| 摘要 |
Disclosed is a method of uniformly dispersing and coating an additive on ceramic powder. The method includes adding ethenylbenzene into at least one aqueous solution or at least one sol of metal salt selected from a group consisting of nitrate, acetate, oxide, and carbonate of Mg, Y, Dy, Mn, Ba, and Ca, and adding (Ba<SUB>(1-x)</SUB>Ca<SUB>x</SUB>)TiO<SUB>3 </SUB>ceramic powder (0<=x<=0.05) into a resulting solution or sol to preliminarily mix a resulting mixture, deagglomerating and mixing the preliminarily mixed mixture using a Beads Mill, spray drying the deagglomerated and mixed mixture, and calcining the dried mixture at 400 to 700° C. According to the method, an additive is uniformly coated and dispersed on dielectric ceramic powder, thus the sintering of fine particles constituting the ceramic powder is desirably controlled, and dispersibility of the additive on the ceramic powder is improved.
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