faraday optical rotation glass with high content of rare earth erbium oxide. Background technique [0002] Magneto-optical materials are the core materials of an important high-tech intensive product in the optoelectronic high-tech field, mainly including magneto-optic crystal materials and amorphous materials. Magneto-optical crystals have a high Vedert constant and good magneto-optical properties, but the inherent defects of crystals, such as not being suitable for making large-volume blocks, not being able to form complex shapes, and birefringence due to crystal anisotropy, etc. Its scope of application is greatly limited. Compared with magneto-optic crystals, magneto-optic glass has the following advantages: ①The matrix is ​​easy to change: the glass composition can be changed in a wide range, adding different types and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C4/00C03C3/068
Inventor 郭宏伟董继先王顺逆殷海荣高档妮刘新年刘盼李启甲
Owner SHAANXI UNIV OF SCI & TECH
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