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Up-conversion luminescence transparent ferroelectric ceramic material, preparation method and application thereof

A ferroelectric ceramic, transparent technology, applied in the field of ceramic materials, can solve problems such as physical health and environmental impact

Active Publication Date: 2019-07-23
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the mainly used transparent ferroelectric ceramics are lead-based materials based on lead zirconate titanate (PZT). Although these lead-based transparent ferroelectric ceramics have good electrical and The volatilization of lead in the process has a great impact on people's health and the environment

Method used

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  • Up-conversion luminescence transparent ferroelectric ceramic material, preparation method and application thereof
  • Up-conversion luminescence transparent ferroelectric ceramic material, preparation method and application thereof

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preparation example Construction

[0025] The present invention also provides a preparation method for the up-conversion luminescent transparent ferroelectric ceramic material described in the above technical solution, comprising the following steps:

[0026] (1) According to the stoichiometric ratio of the up-conversion luminescent transparent ferroelectric ceramics, the raw materials potassium carbonate, sodium carbonate, niobium pentoxide, strontium carbonate, ytterbium oxide and M 2 o 3 After mixing, first-level ball milling treatment and first-level pre-sintering treatment are carried out successively, and then cooled to obtain a first-level ceramic powder; the M 2 o 3 for Er 2 o 3 or Ho 2 o 3 ;

[0027] (2) The primary ceramic powder obtained in the step (1) is sequentially subjected to secondary ball milling and secondary pre-sintering, and then cooled to obtain a secondary ceramic powder;

[0028] (3) The secondary ceramic powder obtained in the step (2) is sequentially granulated, pressed and si...

Embodiment 1

[0052] Potassium sodium niobate-ytterbium strontium niobate doped with rare earth holmium up-conversion luminescent transparent ferroelectric ceramics: 0.8K 0.5 Na 0.5 NbO 3 -0.2Sr(Yb 0.5 Nb 0.5 )O 3 -0.01Ho

[0053] (1) Ingredients: weigh 2.7739g K 2 CO 3 (99.5%), 2.1243g Na 2 CO 3 (99.8%), 11.9625gNb 2 o 5 (99.99%), 2.9550g SrCO 3 (99.9%), 1.9703gYb 2 o 3 (99.95%) and 0.1892g Ho 2 o 3 (99.99%) raw material.

[0054] (2) Ball milling: put the weighed raw materials into ball mill jars with zirconium balls of different sizes (5 and 8 mm in diameter), and then add 40 mL of ethanol as a solvent. Then ball milled on a drum mill for 24 hours.

[0055] (3) Drying and sieving: put the ball-milled raw material powder into an oven at 70°C and dry for 12-15 hours until the alcohol in the tank evaporates to dryness, and then dry at 90°C for 5 hours. Finally, pass through a 100-mesh sieve.

[0056] (4) Pre-burning: Put the dried and sieved raw material powder in a cruci...

Embodiment 2

[0066] Potassium sodium niobate-ytterbium strontium niobate doped with rare earth erbium up-conversion luminescent transparent ferroelectric ceramics: 0.8K 0.5 Na0.5 NbO 3 -0.2Sr(Yb 0.5 Nb 0.5 )O 3 -0.01Er

[0067] (1) Ingredients: weigh 2.7739g K 2 CO 3 (99.5%), 2.1243g Na 2 CO 3 (99.8%), 11.9625gNb 2 o 5 (99.99%), 2.9550g SrCO 3 (99.9%), 1.9703gYb 2 o 3 (99.95%) and 0.1913g Er 2 o 3 (99.99%) raw material.

[0068] (2) Ball milling: put the weighed raw materials into ball milling jars with zirconium balls of different sizes, and then add 40 mL of ethanol as a solvent. Then ball milled on a drum mill for 24 hours.

[0069] (3) Drying and sieving: put the ball-milled raw material powder into an oven at 70°C and dry for 12-15 hours until the alcohol in the tank evaporates to dryness, and then dry at 90°C for 5 hours. Finally, pass through a 100-mesh sieve.

[0070] (4) Pre-burning: Put the dried and sieved raw material powder in a crucible, raise the temperatur...

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Abstract

The invention provides an up-conversion luminescence transparent ferroelectric ceramic material and a preparation method and an application thereof, and belongs to the field of ceramic materials. Thestructural formula of the ceramic material provided by the invention is (1-x)K0.5Na0.5NbO3-xSr(Yb0.5Nb0.5)O3-yM, wherein M is Er or Ho, x = 0.05-0.35, y = 0.001-0.01. According to the ceramic materialprovided by the invention, the K0.5Na0.5NbO3 (KNN) ferroelectric ceramic is used as a matrix, and after the second component Sr(Yb0.5Nb0.5)O3 is subjected to solid solution, the ceramic material hastransparent performance. On the basis of the mentioned facts, the ceramic material has the up-conversion photoluminescence property by doping rare earths, Er or Ho. The ceramic material provided by the invention has relatively good up-conversion luminescence property and ferroelectric property at the same time, is relatively good in light transmittance, and is a multifunctional ceramic material.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to an up-conversion luminescent transparent ferroelectric ceramic material and a preparation method and application thereof. Background technique [0002] With the continuous development of miniaturization and integration of electronic components, people's demand for ferroelectric ceramics is also increasing. Due to the advantages of good optical transparency and ferroelectricity, transparent ferroelectric ceramics have been widely used in electro-optic fields such as optical switches, optical attenuators, and memory elements. At present, the mainly used transparent ferroelectric ceramics are lead-based materials based on lead zirconate titanate (PZT). Although these lead-based transparent ferroelectric ceramics have good electrical and The volatilization of lead in the process has a great impact on people's health and the environment. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/495C04B35/622
CPCC04B35/495C04B35/622C04B2235/3201C04B2235/3213C04B2235/3224C04B2235/3251C04B2235/5427C04B2235/602C04B2235/656C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/9653
Inventor 许积文孙亚兵王华杨玲周尚菊丘伟
Owner GUILIN UNIV OF ELECTRONIC TECH
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