Application of Pr3 + doped ceramic in dual-mode mixed anti-counterfeiting and anti-counterfeiting optical device
An optical device and dual-mode technology, applied in optical components, optics, instruments, etc., can solve the problems of easy imitation and single anti-counterfeiting method
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[0054] In actual operation, Pr in the present invention 3+ Doped Ba(Zr 0.16 Mg 0.28 Ta 0.56 )O 3 (with x representing Pr 3+ The preparation method of doping concentration), comprises the steps:
[0055] (a) Weighing: Weigh BaCO according to the molar ratio of Ba, Zr, Mg, Ta and Pr as 1:0.16:0.28:0.56:x 3 , ZrO 2 , MgO, Ta 2 o 5 and Pr 6 o 11 The powder is then mixed with oleic acid, polyvinyl butyral and tetraethyl orthosilicate to obtain a mixture;
[0056] (b) Ball milling: add ethanol and ball milling medium zirconia pellets to the mixture obtained in step (a) and mix, place in an agate ball mill jar, and the ball mill jar is placed in a planetary ball mill, and ball mill for 24 hours; ball mill the treated slurry The body was transferred to a glass dish and dried in an oven at 50 °C.
[0057] (c) Calcination: grind the dried material in step (b) in an agate mortar, put it in a closed alumina crucible after grinding, and calcinate in a box furnace at 900-1200° C...
Embodiment 1
[0061] This embodiment provides Pr with dual-mode mixed anti-counterfeiting function 3+ A method for preparing doped ceramics, comprising the steps of:
[0062] (a) Weighing: Weigh BaCO according to the molar ratio of Ba, Zr, Mg, Ta and Pr as 1:0.16:0.28:0.56:0.005 3 , ZrO 2 , MgO, Ta 2 o 5 and Pr 6 o 11 powder, and then mixed with oleic acid, polyvinyl butyral and tetraethyl orthosilicate to obtain a mixture; wherein, the respective mass of oleic acid, polyvinyl butyral and tetraethyl orthosilicate is respectively 0.5%, 1% and 0.5% of the total mass.
[0063] (b) Ball milling: add ethanol and ball milling medium zirconia balls to the mixture obtained in step (a) and mix, place in an agate ball mill jar, the ball mill jar is placed in a planetary ball mill, and ball mill for 24 hours; wherein, the ethanol is mixed with The mass ratio of the mixture is 1.2:1, the ratio of balls to materials is 1:3, and the ratio of large and small balls is 1:1. The ball-milled slurry wa...
Embodiment 2
[0069] This embodiment provides a high-concentration 2% Pr with dual-mode mixed anti-counterfeiting function 3+ A method for preparing doped ceramics, comprising the steps of:
[0070] (a) Weighing: Weigh BaCO according to the molar ratio of Ba, Zr, Mg, Ta and Pr as 1:0.16:0.28:0.56:0.02 3 , ZrO 2 , MgO, Ta 2 o 5 and Pr 6 o 11 powder, and then mixed with oleic acid, polyvinyl butyral and tetraethyl orthosilicate to obtain a mixture; wherein, the respective mass of oleic acid, polyvinyl butyral and tetraethyl orthosilicate is respectively 0.5%, 1% and 0.5% of the total mass.
[0071] (b) Ball milling: add ethanol and ball milling medium zirconia balls to the mixture obtained in step (a) and mix, place in an agate ball mill jar, the ball mill jar is placed in a planetary ball mill, and ball mill for 24 hours; wherein, the ethanol is mixed with The mass ratio of the mixture is 1.2:1, the ratio of balls to materials is 1:3, and the ratio of large and small balls is 1:1. Th...
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