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    GLASS CERAMICS FOR USE AS A DIELECTRIC FOR GIGAHERTZ APPLICATIONS
    3.
    发明申请
    GLASS CERAMICS FOR USE AS A DIELECTRIC FOR GIGAHERTZ APPLICATIONS 审中-公开
    玻璃陶瓷用作GIGAHERTZ应用的电介质

    公开(公告)号：US20130120193A1

    公开(公告)日：2013-05-16

    申请号：US13297441

    申请日：2011-11-16

    申请人： Bernd Hoppe ,  Michael Kluge ,  Stephan Knoener ,  Martin Letz ,  Bernd Ruedinger ,  Daniela Seiler

    发明人： Bernd Hoppe ,  Michael Kluge ,  Stephan Knoener ,  Martin Letz ,  Bernd Ruedinger ,  Daniela Seiler

    IPC分类号： C03C10/00 ,  H01Q9/04

    CPC分类号： C03C10/0036 ,  C03C3/068 ,  C03C4/16 ,  C03C10/0054 ,  H01Q9/0407

    摘要： A glass-ceramic which is particularly suitable as dielectric for use in the high-frequency range, in particular as dielectric resonator, as electronic frequency filter element or as antenna element is disclosed. The glass-ceramic has at least the following constituents (in mol % on an oxide basis): 5-50% of SiO2, 0-20% of Al2O3, 0-25% of B2O3, 0-25% of BaO, 10-60% of TiO2, 5-35% of Re2O3, where Ba can be partly replaced by Sr, Ca, Mg, where Re is a lanthanide or yttrium and where Ti can be partly replaced by Zr, Hf, Y, Nb, V, Ta.

    摘要翻译： 公开了特别适用于高频范围的电介质的玻璃陶瓷，特别是作为电介质谐振器的电子频率滤波器元件或天线元件。 玻璃陶瓷至少具有以下成分（以氧化物为基准的摩尔％）：5-50％的SiO 2，0-20％的Al 2 O 3，0-25％的B 2 O 3，0-25％的BaO， 60％的TiO 2，5-35％的Re 2 O 3，其中Ba可以部分地被Sr，Ca，Mg替代，其中Re是镧系元素或钇，其中Ti可以部分地被Zr，Hf，Y，Nb， Ta

    GLASS-CERAMIC CONTAINING NANOSCALE BARIUM TITANATE AND PROCESS FOR THE PRODUCTION THEREOF
    4.
    发明申请
    GLASS-CERAMIC CONTAINING NANOSCALE BARIUM TITANATE AND PROCESS FOR THE PRODUCTION THEREOF 有权
    含有纳米碳酸钡的玻璃陶瓷及其生产方法

    公开(公告)号：US20110028298A1

    公开(公告)日：2011-02-03

    申请号：US12793834

    申请日：2010-06-04

    申请人： Bernd HOPPE ,  Daniela Seiler ,  Bernd Ruedinger ,  Ina Mitra ,  Maria-Louisa Reich ,  Martin Letz ,  Michael Kluge

    发明人： Bernd HOPPE ,  Daniela Seiler ,  Bernd Ruedinger ,  Ina Mitra ,  Maria-Louisa Reich ,  Martin Letz ,  Michael Kluge

    IPC分类号： C03C10/02 ,  C03B32/02

    CPC分类号： H01G4/1227 ,  C03C3/062 ,  C03C4/16 ,  C03C10/00 ,  H01G4/12

    摘要： A process for the production of a glass-ceramic comprises the following steps: a) providing a mixture comprising at least SiO2, Al2O3, BaO and TiO2, b) melting the mixture in order to produce a glass phase, c) cooling the glass phase, and d) ceramicizing the glass phase. In the process, the glass phase is heated over the course of at most 5 minutes, preferably over the course of at most 3 minutes, to a temperature in the region of the crystallization temperature of Ba1-xZ1xTi1-yZ2yO3, whereby Z1 is an element selected from the group consisting of Sr, Ca, Ce, Pb, La and Sm, whereby Z2 is an element selected from the group consisting of Zr, Hf, Nb, V, Y, Sc and Ta, and whereby x and y are each independently of one another 0≦x,y≦0.5, preferably 0≦x,y≦0.1, but substantially below the crystallization temperature of Ba[Al2Si2O8].

    摘要翻译： 制备玻璃陶瓷的方法包括以下步骤：a）提供至少包含SiO 2，Al 2 O 3，BaO和TiO 2的混合物，b）熔化混合物以产生玻璃相，c）冷却玻璃相 ，和d）陶瓷化玻璃相。 在该过程中，将玻璃相在至多5分钟的时间内，优选在3分钟以上加热至Ba1-xZ1xTi1-yZ2yO3的结晶温度区域的温度，由此Z1是元素 选自由Sr，Ca，Ce，Pb，La和Sm组成的组，其中Z 2是选自Zr，Hf，Nb，V，Y，Sc和Ta的元素，并且其中x和y各自 彼此独立的是0和nlE; x，y和nlE; 0.5，优选0＆amp; nlE; x，y＆nlE; 0.1，但基本上低于Ba [Al 2 Si 2 O 8]的结晶温度。

