High energy density lead magnesium niobate-based dielectric ceramic and
process for the preparation thereof
    11.
    发明授权
    High energy density lead magnesium niobate-based dielectric ceramic and process for the preparation thereof 失效
    高能密度铅铌酸镁基介电陶瓷及其制备方法

    公开(公告)号:US5337209A

    公开(公告)日:1994-08-09

    申请号:US943357

    申请日:1992-09-10

    摘要: A dielectric ceramic composition is disclosed comprising lead magnesium niobate and strontium titanate, barium titanate or a combination thereof. Dopants such as Ta, La, Y, Eu, Nd, Sm, Gd, W, Si, Zr and Sb may also be included in the composition. The lead magnesium niobate with strontium titanate and/or barium titanate composition has been found to possess extremely favorable properties such as high dielectric constant, low dielectric loss, high breakdown strength, low field-induced strain, high electrical resistivity and exceptionally high energy storage capacity. A process is also disclosed for the production of dielectric ceramic materials which includes the use of hot isostatic pressing in an oxygen-containing atmosphere. The disclosed dielectric compositions are useful in capacitors for many applications, including medical devices such as defibrillators and pacemakers.

    摘要翻译: 公开了一种介电陶瓷组合物,其包含铌酸铅镁和钛酸锶,钛酸钡或它们的组合。 掺杂剂如Ta,La,Y,Eu,Nd,Sm,Gd,W,Si,Zr和Sb也可以包括在组合物中。 已经发现具有钛酸锶和/或钛酸钡组合物的铅镁铌具有非常有利的性能,例如高介电常数,低介电损耗,高击穿强度,低场致应变,高电阻率和超高能量存储容量 。 还公开了用于生产介电陶瓷材料的方法,其包括在含氧气氛中使用热等静压。 所公开的电介质组合物可用于许多应用的电容器,包括诸如除颤器和起搏器的医疗装置。

    Method of producing an LTCC substrate with cavities having improved bondability
    12.
    发明授权
    Method of producing an LTCC substrate with cavities having improved bondability 有权
    制造具有改善的粘合性的空腔的LTCC基板的方法

    公开(公告)号:US07244331B1

    公开(公告)日:2007-07-17

    申请号:US10959121

    申请日:2004-10-07

    IPC分类号: B32B37/10 B32B38/00

    CPC分类号: B32B37/0023

    摘要: A method of producing an LTCC substrate having improved cavity bondability is disclosed that involves providing a stack of green ceramic tape sheets having a cavity, placing a template having an opening corresponding to the cavity over the stack, placing a stretchable sheet of material coated with graphite or zinc stearate over the template, isostatically laminating the stack to produce an LTCC substrate having a cavity, and removing the template and sheet of stretchable material from the stack.

    摘要翻译: 公开了一种制造具有改善的腔体粘合性的LTCC基板的方法,其包括提供具有空腔的一堆绿色陶瓷带片,将具有对应于空腔的开口的模板放置在堆叠上,放置涂覆有石墨的可拉伸片材 或硬脂酸锌在模板上均匀地层叠叠层以产生具有空腔的LTCC基材,并从堆叠中除去可拉伸材料的模板和片材。