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Method for preparing MgAlON transparent ceramic biscuit by direct coagulation casting
The invention relates to a method for preparing MgAlON transparent biscuit by direct coagulation casting. The method comprises the following steps: (1) preparing MgAlON ceramic slurry, namely adding an aqueous solution of a dispersant of which the pH is preadjusted to 8-11 into to-be-molded MgAlON powder, mixing and stirring, and leading the adding amount of the dispersant in the aqueous solution to 0.1-0.5wt% of the mass of the to-be-molded MgAlON powder to obtain the MgAlON ceramic slurry; (2) adding additive, namely adding coagulator into the MgAlON ceramic slurry obtained in the step (1) under an ice bath condition, and stirring to uniformly disperse the coagulator in the MgAlON ceramic slurry; (3) defoaming; (4) molding by injection and solidifying; and (5) drying the biscuit. The method is simple, the condition is easily controlled, the prepared MgAlON transparent ceramic biscuit has complete shape and uniform microscopic structure, and the sintered MgAlON transparent ceramic sample has good optical transmission.
Method for preparing MgAlON transparent ceramic biscuit by direct coagulation casting
The invention relates to a method for preparing MgAlON transparent biscuit by direct coagulation casting. The method comprises the following steps: (1) preparing MgAlON ceramic slurry, namely adding an aqueous solution of a dispersant of which the pH is preadjusted to 8-11 into to-be-molded MgAlON powder, mixing and stirring, and leading the adding amount of the dispersant in the aqueous solution to 0.1-0.5wt% of the mass of the to-be-molded MgAlON powder to obtain the MgAlON ceramic slurry; (2) adding additive, namely adding coagulator into the MgAlON ceramic slurry obtained in the step (1) under an ice bath condition, and stirring to uniformly disperse the coagulator in the MgAlON ceramic slurry; (3) defoaming; (4) molding by injection and solidifying; and (5) drying the biscuit. The method is simple, the condition is easily controlled, the prepared MgAlON transparent ceramic biscuit has complete shape and uniform microscopic structure, and the sintered MgAlON transparent ceramic sample has good optical transmission.
Method for preparing MgAlON transparent ceramic biscuit by direct coagulation casting
WANG HAO (author) / REN LU (author) / ZONG XIAO (author) / WANG WEIMIN (author) / FU ZHENGYI (author)
2015-07-01
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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