Method of producing low temperature firing dielectric ceramic
composition containing B.sub.2 O.sub.3
    9.
    发明授权
    Method of producing low temperature firing dielectric ceramic composition containing B.sub.2 O.sub.3 失效
    含B2O3 + B的低温焙烧电介质陶瓷组合物的制造方法

    公开(公告)号:US5458981A

    公开(公告)日:1995-10-17

    申请号:US148861

    申请日:1993-11-08

    摘要: A method of producing a dielectric ceramic composition is disclosed which includes the steps of: preparing a main ceramic composition comprising BaO, TiO.sub.2 and RE.sub.2 O.sub.3 (where RE represents at least one rare earth metal) as major components; calcining a mixture of starting materials which give the main ceramic composition, at a temperature of 1050.degree. C. or higher, to provide a calcined mixture; finely pulverizing the calcined mixture to provide a calcined ceramic powder having an average grain size of not larger than 0.8 .mu.m; and adding, as at least a part of a secondary component, a B.sub.2 O.sub.3 powder or a glass powder containing B.sub.2 O.sub.3, to the main ceramic composition. Also disclosed are a dielectric resonator and dielectric filter using such a dielectric ceramic composition as produced according to the above method, and a method of producing such a dielectric resonator or filter.

    摘要翻译: 公开了一种制备电介质陶瓷组合物的方法,其包括以下步骤:制备包含BaO,TiO 2和RE 2 O 3(其中RE表示至少一种稀土金属)作为主要组分的主要陶瓷组合物; 在1050℃或更高的温度下煅烧得到主要陶瓷组合物的起始材料的混合物,以提供煅烧混合物; 将煅烧后的混合物粉碎,得到平均粒径不大于0.8μm的煅烧陶瓷粉末; 并将作为至少一部分次要成分的B 2 O 3粉末或含有B 2 O 3的玻璃粉末添加到主要陶瓷组合物中。 还公开了使用根据上述方法制造的这种介电陶瓷组合物的介质谐振器和介质滤波器以及制造这种介质谐振器或滤波器的方法。

    Dielectric resonator or filter for microwave application, and method of
producing the dielectric resonator or filter
    10.
    发明授权
    Dielectric resonator or filter for microwave application, and method of producing the dielectric resonator or filter 失效
    用于微波应用的介质谐振器或滤波器,以及制造介质谐振器或滤波器的方法

    公开(公告)号:US5332984A

    公开(公告)日:1994-07-26

    申请号:US145082

    申请日:1993-11-03

    IPC分类号: C04B35/465 C04B35/49 H01P7/08

    摘要: A dielectric ceramic composition is disclosed which includes: a main ceramic composition of barium oxide and titanium oxide, or barium oxide, titanium oxide and at least one of strontium oxide, calcium oxide, zirconia and zinc oxide, which composition is represented by (1-a-b)BaO.aSrO.bCaO.x[(1-c)TiO.sub.2.cZrO.sub.2 ].yZnO, where 3.1.ltoreq.x.ltoreq.5.4, 0.ltoreq.y.ltoreq.2.9, 0.ltoreq.a+b.ltoreq.0.4, 0.ltoreq.c.ltoreq.0.2; and a secondary component at least a part of which consists of a B.sub.2 O.sub.3 material or a glass material containing B.sub.2 O.sub.3 as one of glass components, the secondary component being added to the main ceramic composition, in an amount of 0.1-7.5 parts by weight of B.sub.2 O.sub.3 per 100 parts by weight of the main ceramic composition. Also disclosed are a method of preparing such a dielectric ceramic composition, a dielectric resonator for microwave application which uses the dielectric ceramic composition, or a dielectric filter having a plurality of such dielectric resonators, and a method of producing the dielectric resonator or dielectric filter.

    摘要翻译: 公开了一种电介质陶瓷组合物,其包括:氧化钡和氧化钛的主要陶瓷组合物,或氧化钡,氧化钛和氧化锶,氧化钙,氧化锆和氧化锌中的至少一种,该组成由(1- ab)BaO.aSrO.bCaO.x [(1-c)TiO 2·CZrO 2]·yZnO,其中3.1