Dielectric ceramic, process for producing the same, and laminated ceramic capacitor
A kind of dielectric ceramic and manufacturing method, which is applied in the field of laminated ceramic capacitors to achieve the effects of stabilization, temperature characteristics, and high dielectric constant.
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[0077] Example
[0078] The laminated ceramic capacitor is produced as shown below. The type, average particle size, addition amount, and firing temperature of the raw material powder used are shown in Table 1. Here, a material coated with Mg, Y, and Mn on barium titanate (BT powder) and barium·calcium titanate powder (BCT powder), and a material without coating of Mg, Y, and Mn mixed with the powder are used. As BCT powder, Ba is used 0.95 Ca 0.05 TiO 3 .
[0079] The average particle size of barium titanate (BT powder) and barium-calcium titanate powder (BCT powder) was set to 0.25 μm together. When mixing the BT powder and the BCT powder, the BT powder and the BCT powder are mixed in the same molar amount, and the coating amounts of Mg, Mn, and Y are prepared by setting the BT powder and the BCT powder to 100 parts by mass. In addition, BT powder and BCT powder with an A / B side ratio of 1.003 were used. In addition, the main particle size of the used BT powder and BCT powder is...
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