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Magnetic rotation glass and its preparation technology

A preparation process, magneto-optical technology, applied in the direction of glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., to achieve the effect of good machinery, high performance and light weight

Inactive Publication Date: 2007-07-18
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 2. Verdet constant is relatively low

Method used

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  • Magnetic rotation glass and its preparation technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] 1) 20.0Tb by component 2 o 3 / 40.0B 2 o 3 +SiO2 2 / 10.0Al 2 o 3 / 16.5ZnO / 5.0ZrO 2 / 2.5InF 3 / 3.6AlF 3 +MgF 2 +CaF 2 / 2.4TiO 2 Get raw materials, mix evenly, weigh 500 grams of raw materials.

[0100] 2) Heating the platinum crucible in an electric furnace and heating it with a silicon carbide rod until the furnace temperature is 1220°C, then adding raw materials one by one.

[0101] 3) Continue to heat the electric furnace, and stir the molten glass for 3 hours at 1350°C.

[0102] 4) When the furnace temperature is lowered to 1280°C, pour the molten glass into the preheated mold.

[0103] 5) Precision annealing at 580°C in an annealing furnace.

Embodiment 2

[0105] 25.0Tb by component 2 o 3 / 50.0B 2 o 3 +SiO2 2 / 10.0ZnO / 2.5ZrO 2 / 0.5InF 3 / 12.0AlF 3 +MgF 2 +CaF 2 / Take the raw material, add the material when the furnace temperature reaches 1200°C, stir the molten glass for 3.5 hours when the temperature reaches 1320°C, pour the molten glass into the preheated copper mold at 1250°C, and precisely anneal in the annealing furnace at 580°C.

Embodiment 3

[0107] 30.0Tb by component 2 o 3 / 48.0B 2 o 3 +SiO2 2 / 15.0Al 2 o 3 / 4.5ZnO / 1.0ZrO 2 / 1.0InF 3 / 3.5TiO 2 Take the raw material, add the material when the furnace temperature is 1280°C, stir the glass melt for 4.5 hours when it reaches 1400°C, pour the glass melt into the preheated copper mold at 1300°C, and precisely anneal in the annealing furnace at 650°C.

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Abstract

This invention relates to a magnetic optical rotation glass, its components to molar percentage are: Tb2O3: 15 ~35 shares; B2O3 + SiO2: 40 ~ 80; Al2O3: 0 ~ 15; ZnO:0 ~ 30; ZrO2:0 ~ 6; AlF3 + MgF2+CaF2: 0 ~12; TiO2:0 ~ 10; InF3:0.5 ~ 7. First mix the raw materials according to composition; Preheat electric furnace to 1200 to 1300 deg C, add the mixed materials in the platinum crucible, when to 1350 to 1410 deg mix glass liquid for 3~ 5h; Reduce temperature to 1250 to 1350 deg C, pour glass liquid into the mold, precisely annealing in the annealing furnace. This invention use one time melting way, solve the problem of high temperature of glass clarification and leveling in the background technology, Rumsfeld constant is higher than the international common terbium magneto-optical glass, much higher than the magneto-optical glass containing cerium.

Description

technical field [0001] The invention relates to a magneto-optical material, which can be widely used as a magneto-optic isolator, a magneto-optic modulator, a magneto-optic switch, a magneto-optic sensor, etc., and is an irreplaceable material for a high-performance large-diameter Faraday rotator. Specifically relates to a terbium-containing magneto-optical glass and a preparation process thereof. Background technique [0002] Magnetic optical glass, also known as Faraday optical glass, is a special optical glass with high transparency and magneto-optic effect. The magneto-optical effect is a phenomenon in which the polarization plane of polarized light rotates when it passes through a substance with magneto-optical properties in a magnetic field. [0003] Magneto-optical glass can be used to make magneto-optical isolators, magneto-optic modulators, magneto-optic switches, magnetic field measurement and current measurement sensors for high-voltage transmission lines in opti...

Claims

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Application Information

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IPC IPC(8): C03C3/066C03C3/112C03B5/235
CPCC03C3/068C03C3/115C03C3/118
Inventor 邹快盛李玮楠陆敏赵卫
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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