Germanium silicate based elastic stress light-emitting material and preparation method therefor

A technology of luminescent materials and elastic stress, which is applied in luminescent materials, luminescent coatings, chemical instruments and methods, etc., can solve the problems of unstable chemical properties, complicated preparation process, and increased preparation cost, and achieve good repeatability and low cost. Low, less resource consumption effect

Inactive Publication Date: 2015-10-14
TONGJI UNIV
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Problems solved by technology

But the disadvantages are also obvious. The strong afterglow of stress luminescence may cover up the light intensity generated by the weak force signal, making it impossible to distinguish; and the synthesis conditions include atmosphere sintering, which makes the preparation process relatively complicated and the preparation cost is increased; the chemical properties are not enough. stable, easily hydrolyzed

Method used

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  • Germanium silicate based elastic stress light-emitting material and preparation method therefor
  • Germanium silicate based elastic stress light-emitting material and preparation method therefor
  • Germanium silicate based elastic stress light-emitting material and preparation method therefor

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Embodiment

[0020]

[0021] Concrete preparation steps are as follows:

[0022] (1) Selection of raw materials: Zn uses its oxides as raw materials during preparation, Si and Ge elements use their oxides as raw materials, Mn, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Yb Using oxides or carbonates as raw materials, each element is weighed according to its stoichiometric ratio, and then an appropriate amount of absolute ethanol or deionized water is added to the mixed raw materials, and ground in an agate bowl and stirred for 1 to 4 hours to obtain Grind uniform powder;

[0023] (2) Put the uniformly ground powder in an alumina crucible, raise the temperature to 800-1500°C at a rate of 1-10°C / min in the atmosphere or reducing atmosphere, burn for 2-8 hours, and cool down with the furnace;

[0024] (3) Grinding the cooled powder obtained in step (2) for 10 to 30 minutes to obtain the germanosilicate-based high-performance elastic stress luminescent material Zn 2-x Si y Ge 1-y R x o ...

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Abstract

The invention relates to a provided germanium silicate based elastic stress light-emitting material and a preparation method thereof. The light-emitting material uses rare earth elements as an activating agent, the chemical construction formula of the light-emitting material is Zn2-xSiyGe1-yRxO4, wherein x is greater than or equal to 0 and smaller than or equal to 0.10, and y is greater than or equal to 0 and smaller than 1; R represents elements of the activating agent or sensitizing agent, which are selected from one or the combination of Mn, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Yb; and x and y represent molar contents respectively. A stress sensor based on the stress light-emitting material has extremely wide application prospect in all fields of production and life for the stress measurement and monitoring of artificial skin, gas storage devices, personal identification, mechanical parts, building facilities and the like.

Description

technical field [0001] The invention belongs to the technical field of new inorganic functional materials, and relates to a germanosilicate high-performance elastic stress luminescent material and a preparation method thereof. Stress sensors based on stress luminescent materials have a very broad application prospect in various fields of production and life in the stress detection and monitoring of artificial skin, gas storage devices, identification, mechanical parts and building facilities. Background technique [0002] Stress luminescent material is a new type of functional material that produces light emission under the action of a force signal. Stress luminescent materials can be divided into destructive stress luminescent materials and non-destructive stress luminescent materials. Among non-destructive stress luminescent materials with great development and application prospects, elastic stress luminescent materials have the advantages of repeatability, instant respon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/66C08K3/22C09D5/22
Inventor 王旭升赵海峰李俊柴晓娜李艳霞刘茜冯晓敏顾佚毫
Owner TONGJI UNIV
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