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2. 发明授权

US06356037B1 Dielectric ceramic and a capacitor using the same 有权
标题翻译：介电陶瓷和使用其的电容器
公开(公告)号：US06356037B1
公开(公告)日：2002-03-12
申请号：US09287710
申请日：1999-04-07
申请人： Harunobu Sano , Kazuhiro Harada , Osamu Yamaoka , Shinichi Kobayashi , Toshiya Esumi , Yoshitaka Kageyama
发明人： Harunobu Sano , Kazuhiro Harada , Osamu Yamaoka , Shinichi Kobayashi , Toshiya Esumi , Yoshitaka Kageyama
IPC分类号： H05B3700
CPC分类号： H01G4/1227
摘要： An inexpensive capacitor for pulse generation whose characteristics do not deteriorate even when the capacitor is used in a high temperature, high vacuum, reducing atmosphere, and which enables generation of high-voltage pulses over a wide temperature range. The dielectric body 1 of the capacitor is constructed of a non-linear dielectric ceramic which exhibits resistance to reduction. The non-linear dielectric ceramic comprises a polycrystalline substance containing barium titanate as a primary component, and when the polycrystalline substance is represented by (1−a−b)ABO3+aM+bR wherein ABO3 is a barium titanate component and represents a perovskite structure, M is an oxide of at least one element selected from the group consisting of Mn, Ni and Co, R is an oxide of at least one element selected from the group consisting of La, Ce, Nd, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er and Yb, and a and b represent mole fractions; A, B, a, and b satisfy the following relationships: 1.000≦A/B≦1.006 (mole ratio), 0.3≦b/a≦3, 0.0015≦a≦0.0050, and 0.0015≦b≦0.0050, and a total content of M and R represented by Ad satisfies 0.3
摘要翻译：即使在高温，高真空，还原气氛中使用电容器，也能够在宽的温度范围内产生高电压脉冲的情况下，其特性不劣化的脉冲发生用廉价的电容器。电容器的电介质体1由表现出抗还原性的非线性介电陶瓷构成。非线性电介质陶瓷包括含有钛酸钡作为主要成分的多晶物质，并且当多晶物质由（1-ab）ABO 3 + aM + bR表示时，其中ABO 3是钛酸钡成分并且表示钙钛矿结构，M 是选自Mn，Ni和Co中的至少一种元素的氧化物，R是选自La，Ce，Nd，Pr，Sm，Eu，Gd，Tb中的至少一种元素的氧化物，Dy，Ho，Er和Yb，a和b表示摩尔分数; A，B，a和b满足以下关系：1.000 <= A / B <= 1.006（摩尔比），0.3 <= b / a <= 3，0.0015 <= a <= 0.0050和0.0015 <= b <= 0.0050，由Ad表示的M和R的总含量满足0.3

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