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Rear earth doped non-fullness tungsten bronze luminescence ferroelectric material and preparation method thereof

A ferroelectric material and rare earth doping technology, which is applied in the field of functional ceramic materials, can solve the problems of unreported luminescence characteristics, achieve excellent luminescence performance, enhance the dielectric constant, and facilitate large-scale industrialization.

Inactive Publication Date: 2015-11-04
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the rare earth europium ion (Eu 3+ ) doped non-filled tungsten bronze Ba 1 LaTiNb 9 o 30 The luminescent properties of the material have not been reported

Method used

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  • Rear earth doped non-fullness tungsten bronze luminescence ferroelectric material and preparation method thereof
  • Rear earth doped non-fullness tungsten bronze luminescence ferroelectric material and preparation method thereof
  • Rear earth doped non-fullness tungsten bronze luminescence ferroelectric material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of Ba 1 La 1-x Eu x TiNb 9 o 30 , where x=0, the preparation method is as follows:

[0032] Analytical grade BaCO 3 (99%), TiO 2 (99%), Nb 2 o 5 (99%), high-purity La 2 o 3 (99.99%) is raw material, carries out proportioning, weighs various raw materials according to molar ratio. Using analytically pure absolute ethanol as the medium, the prepared raw materials were placed in an agate jar, and ball milled on a planetary ball mill for 24 hours. The ball-milled slurry was placed in a beaker, and dried in an oven for 12 hours at a drying temperature of 95 degrees to obtain a dried powder. Grind the dried powder with an agate mortar, then put it in a corundum crucible, put it into a box furnace, heat it up to 1250-1300 degrees for 8-12 hours, and then stop the program after cooling down to 500 degrees, and cool down with the furnace Then ball mill and dry in the same way. The dried powder is granulated, shaped, and finally placed in a corundum boat ...

Embodiment 2

[0035] Preparation of Ba 4 La 1-x Eu x TiNb 9 o 30 , wherein x=0.5, the preparation method is as follows:

[0036] Analytical grade BaCO 3 (99%), TiO 2 (99%), Nb 2 o 5 (99%), high-purity La 2 o 3(99.99%), Eu 2 o 3 (99.99%) is raw material, carries out proportioning, weighs various raw materials according to molar ratio. Using analytically pure absolute ethanol as the medium, the prepared raw materials were placed in an agate jar, and ball milled on a planetary ball mill for 24 hours. The ball-milled slurry was placed in a beaker, and dried in an oven for 12 hours at a drying temperature of 95 degrees to obtain a dried powder. Grind the dried powder with an agate mortar, then put it in a corundum crucible, put it into a box furnace, heat it up to 1250-1300 degrees for 8-12 hours, and then stop the program after cooling down to 500 degrees, and cool down with the furnace Then ball mill and dry in the same way. The dried powder is granulated, shaped, and finally pl...

Embodiment 3

[0039] Preparation of Ba 1 La 1-x Eu x TiNb 9 o 30 , where x=1, the preparation method is as follows:

[0040] Analytical grade BaCO 3 (99%), TiO 2 (99%), Nb 2 o 5 (99%), high-purity grade Eu 2 o 3 (99.99%) is raw material, carries out proportioning, weighs various raw materials according to molar ratio. Using analytically pure absolute ethanol as the medium, the prepared raw materials were placed in an agate jar, and ball milled on a planetary ball mill for 24 hours. The ball-milled slurry was placed in a beaker, and dried in an oven for 12 hours at a drying temperature of 95 degrees to obtain a dried powder. Grind the dried powder with an agate mortar, then put it in a corundum crucible, put it into a box furnace, heat it up to 1250-1300 degrees for 8-12 hours, and then stop the program after cooling down to 500 degrees, and cool down with the furnace Then ball mill and dry in the same way. The dried powder is granulated, shaped, and finally placed in a corundum...

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Abstract

The invention discloses a rear earth doped non-fullness tungsten bronze luminescence ferroelectric material and a preparation method thereof. The chemical formula of the rear earth doped non-fullness tungsten bronze luminescence ferroelectric material is Ba1La[1-x]EuxTiNb9O30, wherein x is larger than or equal to 0 and less than or equal to 1. According to the invention, Ba1La[1-x]EuxTiNb9O30 porcelain is prepared by adopting a simple solid-phase reaction method, so cost is low, operation is convenient, and large-scale production is facilitated. The Ba1La[1-x]EuxTiNb9O30 porcelain has good luminescence performance and also has good dielectric property and ferroelectric property, is a novel and important multifunctional porcelain material and has wide application prospect in the field of photoelectric materials.

Description

technical field [0001] The invention relates to the field of functional ceramic materials, in particular to a non-filled tungsten bronze luminescent dielectric ferroelectric material and a preparation method. Background technique [0002] Due to its important applications in microwave communication, sensors, transducers, ferroelectric information storage and other technical fields, non-filled tungsten bronze materials have attracted the research interest of many researchers in recent years. Current scientific research mainly focuses on the electrical properties of non-filled tungsten bronze materials, and rarely considers other functional properties. However, with the development of modern science and technology, the requirements for multifunctional devices are getting higher and higher, which requires the development of new materials with two or more functions at the same time, so as to develop new devices that can realize multiple functions at the same time. Therefore, in...

Claims

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Application Information

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IPC IPC(8): C04B35/495C04B35/622
Inventor 魏通安冬敏
Owner CIVIL AVIATION UNIV OF CHINA
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