Multiphase transparent ceramic, multiphase transparent ceramic optical fiber and preparation method and application of multiphase transparent ceramic

A technology for transparent ceramics and optical fibers, applied in the field of multiphase transparent ceramic optical fibers and their preparation, and multiphase transparent ceramics, achieving the effects of simple preparation process, low equipment requirements, and high luminous efficiency

Active Publication Date: 2020-09-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem of high requirements on temperature, pressure and sintering time in the existing method for preparing transparent ceramic glass, the primary purpose of the present invention is to provide a multi-phase transparent ceramic and its preparation method

Method used

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  • Multiphase transparent ceramic, multiphase transparent ceramic optical fiber and preparation method and application of multiphase transparent ceramic
  • Multiphase transparent ceramic, multiphase transparent ceramic optical fiber and preparation method and application of multiphase transparent ceramic
  • Multiphase transparent ceramic, multiphase transparent ceramic optical fiber and preparation method and application of multiphase transparent ceramic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A preparation method of multiphase transparent ceramics, the preparation steps are as follows:

[0057] (1) Weigh the following component raw materials according to the following molar percentages: 25% SiO 2 , 25% BaCO 3 , 25% Al 2 o 3 , 24.5% LaF 3 , 0.5% Eu 2 o 3 Then fully grind with an agate mortar for 15 minutes;

[0058] (2) Put the uniformly mixed raw materials into an alumina crucible, place them in a high-temperature box furnace at 1500° C. for 30 minutes, and melt them to obtain molten glass;

[0059] (3) Pour molten glass into the formwork for cooling and forming to obtain a transparent glass block;

[0060] (4) Quickly transfer the glass to a muffle furnace, and anneal at 500°C for 48 hours to obtain a precursor glass;

[0061] (5) Cut the precursor glass into the desired size, place it in a muffle furnace for heat treatment, the crystallization temperature is 830°C, hold the temperature for 4 hours, and take it out after returning to room temperatur...

Embodiment 2

[0074] A preparation method of multiphase transparent ceramics, the preparation steps are as follows:

[0075] (1) Weigh the following component raw materials according to the following mole percentage: 30% SiO 2 , 20% BaCO 3 , 30% Al 2 o 3 , 19.9% ​​GdF 3 , 0.1% Eu 2 o 3 Then fully grind it with an agate mortar for 25 minutes;

[0076] (2) Put the uniformly mixed raw materials into an alumina crucible, place them in a high-temperature box furnace at 1550° C. for 60 minutes, and heat them for 60 minutes to melt to obtain a glass melt;

[0077] (3) Pour molten glass into the formwork for rapid cooling and forming to obtain a transparent glass block;

[0078] (4) Quickly transfer the glass to a muffle furnace, and anneal at 650°C for 96 hours to obtain a precursor glass;

[0079] (5) Cut the precursor glass into the desired size, place it in a muffle furnace for heat treatment, the crystallization temperature is 790°C, hold the temperature for 2 hours, and take it out af...

Embodiment 3

[0090] A preparation method of multiphase transparent ceramics, the preparation steps are as follows:

[0091] (1) Weigh the following component raw materials according to the following molar percentages: 40% SiO 2 , 20% BaCO 3 , 25%Al 2 o 3 , 14% BaF 2 , 1% Eu 2 o 3 Then fully grind it with an agate mortar for 25 minutes;

[0092] (2) Put the uniformly mixed raw materials into an alumina crucible, place them in a high-temperature box furnace at 1500°C for 20 minutes, and heat them for 20 minutes to melt to obtain a molten glass;

[0093] (3) Pour molten glass into the formwork for cooling and forming to obtain a transparent glass block;

[0094] (4) Quickly transfer the glass to a muffle furnace, and anneal at 550°C for 96 hours to obtain a precursor glass;

[0095] (5) Cut the precursor glass into the desired size, place it in a muffle furnace for heat treatment, the crystallization temperature is 800°C, the holding time is 2.5h, and take it out after returning to ro...

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Abstract

The invention discloses multiphase transparent ceramic, a multiphase transparent ceramic optical fiber and a preparation method and application of the multiphase transparent ceramic. According to themultiphase transparent ceramic, the transparent ceramic can be prepared under the normal pressure condition through a glass crystallization method, pressurization is not needed, conditions are mild, and crystallization is controllable. The multiphase transparent ceramic is applied to preparation of solid-state light sources, panel display technologies, WLEDs and X-ray detection scintillation materials. Compared with a precursor glass optical fiber material, the multiphase transparent ceramic optical fiber prepared by utilizing the intermediate product (precursor glass) of preparation of the multiphase transparent ceramic has the advantage that the luminous intensity of the ceramic optical fiber is obviously enhanced.

Description

technical field [0001] The invention belongs to the field of preparation of ceramic materials, and in particular relates to a multiphase transparent ceramic, a multiphase transparent ceramic optical fiber and a preparation method and application thereof. Background technique [0002] Transparent ceramics not only have the inherent excellent mechanical properties and mechanical properties of ceramics, but also have the optical properties of glass. The environment similar to the strong crystal field of crystals is a favorable condition for the electron radiation transition of rare earth ions and transition metal ions. The traditional preparation method of transparent ceramics requires complex processes such as powder preparation, molding, and sintering, which have high requirements for temperature, pressure, and sintering time, and strict control is required during the preparation process. Therefore, exploring new transparent ceramic preparation technologies has become a hot a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/16C03B37/027C03B37/012C03B32/02
CPCC03B32/02C03B37/01211C03B37/027C03B37/02727C03C10/16
Inventor 周时凤温绍飞蓝碧蛟杜观昕张伟达杨中民邱建荣
Owner SOUTH CHINA UNIV OF TECH
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