The invention relates to a
casting formingmethod for producing
dielectric ceramic.
Barium titanate powders, dispersants,
agarose and deionized water are mixed through ball milling according to a certain proportion; experiment on the rheological property is carried out on the obtained suspension liquid after ball milling for certain time, and
casting is carried out under the
room temperature; and green bodies obtained by
casting together with molds are put in a
drying oven of 90 DEG C. The method has the advantages that firstly the defects of the traditional forming method are overcome, the
gel casting technology is adopted for forming, and novel environment-friendly and non-
pollution nontoxic gel
system agarose is used, great improvement is made in regulating the gel technology, the
gel forming time is controlled through changing the using amount of the components of a gel
system, the gel temperature, and the like, so that forming in short time can be realized, and the settlement of
suspended solids is reduced to obtain evenly formed
ceramic green bodies with little defect. Compared with other methods, the invention has the advantages of moderate
reaction conditions, simple technological operation, non-
toxicity, no
pollution, high forming quality of green bodies, small
internal stress and small cracks, so that the
dielectric ceramic has a broader application prospect in the
high voltage field.