摘要:
Nonohmic ZnO ceramics including the following additives have the voltage nonlinear exponent .alpha. of 30 or more, the dielectric constant .epsilon. of about 1000 or less, the loss factor (tan .delta.) of less than 10%, and small variations caused in the breakdown voltage V.sub.i by load and large current pulses. The additives listed by molecular formulae are given in % by mol. The glass components are given for Nos. 1 through 4 in % by weight, symbols of elements being representative of borosilicate lead and/or zinc glass.______________________________________ No. Bi.sub.2 O.sub.3 CoO MnO Sb.sub.2 O.sub.3 Glass Component ______________________________________ 1. 0.1-10 0.05-10 0.25-4 0.05-6 0.1-10 (Pb-Zn) 2. 0.1-6 0.05-10 0.25-10 0.1-10 0.1-10 (Zn) 3. 0.1-6 0.05-10 0.23-4 0.05-6 0.1-3 (Pb) 4. 0.1-6 0.05-10 0.2-10 0.1-6 0.1-10 (Zn and others) ______________________________________ As a fifth embodiment, the oxides corresponding or equivalent to a lead-borosilicate glass (PbO, B.sub.2 O.sub.3 and SiO.sub.2) may be included in certain amounts with varying amounts of zinc oxide as a major component along with Bi.sub.2 O.sub.3, CoO, MnO and Sb.sub.2 O.sub.3.
摘要:
A "varistor" or voltage-dependent nonlinear resistor employs a ceramic base body having a voltage-dependent nonlinearity. First and second lead-out electrode layers are formed on first and second external surfaces, respectively, of the ceramic base body. Within and enclosed by the ceramic base body, a plurality of internal electrodes extend in parallel with each other and connect to the external lead-out electrodes. Also, the invention provides a method of manufacturing the voltage-dependent nonlinear resistor comprising the steps of forming a plurality of raw sheets of material, each having the desired voltage-dependent nonlinearity characteristics, after sintering. Internal electrodes of conducting material are printed on each of these sheets. The sheets are then laminated, cut and formed with external electrodes connecting the internal electrode to each other.
摘要:
Provided is a solid electrolytic capacitor element which is reduced in ESR deterioration due to thermal shock and suppressed in variation in ESR changes, while having good initial characteristics of ESR. This solid electrolytic capacitor element is provided, on the surface of an anode body, with at least a dielectric layer, a solid electrolyte layer, a carbon layer that contains a first resin component and a conductive layer that contains a second resin component. Both of the first resin component and the second resin component have a hydroxyl group, and the difference Δγh (=γh2−γh1) between the hydrogen-bonding component value γh1 [mN/m] of the carbon layer surface and the hydrogen-bonding component value γh2 [mN/m] of the conductive layer surface is within the range of −3≦Δγh≦3 [mN/m].
摘要:
A metal powder composition for metallization is for use in forming a metallized film from a paste comprising Cu and Ti powder and consists essentially of about 95 to 99.5% Cu and 0.5 to less than 5% Ti by weight. The above-mentioned paste is then applied onto a substrate and then fired to provide a metallized substrate.
摘要:
A ceramic dielectric material according to the present invention has a composition consisting essentially of La.sub.2 Ti.sub.2 O.sub.7, Sr.sub.2 Nb.sub.2 O.sub.7, and 1/2Mg.sub.2x --Ti.sub.2.sub.-2x O.sub.4.sub.-2x, where x lies in a range of 0 to 1.0. This material has a relatively large dielectric constant, a very stable temperature coefficient of the dielectric constant over a wide temperature range, a widely controllable value of the temperature coefficient of the dielectric constant, and a small dielectric loss. The temperature coefficient of the dielectric constant can be determined optionally in a wide range of value by simply changing the ratios among the three constituents of the composition.
