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A high temperature resistant silicate luminous ceramic glaze and its preparation method

A technology of luminescent ceramics and silicates, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of glaze defects, high temperature resistance, unfavorable production and application of luminescent ceramics, etc., to achieve good light storage capacity and luminous intensity, The effect of improving high temperature resistance and good luminous brightness

Active Publication Date: 2019-04-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, patents "A kind of energy storage luminescent ceramic glaze" (CN1202472A) and "non-radioactive environmental protection energy storage luminescent ceramic glaze" (CN1473796A), their illuminants use rare earth ions to activate aluminate materials, because aluminate luminescent materials It is easy to hydrolyze when it meets water, and the firing temperature does not exceed 900°C, it is difficult to withstand high temperature, and it is easy to produce glaze defects when firing, which is not conducive to the production and application of luminous ceramics (because the firing temperature of ceramics generally needs to be above 1200°C)

Method used

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  • A high temperature resistant silicate luminous ceramic glaze and its preparation method
  • A high temperature resistant silicate luminous ceramic glaze and its preparation method
  • A high temperature resistant silicate luminous ceramic glaze and its preparation method

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Embodiment 1

[0057] The preparation method of the high temperature resistant silicate luminous ceramic glaze of this embodiment comprises the following steps:

[0058] (1) Preparation of rare earth activated alkaline earth metal silicate luminescent material precursor: the chemical composition expression of rare earth activated alkaline earth metal silicate luminescent material is M 2-x-y MgSi 2 o 7 : Eu x , Ln y , where M is Sr element, Ln is rare earth Dy element, x=0.01, y=0.03. Accurately measure Si(OC 2 h 5 ) 4 60ml, then add 33ml deionized water and 84ml absolute ethanol. Accurately weigh SrCO 3 39.89g, Eu 2 o 3 0.24g, Dy 2 o 3 0.76g, MgO 5.40g were dissolved in appropriate amount of dilute nitric acid solution, H 3 BO 3 4g was dissolved in appropriate amount of deionized water. The above solutions were mixed, stirred evenly to obtain a transparent homogeneous solution, and an appropriate amount of ammonia water was added to adjust the pH value to 1. Then keep st...

Embodiment 2

[0070] The preparation method of the high temperature resistant silicate luminous ceramic glaze of this embodiment comprises the following steps:

[0071] (1) Preparation of rare earth activated alkaline earth metal silicate luminescent material precursor: the chemical composition expression of rare earth activated alkaline earth metal silicate luminescent material is M 2-x-y MgSi 2 o 7 : Eu x , Ln y , where M is Sr element, Ln is rare earth Dy element, x=0.01, y=0.03. Accurately measure Si(OC 2 h 5 ) 4 60ml, then add 33ml deionized water and 84ml absolute ethanol. Accurately weigh SrCO 3 39.89g, Eu 2 o 3 0.24g, Dy 2 o 3 0.76g, MgO 5.40g were dissolved in appropriate amount of dilute nitric acid solution, H 3 BO 3 4g was dissolved in appropriate amount of deionized water. The above solutions were mixed and stirred evenly to obtain a transparent homogeneous solution, and an appropriate amount of ammonia water was added to adjust the pH value to 5. Then keep...

Embodiment 3

[0083] The preparation method of the high temperature resistant silicate luminous ceramic glaze of this embodiment comprises the following steps:

[0084] (1) Preparation of rare earth activated alkaline earth metal silicate luminescent material precursor: the chemical composition expression of rare earth activated alkaline earth metal silicate luminescent material is M 2-x-y MgSi 2 o 7 : Eu x , Ln y , where M is Sr element, Ln is rare earth Dy element, x=0.01, y=0.03. Accurately measure Si(OC 2 h 5 ) 4 60ml, then add 33ml deionized water and 84ml absolute ethanol. Accurately weigh SrCO 3 39.89g, Eu 2 o 3 0.24g, Dy 2 o 3 0.76g, MgO 5.40g were dissolved in appropriate amount of dilute nitric acid solution, H 3 BO 3 4g was dissolved in appropriate amount of deionized water. The above solutions were mixed and stirred evenly to obtain a transparent homogeneous solution, and an appropriate amount of ammonia water was added to adjust the pH value to 10. Then kee...

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Abstract

The invention discloses a high-temperature-resistant silicate luminescent ceramic glaze and a preparing method thereof. The luminescent ceramic glaze is mainly prepared from a rare-earth-activated alkaline-earth-metal-silicate luminescent material and a basis glaze in a sintered mode. According to the high-temperature-resistant silicate luminescent ceramic glaze and the preparing method thereof, the high temperature resistance of the luminescent ceramic glaze is improved in the modes that luminescent crystals are generated through the glaze in the sintering process, and luminescent powder is subjected to covering modification, and therefore the application field of the luminescent ceramic glaze is expanded.

Description

technical field [0001] The invention relates to the field of luminescent ceramic glazes, in particular to a high-temperature-resistant silicate luminescent ceramic glaze and a preparation method thereof. Background technique [0002] Luminous ceramic glaze is a kind of ceramic glaze that is applied on the surface of the ceramic body and has a sustainable luminous function after being fired at a certain temperature, and can be used in the production of luminous products. This luminescent product can store sunlight, light, etc., and slowly release the stored energy in the form of visible light at night or in a dark environment. This luminescence can last for several hours or even dozens of hours. , emergency instructions, traffic instructions, architectural decoration and other fields have broad application prospects. [0003] At present, the research on luminescent ceramic glazes mainly focuses on sulfide luminescent ceramic glazes and aluminate luminescent ceramic glazes, b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/14C04B41/86C09K11/59
CPCC03C8/14C04B41/5022C04B41/86C04B2235/963C04B2235/9646C09K11/7792
Inventor 税安泽熊敏高小云胡松涛
Owner SOUTH CHINA UNIV OF TECH
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