    Glass-ceramic containing nanoscale barium titanate and process for the production thereof
    5.
    发明授权
    Glass-ceramic containing nanoscale barium titanate and process for the production thereof 有权
    含有纳米钛酸钡的玻璃陶瓷及其制造方法

    公开(公告)号：US08263509B2

    公开(公告)日：2012-09-11

    申请号：US12793834

    申请日：2010-06-04

    申请人： Bernd Hoppe ,  Daniela Seiler ,  Bernd Ruedinger ,  Ina Mitra ,  Maria-Louisa Reich ,  Martin Letz ,  Michael Kluge

    发明人： Bernd Hoppe ,  Daniela Seiler ,  Bernd Ruedinger ,  Ina Mitra ,  Maria-Louisa Reich ,  Martin Letz ,  Michael Kluge

    IPC分类号： C03C10/02

    CPC分类号： H01G4/1227 ,  C03C3/062 ,  C03C4/16 ,  C03C10/00 ,  H01G4/12

    摘要： A process for the production of a glass-ceramic comprises the following steps: a) providing a mixture comprising at least SiO2, Al2O3, BaO and TiO2, b) melting the mixture in order to produce a glass phase, c) cooling the glass phase, and d) ceramicizing the glass phase. In the process, the glass phase is heated over the course of at most 5 minutes, preferably over the course of at most 3 minutes, to a temperature in the region of the crystallization temperature of Ba1-xZ1xTi1-yZ2yO3, whereby Z1 is an element selected from the group consisting of Sr, Ca, Ce, Pb, La and Sm, whereby Z2 is an element selected from the group consisting of Zr, Hf, Nb, V, Y, Sc and Ta, and whereby x and y are each independently of one another 0≦x,y≦0.5, preferably 0≦x,y≦0.1, but substantially below the crystallization temperature of Ba[Al2Si2O8].

    摘要翻译： 制备玻璃陶瓷的方法包括以下步骤：a）提供至少包含SiO 2，Al 2 O 3，BaO和TiO 2的混合物，b）熔化混合物以产生玻璃相，c）冷却玻璃相 ，和d）陶瓷化玻璃相。 在该过程中，将玻璃相在至多5分钟的时间内，优选在3分钟以上加热至Ba1-xZ1xTi1-yZ2yO3的结晶温度区域的温度，由此Z1是元素 选自由Sr，Ca，Ce，Pb，La和Sm组成的组，其中Z 2是选自Zr，Hf，Nb，V，Y，Sc和Ta的元素，并且其中x和y各自 彼此独立的是0和nlE; x，y和nlE; 0.5，优选0＆amp; nlE; x，y＆nlE; 0.1，但基本上低于Ba [Al 2 Si 2 O 8]的结晶温度。

    Process of producing a glass-ceramic, the glass-ceramic made therby and its uses
    6.
    发明申请
    Process of producing a glass-ceramic, the glass-ceramic made therby and its uses 有权
    制造玻璃陶瓷的方法，玻璃陶瓷制成及其用途

    公开(公告)号：US20090215605A1

    公开(公告)日：2009-08-27

    申请号：US12392408

    申请日：2009-02-25

    申请人： Martin Letz ,  Mark J. Davis ,  Bernd Ruedinger ,  Bernd Hoppe ,  Bianca Schreder ,  Maria-Louisa Aigner ,  Daniela Seiler

    发明人： Martin Letz ,  Mark J. Davis ,  Bernd Ruedinger ,  Bernd Hoppe ,  Bianca Schreder ,  Maria-Louisa Aigner ,  Daniela Seiler

    IPC分类号： C03C10/00

    CPC分类号： C03B32/02 ,  C03C3/062 ,  C03C10/0072 ,  H01G4/1227 ,  H01G4/129 ,  H01G4/30

    摘要： The process of making the glass-ceramic includes ceramicizing a starting glass at a heating or cooling rate during the ceramicization of at least 10 K/min, so that the glass-ceramic contains at least 50% by volume of ferroelectric crystallites with a maximum diameter of from 20 to 100 nm and not more than 10% by volume of nonferroelectric crystallitesis. The glass ceramic produced by the process contains no pores or not more than 0.01% by volume of the pores and a value of e′·V2max of the glass-ceramic is at least 20 (MV/cm)2, wherein e′ is the dielectric constant at 1 kHz and Vmax is the breakdown voltage per unit thickness. The ferroelectric crystallites preferably have a perovskite structure and are composed of substantially pure or doped BaTiO3 and/or BaTi2O5.

    摘要翻译： 制造玻璃陶瓷的过程包括在至少10K /分钟的陶瓷化过程中以加热或冷却速率陶瓷起始玻璃，使得玻璃陶瓷含有至少50体积％的具有最大直径的铁电微晶 为20〜100nm且不大于10体积％的非铁电晶体。 由该方法制造的玻璃陶瓷不含孔或不大于0.01体积％的孔，玻璃陶瓷的e'.V2max的值为至少20（MV / cm）2，其中e'为 介电常数为1 kHz，Vmax为每单位厚度的击穿电压。 铁电晶体优选具有钙钛矿结构，并且由基本上纯的或掺杂的BaTiO 3和/或BaTi 2 O 5构成。