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Microcrystalline glass with mechanoluminescence and preparation method thereof

A glass-ceramics and luminescence technology, applied in the field of glass-ceramics, can solve the problems of being unable to meet the various luminescence requirements of mechanoluminescent sensor displays, the color of luminescence and the limitation of the wavelength width of luminescence, etc., so as to facilitate large-scale promotion, The effect of low price and wide range of raw materials

Active Publication Date: 2016-12-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The luminescence of rare earth ions comes from the transition of 4f-4f electron shells. Because of the shielding of the outermost electrons, the color and wavelength width of the luminescence are greatly limited, which cannot meet the requirements of various luminescence required for the display of the mechanoluminescence sensor.

Method used

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  • Microcrystalline glass with mechanoluminescence and preparation method thereof
  • Microcrystalline glass with mechanoluminescence and preparation method thereof
  • Microcrystalline glass with mechanoluminescence and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, the steps for preparing glass-ceramics by the high-temperature melting method and the heat treatment method are as follows:

[0033] (1) Select high purity Na 2 CO 3 , SiO 2 , Ga 2 O 3 , ZnO, MnCO 3 As a raw material, the molar ratio between the raw materials is controlled to Na 2 CO 3 : SiO 2 : Ga 2 O 3 : ZnO: MnCO 3 =5:55:23:16.9:0.1;

[0034] (2) Weigh 40 grams of each raw material according to the ratio described in step (1), grind it in an agate grind for 40 minutes, and then place it in a platinum crucible at 1600°C for 1 hour. Pour the molten glass solution on a copper plate and flatten it with another copper plate, then transfer it to a muffle furnace and keep it at 500°C for 3 hours, then turn off the power supply of the muffle furnace and let the glass drop to room temperature with the furnace. The color is brown glass.

[0035] (3) Put the glass into the muffle furnace, raise the temperature from room temperature to 900°C at a heating rate of 20...

Embodiment 2

[0040] In this embodiment, the steps for preparing glass-ceramics by the high-temperature melting method and the heat treatment method are as follows:

[0041] (1) Select high purity Na 2 CO 3 , SiO 2 , Al 2 O 3 , ZnO, MnCO 3 As a raw material, the molar ratio between the raw materials is controlled to Na 2 CO 3 : SiO 2 : Al 2 O 3 : ZnO: MnCO 3 =5:55:23:16.9:0.1;

[0042] (2) Weigh 40 grams of each raw material according to the ratio described in step (1), grind it in an agate grind for 40 minutes, and then place it in a platinum crucible at 1600°C for 1 hour. Pour the molten glass solution on a copper plate and flatten it with another copper plate, then transfer it to a muffle furnace and keep it at 500°C for 3 hours, then turn off the power supply of the muffle furnace and let the glass drop to room temperature with the furnace. The color is brown glass. Put the glass into the muffle furnace, raise it from room temperature to 900°C at a heating rate of 200°C / h, keep it for 2h, t...

Embodiment 3

[0044] (1) Select high purity Na 2 CO 3 , SiO 2 , Al 2 O 3 , Ga 2 O 3 , ZnO, MnCO 3 As a raw material, the molar ratio between the raw materials is controlled to Na 2 CO 3 : SiO 2 : Al 2 O 3 : Ga 2 O 3 : ZnO: MnCO 3 =5:55:13:10:16.9:0.1;

[0045] (2) Weigh 40 grams of each raw material according to the ratio described in step (1), grind it in an agate grind for 40 minutes, and then place it in a platinum crucible at 1600°C for 1 hour. Pour the molten glass solution on a copper plate and flatten it with another copper plate, then transfer it to a muffle furnace and keep it at 500°C for 3 hours, then turn off the power supply of the muffle furnace and let the glass drop to room temperature with the furnace. The color is brown glass. Put the glass into the muffle furnace, raise it from room temperature to 900°C at a heating rate of 200°C / h, keep it for 2h, then turn off the muffle furnace power supply and let the glass cool to room temperature along with the furnace to obtain transp...

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Abstract

The invention discloses a microcrystalline glass with mechanoluminescence. The microcrystalline glass contains the following components in percentage by mole: 1-20% of Na2CO3, 40-60% of SiO2, 10-30% of trivalent oxide, 0.005-10% of MnCO3 and 10-30% of ZnO. The trivalent oxide is more than one of Al2O3 and Ga2O3. The invention also discloses a preparation method of the microcrystalline glass with mechanoluminescence. The mechanoluminescence wavelength of the microcrystalline glass under the action of applied force is located at 475-575nm, and the emission peak is located at 506nm; and the microcrystalline glass has mechanoluminescence.

Description

Technical field [0001] The invention relates to glass-ceramics, in particular to a glass-ceramics with strong luminescence properties and a preparation method thereof. Background technique [0002] With the development of sensor display technology, Lizhi luminescent materials have attracted more and more people's attention and research due to their great potential application value. Lizhi luminescent materials are expected to be used in many fields such as electronic displays, vacuum fluorescent displays, thin-film luminescent displays, and biomedical disease monitoring. At present, the materials capable of realizing luminescence are mainly crystals doped with rare earth ions and transition metal ions. However, preparing phosphor materials with strong luminescence properties and then mixing and melting them with glass materials, the preparation process is complicated and the preparation cost increases. Glass-ceramic is a kind of hybrid material with nanocrystals distributed in ...

Claims

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Application Information

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IPC IPC(8): C03C10/00C03C10/02C03C4/12C03C6/04
CPCC03C1/00C03C4/12C03C10/0009C03C10/0036
Inventor 周时凤毛倩楠彼山姆格卫鲁于泳泽陈杰杰张建旺邱建荣
Owner SOUTH CHINA UNIV OF TECH
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