专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20030158032A1 Dielectric ceramic composition and electronic device 有权
标题翻译：介电陶瓷组合物和电子器件
公开(公告)号：US20030158032A1
公开(公告)日：2003-08-21
申请号：US10368650
申请日：2003-02-20
申请人： TDK CORPORATION
发明人： Yoshinori Fujikawa , Yoshihiro Terada , Shigeki Sato
IPC分类号： C04B035/46 , H01G004/06
CPC分类号： H01G4/1227 , C04B35/4682 , C04B35/803
摘要： A dielectric ceramic composition comprising a main component of BaTiO3, a first subcomponent including at least one compound selected from MgO, CaO, BaO, SrO and Cr2O3, a second subcomponent of (Ba, Ca)xSiO2nullx (where, xnull0.8 to 1.2), a third subcomponent including at least one compound selected from V2O5, MoO3, and WO3, and a fourth subcomponent including an oxide of R1 (where R1 is at least one element selected from Sc, Er, Tm, Yb, and Lu), a fifth subcomponent including an oxide of R2 (where R2 is at-least one element-selected from Y, Dy, Ho, Tb, Gb and Eu), wherein the ratios of the subcomponents to 100 moles of the main component of BaTiO3 are first subcomponent of 0.1 to 3 moles, second subcomponent of 2 to 10 moles, third subcomponent of 0.01 to 0.5 mole, fourth subcomponent of 0.5 to 7 moles, and fifth subcomponent of 2 to 9 moles (where the number of moles of the fourth and fifth subcomponents are respectively the ratio of R1 and R2 alone).
摘要翻译：一种包含BaTiO 3的主要组分的介电陶瓷组合物，包含至少一种选自MgO，CaO，BaO，SrO和Cr 2 O 3的化合物的第一副成分，（Ba，Ca）xSiO 2 + x的第二副成分（其中x = 0.8至 1.2），包含至少一种选自V 2 O 5，MoO 3和WO 3的化合物的第三副成分和包含R 1的氧化物（其中R 1为选自Sc，Er，Tm，Yb和Lu中的至少一种元素）的第四副成分，，其中包含R2的氧化物（其中R2为至少一个选自Y，Dy，Ho，Tb，Gb和Eu的元素）的第五副成分，其中副成分与BaTiO 3的主成分的100摩尔比为第一副成分为0.1〜3摩尔，第二副成分为2〜10摩尔，第3副成分为0.01〜0.5摩尔，第4副成分为0.5〜7摩尔，第5副成分为2〜9摩尔（第4副成分第五个子部件分别是R1和R2的比率）。

2. 发明申请

US20020013213A1 Dielectric ceramics and electronic component 失效
标题翻译：介电陶瓷和电子元件
公开(公告)号：US20020013213A1
公开(公告)日：2002-01-31
申请号：US09835492
申请日：2001-04-17
申请人： TDK CORPORATION
发明人： Shigeki Sato , Yoshihiro Terada , Yoshinori Fujikawa
IPC分类号： C04B035/468
CPC分类号： H01G4/1227
摘要： Provided are dielectric ceramics and an electronic component capable of enhancing the longevity of insulation resistance under load at high temperature, namely, the so-called lifetime of IR degradation. A dielectric layer comprises dielectric ceramics containing BaTiO3 that is a main component; a first auxiliary component containing at least one element in a group consisting of Mg, Ca, Ba, Sr and Cr; a second auxiliary component containing SiO2; a third auxiliary component containing at least one element in a group consisting of V, Mo and W; and a fourth auxiliary component containing at least one element in a group consisting of Er, Tm, Yb, Y, Dy and Ho. Preferably, the rate of existence of crystal particles having voids in the dielectric ceramics is 10% or lower in terms of the count rate, and an average crystal particle diameter is more than 0.1 nullm and not more than 0.7 nullm. Thus, the lifetime of IR degradation is improved. Preferably, BaTiO3 powders synthesized by oxalate process or solid phase method and having a Ba/Ti ratio of more than 1 and less than 1.007 are used as a raw material.
摘要翻译：提供了电介质陶瓷和能够提高耐高温下的负载下的绝缘电阻的寿命的电子部件，即所谓的IR降解的寿命。电介质层包含作为主要成分的含有BaTiO 3的电介质陶瓷; 包含由Mg，Ca，Ba，Sr和Cr组成的组中的至少一种元素的第一辅助组分; 含有SiO 2的第二辅助组分; 包含由V，Mo和W组成的组中的至少一种元素的第三辅助组分; 以及包含由Er，Tm，Yb，Y，Dy和Ho组成的组中的至少一种元素的第四辅助成分。优选地，在电介质陶瓷中具有空隙的晶体颗粒的存在速率以计数率计为10％以下，平均结晶粒径为0.1μm以上且0.7μm以下。因此，IR降解的寿命得到改善。优选使用通过草酸盐法或固相法合成并具有大于1且小于1.007的Ba / Ti比的BaTiO 3粉末作为原料。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式