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    • 1. 发明申请
    • DIELECTRIC CERAMIC COMPOSITION
    • 电介质陶瓷组合物
    • WO1991011408A1
    • 1991-08-08
    • PCT/JP1991000092
    • 1991-01-29
    • NIPPON SODA CO., LTD.YOSHIMOTO, TetsuoABE, Shinji
    • NIPPON SODA CO., LTD.
    • C04B35/49
    • C04B35/493H01G4/1263
    • A dielectric ceramic composition which is suitable as the material of ceramic capacitors and has a high permittivity, a low rate of change in permittivity with temperature, a high insulation resistance, high mechanical strengths, a low sintering temperature dependence of electrical properties, and a small sintered particle diameter. Since it can be sintered in a temperature range as low as 1000 DEG C or below, an inexpensive base metal can be used as an internal electrode. It has the following composition: [Pb(Mg1/2W1/2)O3]X-[Pb(M1/3Nb2/3)O3]Y-[PbTiO3]Z-[PbZrO3]U wherein M represents Ni or Mg and X, Y, Z and U each represents a molar fraction, wherein X+Y+Z+U=1, and satisfies the following relations: 0.05
    • 一种介电陶瓷组合物,其适合作为陶瓷电容器的材料,具有高介电常数,介电常数随温度变化率低,绝缘电阻高,机械强度高,电特性的烧结温度依赖性低 烧结颗粒直径。 由于可以在低于1000℃的温度范围内进行烧结,因此可以使用廉价的贱金属作为内部电极。 具有以下组成:[Pb(Mg1 / 2W1 / 2)O3] X- [Pb(M1 / 3Nb2 / 3)O3] Y- [PbTiO3] Z- [PbZrO3] U其中M表示Ni或Mg,X, Y,Z和U各自表示摩尔分数,其中X + Y + Z + U = 1,并且满足以下关系:0.05≤X≤0.3,0.05≤Y≤0.85,0.05< / = Z