摘要:
The invention relates to a method for manufacturing dielectric ceramic powder and a multilayer ceramic capacitor using the ceramic powder. According to the invention, BaCO3 powder is dispersed into a solution of solvent and dispersant to prepare BaCO3 slurry and then the resultant BaCO3 slurry is wet-milled. Also, TiO2 powder slurry is mixed into the wet-milled BaCO3 slurry to form mixed slurry and then the mixed slurry is dried into mixed powder. Finally, the dried mixed powder is calcined to produce BaTiO3 powder.
摘要:
A glass frit for dielectrics, a dielectric ceramic composition, a multilayer ceramic capacitor, and a method for manufacturing the same are disclosed. The glass frit has a composition represented by the formula aSiO2-bB2O3-cLi2O-dK2O-eCaO-fAl2O3-gTiO2-hZrO2, wherein the ratio of components satisfies the conditions of 20≦a≦35, 20≦b≦35, 20≦c≦30, 3≦d≦5, 2≦e≦12, 2≦f≦10, 1≦g≦12 and 1≦h≦7 in terms of mol % where a+b+c+d+e+f+g+h=100. The dielectric ceramic composition comprises 100 parts by weight of (Ca1-xRx)(Zr1-yTiy)O3, 0.5˜2.5 parts by weight of the glass frit, and 1.0˜5.0 parts by weight of a Mn compound. Additionally, the multilayer ceramic capacitor, and the method for manufacturing the same also use the glass frit having the above composition. The ratio of tetracoordinate boron to tricoordinate boron is increased in a lithium borosilicate glass, thereby enhancing structural property, and the components of Al2O3, TiO2 and ZrO2, enhance acid resistance.
摘要翻译:公开了一种电介质玻璃料,介电陶瓷组合物,多层陶瓷电容器及其制造方法。 所述玻璃料具有式aSiO 2-b B 2 O 3 -cLi 2 O 2 O- dK 2 O-eCaO-fAl 2 O 3 -gTiO 2 -hZrO 2 SUB >,其中组分的比例满足20≤a≤35,20≤b≤35,20,20≤c≤30,3≤d≤5,2=e≤12的条件 其中a + b + c + d + e + f + g + h = 100,以摩尔%表示,2 <= f <= 10,1 <= g <= 12和1 <= h <= 7。 电介质陶瓷组合物包含100重量份的(Ca 1-x N R x x)(Zr 1-y)Ti y / 3> O 3,0.5〜2.5重量份的玻璃料和1.0〜5.0重量份的Mn化合物。 此外,多层陶瓷电容器及其制造方法也使用具有上述组成的玻璃料。 在硼硅酸锂玻璃中四配位硼与三配位硼的比例增加,从而提高结构性能,并且将Al 2 N 3 O 3,TiO 2, / SUB和ZrO 2,提高耐酸性。
摘要:
The invention relates to a method for manufacturing dielectric ceramic powder and a multilayer ceramic capacitor using the ceramic powder. According to the invention, BaCO3 powder is dispersed into a solution of solvent and dispersant to prepare BaCO3 slurry and then the resultant BaCO3 slurry is wet-milled. Also, TiO2 powder slurry is mixed into the wet-milled BaCO3 slurry to form mixed slurry and then the mixed slurry is dried into mixed powder. Finally, the dried mixed powder is calcined to produce BaTiO3 powder.