Cubic fluorite-type Y2Ce2-xCoxO7 ultrafine ceramic pigment and preparation method thereof
A y2ce2-xcoxo7, cubic fluorite technology, applied in the field of fluorite-doped ultra-fine ceramic pigments and its preparation, can solve the problems of unfavorable industrial production, cumbersome operation steps, and difficulty in ensuring quality, and is suitable for large-scale production , The process is simple and controllable, the effect of bright color
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Embodiment 1
[0027] Example 1: A cubic fluorite type Y 2 Ce 2-x co x o 7 The preparation method of superfine ceramic pigment, comprises the following steps:
[0028] (1) According to the molar ratio of Y, Ce, and Co is 2:(1.7~2):(0.3~0), the preferred molar ratio of Y:Ce:Co is 2:(1.7~1.95):(0.3~ 0.05), the molar ratio of Y:(Ce+Co) is 1~1.15:1, more preferably the molar ratio of Y:(Ce+Co) is 1:1, respectively get corresponding yttrium nitrate or cerium nitrate, cobalt nitrate Dissolved in distilled water to obtain a mixed solution;
[0029] (2) Add the mixed solution obtained in the above step (1) to the aqueous solution of glycine, where Gly: (Y+Ce+Co)=(2~3):1, Gly: (Y+Ce+Co):H 2 O=(2~3):1:(300~600);
[0030] (3) Stir the mixed solution in step (2) with a magnetic stirrer at 50°C to 70°C for more than 1 hour, then burn and concentrate at 100°C to 120°C to obtain the precursor powder;
[0031] (4) Finally, the precursor powder obtained in the above step (3) is directly calcined in a ...
Embodiment 2
[0039]Dissolve 1.129 g of yttrium oxide, 4.234 g of cerium nitrate, and 0.073 g of cobalt nitrate into 100 ml of water and stir to obtain solution A. Dissolve 6.006g of glycine into 50ml of water to obtain solution B, pour solution A into solution B, stir at 60°C until clear solution C, and stir for 1.5 minutes at a speed of 80 to 100 rpm with a magnetic stirrer Hour. Then concentrated and burned at 120°C to obtain precursor powder. And the precursor powder was calcined at 600°C for 4 hours to obtain cubic fluorite-doped Y 2 Ce 1.95 co 0.05 o 7 Inorganic ceramic pigments.
Embodiment 3
[0041] Dissolve 7.660g of yttrium nitrate, 8.250g of cerium nitrate, and 0.291g of cobalt nitrate into 100ml of water and stir to obtain solution A. Dissolve 6.006g of glycine into 50ml of water to obtain solution B, pour solution A into solution B, stir at 60°C until clear solution C, and stir at a speed of 80 to 100 rpm for 1.5 hours. Then concentrated and burned at 120°C to obtain precursor powder. And the precursor powder was calcined at 600°C for 4 hours to obtain cubic fluorite-doped Y 2 Ce 1.9 co 0.1 o 7 Inorganic ceramic pigments.
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