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 discloses a dielectric material for a multilayer ceramic capacitor and a preparation method of the dielectric material. The dielectric material is prepared from the following raw materials in parts by weight: 70 to 80 parts of Li2CO3, 40 to 50 parts of Y2O3, 20 to 30 parts of ZrO2, 3 to 4 parts of Nb2O5, 8 to 10 parts of RuO2, 5 to 6 parts of TiO2 and 8 to 10 parts of LiF. The preparation method of the dielectric material comprises the following steps: S1, preparation of a first pre-sintered body: mixing Li2CO3, Y2O3 and ZrO2 with agate balls and absolute ethyl alcohol according to the stoichiometric ratio of Li2Y0. 4Zr0. 2O2, carrying out ball milling, and pre-sintering to obtain the first pre-sintered body; s2, preparation of a second pre-sintered body: mixing Nb2O5, RuO2 and TiO2 with agate balls and absolute ethyl alcohol according to the stoichiometric ratio of Nb0. 4RuTiO5, carrying out ball milling, and pre-sintering to obtain the second pre-sintered body; and S3, preparation of the dielectric material: mixing and ball-milling the first pre-sintered body in the S1, the second pre-sintered body in the S2, LiF, agate balls and absolute ethyl alcohol, drying, granulating, tabletting, and sintering to obtain the dielectric material for the multilayer ceramic capacitor. The dielectric material prepared by the invention has the advantages of low sintering temperature, good temperature stability, low dielectric loss and the like.
本发明公开了多层陶瓷电容器用介质材料及其制备方法，该介质材料包含如下重量份计的原料：Li2CO370‑80份、Y2O340‑50份、ZrO220‑30份、Nb2O53‑4份、RuO28‑10份、TiO25‑6份、LiF 8‑10份；该介质材料制备的方法步骤如下：S1：第一预烧体的制备：按Li2Y0.4Zr0.2O2化学计量比将Li2CO3、Y2O3和ZrO2与玛瑙球和无水乙醇混合球磨，经预烧得第一预烧体；S2：第二预烧体的制备：按Nb0.4RuTiO5化学计量比将Nb2O5、RuO2和TiO2与玛瑙球和无水乙醇混合球磨，经预烧得第二预烧体；S3：介质材料的制备：将S1的第一预烧体、S2的第二预烧体和LiF、玛瑙球和无水乙醇混合球磨，经干燥、造粒和压片后再进行烧结，即得多层陶瓷电容器用介质材料。本发明制备的介质材料具有烧结温度低、温度稳定性好和介电损耗低等优点。
Dielectric material for multilayer ceramic capacitor and preparation method thereof
The invention discloses a dielectric material for a multilayer ceramic capacitor and a preparation method of the dielectric material. The dielectric material is prepared from the following raw materials in parts by weight: 70 to 80 parts of Li2CO3, 40 to 50 parts of Y2O3, 20 to 30 parts of ZrO2, 3 to 4 parts of Nb2O5, 8 to 10 parts of RuO2, 5 to 6 parts of TiO2 and 8 to 10 parts of LiF. The preparation method of the dielectric material comprises the following steps: S1, preparation of a first pre-sintered body: mixing Li2CO3, Y2O3 and ZrO2 with agate balls and absolute ethyl alcohol according to the stoichiometric ratio of Li2Y0. 4Zr0. 2O2, carrying out ball milling, and pre-sintering to obtain the first pre-sintered body; s2, preparation of a second pre-sintered body: mixing Nb2O5, RuO2 and TiO2 with agate balls and absolute ethyl alcohol according to the stoichiometric ratio of Nb0. 4RuTiO5, carrying out ball milling, and pre-sintering to obtain the second pre-sintered body; and S3, preparation of the dielectric material: mixing and ball-milling the first pre-sintered body in the S1, the second pre-sintered body in the S2, LiF, agate balls and absolute ethyl alcohol, drying, granulating, tabletting, and sintering to obtain the dielectric material for the multilayer ceramic capacitor. The dielectric material prepared by the invention has the advantages of low sintering temperature, good temperature stability, low dielectric loss and the like.
本发明公开了多层陶瓷电容器用介质材料及其制备方法，该介质材料包含如下重量份计的原料：Li2CO370‑80份、Y2O340‑50份、ZrO220‑30份、Nb2O53‑4份、RuO28‑10份、TiO25‑6份、LiF 8‑10份；该介质材料制备的方法步骤如下：S1：第一预烧体的制备：按Li2Y0.4Zr0.2O2化学计量比将Li2CO3、Y2O3和ZrO2与玛瑙球和无水乙醇混合球磨，经预烧得第一预烧体；S2：第二预烧体的制备：按Nb0.4RuTiO5化学计量比将Nb2O5、RuO2和TiO2与玛瑙球和无水乙醇混合球磨，经预烧得第二预烧体；S3：介质材料的制备：将S1的第一预烧体、S2的第二预烧体和LiF、玛瑙球和无水乙醇混合球磨，经干燥、造粒和压片后再进行烧结，即得多层陶瓷电容器用介质材料。本发明制备的介质材料具有烧结温度低、温度稳定性好和介电损耗低等优点。
Dielectric material for multilayer ceramic capacitor and preparation method thereof
多层陶瓷电容器用介质材料及其制备方法
ZHANG KEKE (Autor:in) / JIANG XUEXIN (Autor:in)
26.12.2023
Patent
Elektronische Ressource
Chinesisch
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