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Blue mechanoluminescent ceramic material and preparation method thereof

A ceramic material and luminescence technology, applied in the field of ceramics, can solve problems such as weak luminous intensity and difficulty in low-light detection, achieve high compressive strength and enhance the effect of luminescence

Active Publication Date: 2018-03-09
赣州中蓝稀土新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome a series of problems such as the weak luminous intensity of the mechanoluminescent material in the prior art and the difficulty in low-light detection, the present invention provides a blue mechanoluminescent ceramic material and a preparation method thereof. The ceramic has compressive strength High, obvious mechanoluminescent effect, etc., can be used for pressure sensing components in pressure sensors

Method used

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  • Blue mechanoluminescent ceramic material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0127] A blue mechanoluminescent ceramic material with a chemical composition of Ca 0.98 Al 3 o 4 N: 0.01Eu 2+ , 0.01Nd 3+ .

[0128] With high purity CaCO 3 、Al 2 o 3 , AlN, Eu 2 o 3 and Nd 2 o 3 As a raw material, according to the chemical composition Ca 0.98 Al 3 o 4 N:0.01Eu 2+ , 0.01Nd 3+ The ratio of each element in the formula is accurately weighed raw materials; agate balls are used as grinding balls, absolute ethanol is used as a ball milling medium, agate balls, absolute ethanol and raw materials are put into a ball milling tank at the same time, and ball milling is carried out on a planetary ball mill. feed for 5 hours to form a slurry-like mixture, the mass ratio of the absolute ethanol to the raw material is 2:3; the obtained slurry-like mixture is placed in an oven, and dried for 5 hours at 80 ° C, and then The raw materials obtained after drying are passed through a 200-mesh sieve to obtain uniformly mixed raw materials; a certain amount of unifo...

Embodiment 2

[0130] A blue mechanoluminescent ceramic material with a chemical composition of Ca 0.98 Al 3 o 4 N: 0.01Eu 2+ , 0.01Sm 3+ .

[0131] With high purity CaCO 3 、Al 2 o 3 , AlN, Eu 2 o 3 and Sm 2 o 3 As a raw material, according to the chemical composition Ca 0.98 Al 3 o 4 N:0.01Eu 2+ , 0.01Sm 3+ The ratio of each element in the formula is accurately weighed raw materials; agate balls are used as grinding balls, absolute ethanol is used as a ball milling medium, agate balls, absolute ethanol and raw materials are put into a ball milling tank at the same time, and ball milling is carried out on a planetary ball mill. feed for 10 hours to form a slurry-like mixture, the mass ratio of the absolute ethanol to the raw material is 2:3; the obtained slurry-like mixture is placed in an oven, and dried for 4 hours at 80 ° C, and then The raw materials obtained after drying are passed through a 200-mesh sieve to obtain uniformly mixed raw materials; a certain amount of unif...

Embodiment 3

[0133] A blue mechanoluminescent ceramic material with a chemical composition of Ca 0.92 Al 3 o 4 N: 0.04Eu 2+ , 0.02Nd 3+ , 0.02Sm 3 + .

[0134] With high purity CaCO 3 、Al 2 o 3 , AlN, Eu 2 o 3 、Nd 2 o 3 and Sm 2 o 3 As a raw material, according to the chemical composition Ca 0.92 Al 3 o 4 N: 0.04Eu 2+ , 0.02Nd 3+ , 0.02Sm 3+ The ratio of each element in the formula is accurately weighed raw materials; agate balls are used as grinding balls, absolute ethanol is used as a ball milling medium, agate balls, absolute ethanol and raw materials are put into a ball milling tank at the same time, and ball milling is carried out on a planetary ball mill. feed for 20 hours to form a slurry-like mixture, the mass ratio of the absolute ethanol to the raw material is 2:3; the obtained slurry-like mixture is placed in an oven, and dried at 80°C for 6 hours, and then The raw materials obtained after drying are passed through a 200-mesh sieve to obtain uniformly mixed ...

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Abstract

The invention discloses a blue mechanoluminescent ceramic material and a preparation method thereof. The invention aims at providing a pressure sensing material with a mechanoluminescent property andbelongs to the technical field of ceramics. The general formula of the ceramic is Ca<1-x-y>Al<3>O<4>N:xEu<2+>,yRe<3+>, wherein the Re is one or a combination of two selected from Nd and Sm, and the value ranges of the x and the y are as follows: 0.01<=x<=0.1, and 0.01<=y<=0.2. The luminescence center of the ceramic is Eu<2+> ions, and with the introduction of rare-earth impurity ions such as Nd<3+> and Sm<3+> and the like, the mechanoluminescent effect of the ceramic can be effectively enhanced. The ceramic provided by the invention has the characteristics of high compressive strength, obviousmechanoluminescent effect and the like, and can be used in pressure sensing parts in a pressure sensor.

Description

technical field [0001] The invention belongs to the technical field of ceramics, in particular to a blue electroluminescent ceramic material and a preparation method thereof. Background technique [0002] The physical phenomenon that materials emit visible light under the action of stress, friction, fracture or ultrasonic vibration is called mechanoluminescence. Like long-lasting luminescence, mechanoluminescence is also a physical phenomenon that has been recognized by human beings for a long time. There are many materials that can produce mechanoluminescence, including organic and inorganic materials, such as sugar crystals, quartz crystals, and the long-lasting material SrAl, which has developed rapidly in recent years. 2 o 4 : Eu et al. Due to the low intensity and short duration of mechanoluminescence of general materials, and the low level of low-light detection technology in the past, the mechanoluminescence phenomenon of materials has not been practically applied....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/44C09K11/64C09D1/00C09D129/04C09D123/08C09D175/04C09D133/12C09D5/22C09D11/03C08J7/04C08L27/06C08K3/34C08K5/12C08L83/04C08L67/02C08L25/06C08L75/04C08L79/08C08L29/04G01L1/24G01L11/02
CPCC09D11/037C09D11/50
Inventor 杨道救
Owner 赣州中蓝稀土新材料科技有限公司
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