Black ceramic and preparing method thereof
A technology of black ceramics and ceramic materials, which is applied in the field of black ceramics and its preparation, can solve the problems of uneven coloring, uneven surface thickness, and prone to silk screen defects of ceramic materials, and achieve accurate coloring, low light transmittance, and easy realization Effect
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Embodiment 1
[0031] A kind of embodiment of the black ceramics of the present invention, the black ceramics described in this embodiment comprises the following mole percentage composition: ceramic material 0.1%, dyeing material 99.9%; Wherein said ceramic material is ZrO 2 , the dyeing material is iron oxide.
[0032] The black ceramic described in this embodiment is prepared by the following method:
[0033] (1) ball milling after ceramic material and dyeing material are mixed, obtains the black ceramic slurry that is dispersed uniformly;
[0034] (2) vacuum defoaming the black ceramic slurry obtained in step (1) at -0.01MPa, and then stale processing;
[0035] (3) Injection-molding the black ceramic slurry processed in step (2) to obtain a black ceramic green body, and then process it into a triangle and sinter it. The sintering temperature is 1200° C. and the holding time is 5 hours to obtain a black ceramic green body;
[0036] (4) Grinding and polishing the black ceramic blank obta...
Embodiment 2
[0038] A kind of embodiment of the black ceramics of the present invention, the black ceramics described in this embodiment comprises the following mole percentage composition: ceramic material 30%, dyeing material 70%; Wherein said ceramic material is Al 2 o 3 , the dyeing material is cobalt nitrate.
[0039] The black ceramic described in this embodiment is prepared by the following method:
[0040] (1) ball milling after ceramic material and dyeing material are mixed, obtains the black ceramic slurry that is dispersed uniformly;
[0041] (2) vacuum defoaming the black ceramic slurry obtained in step (1) at -0.1MPa, and then stale processing;
[0042] (3) Dry press the black ceramic slurry processed in step (2) to obtain a black ceramic biscuit, and then process it into a round shape and sinter it. The sintering temperature is 1700° C. and the holding time is 1 hour to obtain black ceramics blank;
[0043] (4) The black ceramic blank obtained in step (3) is mechanically ...
Embodiment 3
[0045] A kind of embodiment of the black ceramics of the present invention, the black ceramics described in this embodiment comprises the following mole percentage composition: ceramic material 50%, dyeing material 50%; Wherein said ceramic material is ZrO 2 (contains 3% mol of Y 2 o 3 ), the dyeing material is copper oxide.
[0046] The black ceramic described in this embodiment is prepared by the following method:
[0047] (1) ball milling after ceramic material and dyeing material are mixed, obtains the black ceramic slurry that is dispersed uniformly;
[0048] (2) vacuum defoaming the black ceramic slurry obtained in step (1) at -0.06MPa, and then stale processing;
[0049] (3) Tape-cast the black ceramic slurry processed in step (2) to obtain a black ceramic green body, and then process it into a polygonal shape and sinter it. The sintering temperature is 1500° C., and the holding time is 3 hours to obtain a black ceramic green body. ;
[0050] (4) The black ceramic bl...
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