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A novel photoluminescence transparent glass-ceramic and its preparation method

A transparent glass and photoluminescence technology, applied in the field of transparent glass ceramics and its preparation, can solve the problems of low surface emission and spatial resolution, difficult to use in tiny devices, etc. Good stability and thermal stability

Active Publication Date: 2021-11-16
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the near-infrared temperature measurement technology is based on the principle of black body radiation to achieve temperature measurement. It is a commonly used method for temperature measurement on the surface of industrial objects, but it has shortcomings such as surface emission and low spatial resolution and is difficult to apply to tiny devices; Raman scattering Temperature measurement is based on the analysis of Raman vibration at different temperatures. This method is only used to measure the temperature of objects with obvious Raman effects; fluorescence temperature measurement is based on the fluorescence temperature-sensitive characteristics of rare earth ions. Because The 4f-4f transition of rare earth ions, which has good luminescent properties, has shown great advantages in optical temperature sensors and is of great significance in temperature sensing

Method used

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  • A novel photoluminescence transparent glass-ceramic and its preparation method
  • A novel photoluminescence transparent glass-ceramic and its preparation method
  • A novel photoluminescence transparent glass-ceramic and its preparation method

Examples

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Comparison scheme
Effect test

example 1

[0029] according to figure 1The experimental flow chart shown in the preparation of the proposed novel photoluminescent Ca of the present invention 8 Eu 2 (PO 4 ) 6 o 2 glass ceramics,

[0030] Step 1, weighing ingredients: calculate and weigh raw materials required for preparing transparent glass ceramics according to the following proportions. The mole percentage is: Na 2 CO 3 25%, CaO 23%, P 2 o 5 6%, H 3 BO 3 44%, Eu 2 o 3 2%, ZrO 2 As a crystal nucleating agent, it is weighed as 1% of the total weight of the batching.

[0031] Step 2, mixing ingredients: Put the raw materials weighed in step 1 into a pre-cleaned ceramic mortar, grind them thoroughly for 1 hour, mix the raw materials evenly, and obtain the batching materials, and put the batching materials in the pre-cleaned ceramic mortar in the crucible.

[0032] Step 3, ingredients melting: Put the ingredients in step 2 into a high-temperature lifting furnace to melt, the melting temperature is 1400°...

example 2

[0041] according to figure 1 The experimental flow diagram shown in the preparation of the proposed novel Ca-containing 8 SM 2 (PO 4 ) 6 o 2 Nanocrystalline photoluminescent glass ceramics,

[0042] Step 1, weighing ingredients: calculate and weigh raw materials required for preparing transparent glass ceramics according to the following proportions. The mole percentage is: Na 2 CO 3 25%, CaO 23.5%, P 2 o 5 6%, H 3 BO 3 44%, Sm 2 o 3 1.5%, ZrO 2 As a crystal nucleating agent, it is weighed as 1% of the total weight of the batching.

[0043] Step 2, mixing ingredients: Put the raw materials weighed in step 1 into a pre-cleaned ceramic mortar, grind them thoroughly for 1 hour, mix the raw materials evenly, and obtain the batching materials, and put the batching materials in the pre-cleaned ceramic mortar in the crucible.

[0044] Step 3, ingredients melting: put the ingredients in step 2 into a high-temperature lifting furnace to melt, the melting temperature...

example 3

[0053] according to figure 1 The experimental flow diagram shown in the preparation of the proposed novel Ca-containing 8 Tb 2 (PO 4 ) 6 o 2 Nanocrystalline photoluminescent glass ceramics,

[0054] Step 1, weighing ingredients: calculate and weigh raw materials required for preparing transparent glass ceramics according to the following proportions. The mole percentage is: Na 2 CO 3 25%, CaO 22%, P 2 o 5 6%, H 3 BO 3 44%, Tb 4 o 7 3%, ZrO 2 As a crystal nucleating agent, it is weighed as 1% of the total weight of the batching.

[0055] Step 2, mixing ingredients: Put the raw materials weighed in step 1 into a pre-cleaned ceramic mortar, grind them thoroughly for 1 hour, mix the raw materials evenly, and obtain the batching materials, and put the batching materials in the pre-cleaned ceramic mortar in the crucible;

[0056] Step 3, ingredients melting: Put the ingredients in step 2 into a high-temperature lifting furnace to melt, the melting temperature is ...

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Abstract

The invention discloses a novel photoluminescent transparent glass ceramic and a preparation method thereof, and belongs to the technical field of using rare earth doped transparent glass ceramics containing phosphate nanocrystals for optical temperature measurement. The glass ceramics with rare earth doped nano crystals are obtained from raw materials through ingredients mixing, ingredients melting, quenching and molding, sample annealing, sample cutting and heat treatment. Transparent glass ceramics have some advantages of both crystal and glass: (1) Compared with glass, transparent glass ceramics can improve the luminous efficiency of rare earth luminescent centers to a certain extent, and the chemical stability and mechanical properties have been greatly improved; (2) ) Compared with crystals, glass-ceramics has a dense structure, no pores, low preparation cost, short synthesis cycle, and easy mass production. The transparent glass-ceramic composition of the invention is simple and easy to obtain, and has the advantages of low preparation cost, high luminous efficiency, high transmittance, high stability, high mechanical properties, adjustable luminescent waveband, and the like.

Description

technical field [0001] The invention relates to a transparent glass ceramic for optical temperature measurement and a preparation method thereof, in particular to a glass ceramic containing a novel crystal and a preparation method thereof. Background technique [0002] Temperature is a physical quantity that expresses how hot or cold an object is, and it is the most measured physical quantity so far. The precise measurement of temperature has very important practical significance and research value in the fields of science and technology, military affairs, and industrial production. For traditional contact thermometers, such as glass liquid thermometers based on the thermal expansion effect of materials, gas thermometers, thermocouple thermometers based on the Seebeck effect, etc., they have the advantages of convenient use, wide measurement range, accurate measurement, and easy data analysis. However, with the rapid development of science and technology, traditional thermo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/02C03C4/12C03C6/00C03B32/02
CPCC03B32/02C03C1/00C03C4/12C03C10/00
Inventor 江莎付绍珂胡潇月陈明月王传婷罗小霞周贤菊
Owner CHONGQING UNIV OF POSTS & TELECOMM
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