Energy-saving luminescent ceramic and preparation method thereof
A ceramic and ceramic powder technology, which is applied in the field of energy-saving luminous ceramics and its preparation, can solve the problems of unstable light storage performance and poor luminous performance, and achieve good light storage performance, long afterglow time, and high mechanical strength.
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[0035] Correspondingly, the embodiment of the present invention also provides a method for preparing an energy-saving luminescent ceramic. The method comprises the steps of:
[0036] S01. Weigh each component according to the energy-saving luminous ceramics;
[0037] S02. Mix the basic ceramic powder and the light-storing luminescent powder to form a first mixture;
[0038] S03. Adding forming aids to the first mixture, sieving, pressing and forming, drying, and one-time firing into energy-saving luminescent ceramics.
[0039] Specifically, the energy-saving luminescent ceramics in the above step S01 and the preferred content and types of its components are as described above, and will not be repeated here to save space.
[0040] Specifically, in the above step S02, the basic ceramic powder and the light-storing luminescent powder are mixed uniformly to form a first mixture. The mixing method can be conventional mixing methods such as solid-phase mixing and other methods, t...
Embodiment 1
[0048] An energy-saving luminescent ceramic, the raw materials of which include basic ceramic powder and light-storing luminescent powder. Among them, the content of the basic ceramic powder is SiO 2 68.61%; Al 2 o 3 6.89%; B 2 o 3 8.3%; Li 2 O 0.01%; K 2 O1.42%; CaO4.7%; Na 2 O 5.86%; ZnO 1.89%; BaO 2.32%; after mixing the above components evenly, melt them at 950°C, and grind them with a ball mill to prepare the basic ceramic powder; the luminescent powder is made of rare earth doped strontium aluminate Rare earth phosphor is SrAl 2 o 4 :(Eu 2+ 、Dy 3+) .
[0049] Raw material formula and preparation method of energy-saving luminescent ceramics: take 70 parts of the basic ceramic powder prepared above and 30 parts of light-storing luminescent powder, mix them evenly, then add 1 part of molding aid, and mix them to make a 25-mesh sieve. The powder is formed by semi-dry pressing, dried in an oven at 50°C for 1 hour, and fired at 950°C in a neutral atmosphere to f...
Embodiment 2
[0051] An energy-saving luminescent ceramic, the raw materials of which include basic ceramic powder and light-storing luminescent powder. Wherein, the content of the basic ceramic powder, the preparation method and the added substances of the light-storing luminescent powder are the same as those described in Example 1, and will not be discussed here.
[0052] Raw material formula and preparation method of energy-saving luminous ceramics: take 30 parts of the basic ceramic powder prepared above and 70 parts of light-storing luminescent powder, mix them evenly, then add 5 parts of molding aids, and mix them to make a 25-mesh sieve. The powder is formed by semi-dry pressing, dried in an oven at 50°C for 1 hour, and fired at 1050°C in a neutral atmosphere to form a luminescent ceramic product.
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