摘要翻译:根据本发明的陶瓷电介质材料具有基本上由La 2 Ti 2 O 7,Sr 2 Nb 2 O 7和1 / 2Mg 2 x -Ti 2 -2 x O 4 -2 x组成的组成,其中x在0至1.0的范围内。 该材料具有相对较大的介电常数,在宽的温度范围内介电常数的非常稳定的温度系数,介电常数的温度系数的广泛可控的值和小的介电损耗。 介电常数的温度系数可以通过简单地改变组合物的三种成分之间的比率来任意地在宽范围的值范围内确定。
摘要:
A ceramic capacitor is prepared by corting an electrode paste on the opposite surfaces of a green ceramic body. The electrode paste contains an inorganic binder having the same composition as the green ceramic body. Then the green ceramic body is sintered and at the same time the electrode paste is baked to form electrodes for attaching lead wires.
摘要:
A dielectric material is provided consisting essentially of a composition based on the general formula:(BaTiO.sub.3).sub.x.(BaZrO.sub.3).sub.y.(CaTiO.sub.3).sub.z,Wherein x=y=z = 1.0 and in which x, y and z have the following ranges: 0.4 .ltoreq. x .ltoreq. 0.89, 0.1 .ltoreq. y .ltoreq. 0.3 and 0.01 .ltoreq. z .ltoreq. 0.3, respectively, said composition also containing between 0.001 wt% and 0.5 wt% SiO.sub.2 and between 0.01 mol% and 3 mol% TiO.sub.2.
摘要:
Provided is a solid electrolytic capacitor element which is reduced in ESR deterioration due to thermal shock and suppressed in variation in ESR changes, while having good initial characteristics of ESR. This solid electrolytic capacitor element is provided, on the surface of an anode body, with at least a dielectric layer, a solid electrolyte layer, a carbon layer that contains a first resin component and a conductive layer that contains a second resin component. Both of the first resin component and the second resin component have a hydroxyl group, and the difference Δγh (=γh2−γh1) between the hydrogen-bonding component value γh1 [mN/m] of the carbon layer surface and the hydrogen-bonding component value γh2 [mN/m] of the conductive layer surface is within the range of −3≦Δγh≦3 [mN/m].
摘要:
On a first piezoelectric sheet of a piezoelectric vibrator, a second piezoelectric sheet is stacked with interposition, between the sheets, of first-set electrodes, formed on an upper surface of the first piezoelectric sheet. Second-set electrodes are formed on an upper surface of the second piezoelectric sheet with each placed halfway between two adjacent ones of the first-set electrodes. The second piezoelectric sheet is poled in directions from each second-set electrode to the two adjacent ones of the first-set electrodes. Preferably, third-set electrodes are formed on a lower surface of the first piezoelectric sheet with each arranged halfway between two adjacent ones of the first-set electrodes. In this event, the first piezoelectric sheet is poled in directions from each third-set electrode to two adjacent ones of the first-set electrodes. Each first-set electrode has a first end along a side surface of the first piezoelectric sheet with each second-set and each third-set electrode possessed of a second and a third end along opposite side surfaces of the first and the second piezoelectric sheets. First and second common outside electrodes are formed on such side surfaces in contact with the first end of each first-set electrode either directly or through a first common electrode and in contact with the second and the third ends of the second-set and the third-set electrodes either directly or through second and third common electrodes.
摘要:
On a first piezoelectric sheet of a piezoelectric vibrator, a second piezoelectric sheet is stacked with interposition, between the sheets, of first-set electrodes (24(1), 24(2)) formed on an upper surface of the first piezoelectric sheet. Second-set electrodes are formed on an upper surface of the second piezoelectric sheet with each placed halfway between two adjacent ones of the first-set electrodes. The second piezoelectric sheet is poled in directions from each second-set electrode to the two adjacent ones of the first-set electrodes. Preferably, third-set electrodes are formed on a lower surface of the first piezoelectric sheet with each arranged halfway between two adjacent ones of the first-set electrodes. In this event, the first piezoelectric sheet is poled in directions from each third-set electrode to two adjacent ones of the first-set electrodes. Each first-set electrode has a first end along a side surface of the first piezoelectric sheet with each second-set and each third-set electrode possessed of a second and a third end along opposite side surfaces of the first and the second piezoelectric sheets. First and second common outside electrodes are formed on such side surfaces in contact with the first end of each first-set electrode either directly or through a first common electrode and in contact with the second and the third ends of the second-set and the third-set electrodes either directly or through second and third common electrodes.