Method of manufacturing voltage-dependent resistor
    1.
    发明授权
    Method of manufacturing voltage-dependent resistor 失效
    制造电压相关电阻的方法

    公开(公告)号:US4692289A

    公开(公告)日:1987-09-08

    申请号:US753757

    申请日:1985-07-11

    CPC分类号: H01C7/115

    摘要: A voltage-dependent resistor having a low operational field strength with a ceramic sintered body on the basis of a polycrystalline alkaline earth metal titanate doped with a small quantity of a metal oxide so as to produce an N-type conductivity, in which the sintered body comprises at its grain boundaries insulating layers formed by in-diffusion of at least a metal oxide or at least a metal oxide compound and comprises of an alkaline earth metal titanate having Perowskite structure of the general formula:(A.sub.1-x Ln.sub.x)TiO.sub.3 .multidot.yTiO.sub.2 or A(Ti.sub.1-x Me.sub.x)O.sub.3 .multidot.yTiO.sub.2wherein: A=alkaline earth metal; Ln=rare earth metal; Me=metal having a valency of 5 or more; 0.0005

    摘要翻译: 基于掺杂有少量金属氧化物的多晶碱土金属钛酸盐以产生N型导电性的陶瓷烧结体,具有低操作场强的电压相关电阻器,其中烧结体 在其晶界处包括由至少金属氧化物或至少金属氧化物化合物的扩散形成的绝缘层,并且包含具有以下通式的具有贯穿孔雀石结构的碱土金属钛酸盐:(A1-xLnx)TiO3TiTiO2或A( Ti1-xMex)O3xyTiO2其中:A =碱土金属; Ln =稀土金属; Me = 5价以上的金属; 0.0005

    Non-ohmic device using TiO.sub.2
    6.
    发明授权
    Non-ohmic device using TiO.sub.2 失效
    使用二氧化钛的非欧姆器件

    公开(公告)号:US4430255A

    公开(公告)日:1984-02-07

    申请号:US413751

    申请日:1982-09-01

    申请人: Man F. Yan

    发明人: Man F. Yan

    IPC分类号: H01C7/115 H01G4/12 H01B1/02

    CPC分类号: H01C7/115 H01G4/1272

    摘要: An electrical device having a nonlinear current-voltage characteristic is described which uses TiO.sub.2, a Group IIA element such as barium, calcium and strontium in an amount greater than 0.0 and generally less than approximately 1.0 mole percent, a Group VB element such as niobium in an amount generally less than 5.0 mole percent.

    摘要翻译: 描述了具有非线性电流 - 电压特性的电子器件,其使用TiO 2,IIA族元素如钡,钙和锶,其量大于0.0且通常小于约1.0摩尔%,VB族元素如铌在 通常小于5.0摩尔%。

    Non-linear resistance element, method for preparing same and noise
suppressor therewith
    7.
    发明授权
    Non-linear resistance element, method for preparing same and noise suppressor therewith 失效
    非线性电阻元件,其制备方法和噪声抑制器

    公开(公告)号:US4306214A

    公开(公告)日:1981-12-15

    申请号:US64807

    申请日:1979-08-08

    CPC分类号: H01C7/115

    摘要: A novel non-linear resistance element or a varistor element is proposed which is a sintered body composed of a ternary oxide mixture comprising titanium dioxide as the base component, bismuth oxide and a third oxide component selected from the group consisting of oxides of tantalum, niobium and antimony admixed in limited proportions. The sintered body is prepared by subjecting the powder mixture obtained by admixing a solution containing tantalum, niobium or antimony with titanium dioxide and bismuth oxide to sintering following drying and calcination. The varistor element of the invention is stable in its performance and has a sufficiently high non-linearity index so that excellent noise suppressors are prepared with the varistor element to be useful in absorbing the noise voltages generated in various rotatory machines such as miniature motors.Further improvement in the above varistor element is proposed by adding a small amount of silicon dioxide to the ternary oxide mixtures.

    摘要翻译: 提出了一种新型的非线性电阻元件或变阻器元件,其是由以二氧化钛为基体的三元氧化物混合物构成的烧结体,氧化铋和选自钽,铌的氧化物的第三氧化物成分 和锑以有限的比例混合。 通过将通过将含有钽,铌或锑的溶液与二氧化钛和氧化铋混合得到的粉末混合物进行干燥和煅烧来烧结来制备烧结体。 本发明的变阻器元件的性能稳定,具有足够高的非线性指数,因此可以利用变阻器元件制造出优异的噪声抑制器,以用于吸收微型电动机等各种旋转机械产生的噪声电压。 通过向三元氧化物混合物中加入少量二氧化硅来提出上述变阻器元件的进一步改进。