Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dielectric material for multilayer ceramic capacitor and preparation method thereof
The invention relates to a dielectric material, in particular to a dielectric material for a multilayer ceramic capacitor and a preparation method of the dielectric material. The raw material of the dielectric material comprises 100 mol of BaTiO3; the raw materials further comprise CaZrO3; the molar ratio of the BaTiO3 to the CaZrO3 is 100: (1.0 to 2.0). The dielectric material provided by the invention has high bias stability, meets the X7R standard, and is an X7R type dielectric material with high bias stability; the multilayer ceramic capacitor made of the dielectric material is suitable for being sintered in a reducing atmosphere, the sintering temperature ranges from 1180 DEG C to 1280 DEG C, the dielectric constant of the multilayer ceramic capacitor is 2000 or above, the temperature characteristic meets the X7R characteristic of the American EIA standard, meanwhile, the capacitance change rate of a high-voltage load is smaller than 30%, and the dielectric constant of the multilayer ceramic capacitor is larger than or equal to 200. And the excellent direct-current bias resistance characteristic is displayed.
本发明涉及一种介质材料，尤其涉及一种多层陶瓷电容器用介质材料及其制备方法。所述介质材料的原料包括100mol的BaTiO3；所述原料还包括CaZrO3；所述BaTiO3与所述CaZrO3的摩尔比为100：(1.0‑2.0)。本发明提供的介质材料具有高偏压稳定性，且符合X7R标准，是一种具有高偏压稳定性的X7R型介质材料；利用该介质材料制得的多层陶瓷电容器，适合在还原气氛中烧结，烧结温度在1180‑1280℃之间，并且，该多层陶瓷电容器具有2000以上的介电常数，温度特性符合美国EIA标准的X7R特性，同时，其高压负荷的电容变化率小于30％，显示具有非常优异的抗直流偏压特性。
Dielectric material for multilayer ceramic capacitor and preparation method thereof
The invention relates to a dielectric material, in particular to a dielectric material for a multilayer ceramic capacitor and a preparation method of the dielectric material. The raw material of the dielectric material comprises 100 mol of BaTiO3; the raw materials further comprise CaZrO3; the molar ratio of the BaTiO3 to the CaZrO3 is 100: (1.0 to 2.0). The dielectric material provided by the invention has high bias stability, meets the X7R standard, and is an X7R type dielectric material with high bias stability; the multilayer ceramic capacitor made of the dielectric material is suitable for being sintered in a reducing atmosphere, the sintering temperature ranges from 1180 DEG C to 1280 DEG C, the dielectric constant of the multilayer ceramic capacitor is 2000 or above, the temperature characteristic meets the X7R characteristic of the American EIA standard, meanwhile, the capacitance change rate of a high-voltage load is smaller than 30%, and the dielectric constant of the multilayer ceramic capacitor is larger than or equal to 200. And the excellent direct-current bias resistance characteristic is displayed.
本发明涉及一种介质材料，尤其涉及一种多层陶瓷电容器用介质材料及其制备方法。所述介质材料的原料包括100mol的BaTiO3；所述原料还包括CaZrO3；所述BaTiO3与所述CaZrO3的摩尔比为100：(1.0‑2.0)。本发明提供的介质材料具有高偏压稳定性，且符合X7R标准，是一种具有高偏压稳定性的X7R型介质材料；利用该介质材料制得的多层陶瓷电容器，适合在还原气氛中烧结，烧结温度在1180‑1280℃之间，并且，该多层陶瓷电容器具有2000以上的介电常数，温度特性符合美国EIA标准的X7R特性，同时，其高压负荷的电容变化率小于30％，显示具有非常优异的抗直流偏压特性。
Dielectric material for multilayer ceramic capacitor and preparation method thereof
一种多层陶瓷电容器用介质材料及其制备方法
ZHU HENG (Autor:in) / ZHANG WEI (Autor:in) / WANG XINYING (Autor:in) / AI LIAODONG (Autor:in) / WANG JUN (Autor:in) / WANG HAICHAO (Autor:in)
22.04.2022
Patent
Elektronische Ressource
Chinesisch
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