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.
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[0030] Example 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] Use analytical grade BaCO 3 (99%), TiO 2 (99%), Nb 2 O 5 (99%), high purity La 2 O 3 (99.99%) is the raw material, and various raw materials are weighed according to the molar ratio. Using analytically pure absolute ethanol as a medium, the prepared raw materials are placed in an agate tank and ball milled on a planetary ball mill. The milling time is 24 hours. Put the ball-milled slurry in a beaker and dry it in an oven for 12 hours and a drying temperature of 95 degrees to obtain a dried powder. Grind the dried powder with an agate mortar, then place it in a corundum crucible, put it in a box furnace, continue to heat up to 1250-1300 degrees, pre-fire for 8-12 hours, cool down to 500 degrees, and terminate the program, then cool down with the furnace Then ball mill and dry in the same way. The dried powder is granulated, shaped, and finally placed i...
Example Embodiment
[0034] Example 2
[0035] Preparation of Ba 4 La 1-x Eu x TiNb 9 O 30 , Where x=0.5, the preparation method is as follows:
[0036] Use 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 the raw material, and various raw materials are weighed according to the molar ratio. Using analytically pure absolute ethanol as a medium, the prepared raw materials are placed in an agate tank and ball milled on a planetary ball mill. The milling time is 24 hours. Put the ball-milled slurry in a beaker and dry it in an oven for 12 hours and a drying temperature of 95 degrees to obtain a dried powder. Grind the dried powder with an agate mortar, then place it in a corundum crucible, put it in a box furnace, continue to heat up to 1250-1300 degrees, pre-fire for 8-12 hours, cool down to 500 degrees, and terminate the program, then cool down with the furnace Then ball mill and dry in the same way. The dried powder is granulated, shaped,...
Example Embodiment
[0038] Example 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] Use analytical grade BaCO 3 (99%), TiO 2 (99%), Nb 2 O 5 (99%), high purity Eu 2 O 3 (99.99%) is the raw material, and various raw materials are weighed according to the molar ratio. Using analytically pure absolute ethanol as a medium, the prepared raw materials are placed in an agate tank and ball milled on a planetary ball mill. The milling time is 24 hours. Put the ball-milled slurry in a beaker and dry it in an oven for 12 hours and a drying temperature of 95 degrees to obtain a dried powder. Grind the dried powder with an agate mortar, then place it in a corundum crucible, put it in a box furnace, continue to heat up to 1250-1300 degrees, pre-fire for 8-12 hours, cool down to 500 degrees, and terminate the program, then cool down with the furnace Then ball mill and dry in the same way. The dried powder is granulated, shaped, and finally placed i...
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