客服热线:18202992950

Dielectric ceramic and laminated ceramic capacitor 发明授权

2023-01-14 3980 518K 0

专利信息

申请日期 2025-08-19 申请号 JP2008044231
公开(公告)号 JP5483825B2 公开(公告)日 2014-05-07
公开国别 JP 申请人省市代码 全国
申请人 Kyocera Corporation6633
简介 To provide a dielectric ceramic, which has high permittivity, has specific permittivity which varies depending upon temperature so as to satisfy X5R characteristics in EIA specifications, and can realize high insulation resistance even in the case of low applied voltage, and a laminated ceramic capacitor which comprises the dielectric ceramic as a dielectric layer and is excellent in service life properties in a high-temperature load test. A dielectric ceramic composed mainly of barium titanate having a different Ca concentration. The dielectric ceramic contains, based on 100 moles of barium constituting the dielectric ceramic, 0.05 to 0.3 mole, in terms of V2O5, of vanadium, 0 to 1 mole, in terms of MgO, of magnesium, 0 to 0.5 mole, in terms of MnO, of manganese, and 0.4 to 1.5 moles, in terms of RE2O3, of a rare earth element (RE) selected from yttrium, dysprosium, holmium, and erbium. In an X-ray diffraction chart of the dielectric ceramic, the diffraction intensity of (004) plane, which shows tetragonal barium titanate, is larger than the diffraction intensity of (400) plane which shows cubic barium titanate.


您还没有登录,请登录后查看下载地址


反对 0举报 0 收藏 0 打赏 0评论 0
下载排行
网站首页  |  关于我们  |  联系方式  |  使用协议  |  版权隐私  |  网站地图  |  排名推广  |  广告服务  |  积分换礼  |  网站留言  |  RSS订阅  |  违规举报  |  京ICP备2021025988号-4