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公开(公告)号：EP0488521A1
公开(公告)日：1992-06-03
申请号：EP91309868.7
申请日：1991-10-25
申请人： GEC-MARCONI LIMITED
CPC分类号： C04B35/497 , H01B3/12 , H01G4/1263
摘要： The present invention discloses a material having a composition:
(PbSc 0.5 Ta 0.5 O₃) 100-x (PbZrO₃) x
wherein x is greater than 0 mole % and less than 20 mole %. The method of producing such ceramic materials comprises producing a mixture of predetermined quantities of (PbSc 0.5 Ta 0.5 O₃) and PbZrO₃) and calcining the mixture to form said composition.摘要翻译： 本发明公开了具有（PbSc0.5Ta0.5O3）100-x（PbZrO3）x的组成的材料，其中x大于0摩尔％且小于20摩尔％。 制造这种陶瓷材料的方法包括制备预定量的（PbSc0.5Ta0.5O3）和PbZrO3的混合物，并煅烧混合物以形成所述组合物。
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公开(公告)号：EP0194900A2
公开(公告)日：1986-09-17
申请号：EP86301923.8
申请日：1986-03-17
申请人： GEC-MARCONI LIMITED
CPC分类号： H01L37/025 , C01G43/006 , C01G45/006 , C01G49/009 , C01P2002/50 , C01P2002/54 , C01P2006/40 , C04B35/491 , C04B35/493
摘要： A pyroelectric ceramic having the composition:- where ⌀ is U (uranium) or Mn (manganese) and in which a is a number substantially within the range 0.01 to 0.10; x is a number substantially within the range 0.10 to 0.25; y is a number substantially within the range 0 to 0.4; z is a number substantially within the range 0 to 0.05 and 8 is a number substantially within the range 0 to 0.06. Methods of fabricating the pyroelectric ceramic are also described.
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公开(公告)号：EP0564070A1
公开(公告)日：1993-10-06
申请号：EP93300591.0
申请日：1993-01-27
申请人： GEC-MARCONI LIMITED
CPC分类号： G01N29/022 , G01N2291/0256 , G01N2291/0423 , G01N2291/0426 , G01N2291/0427
摘要： This invention relates to an an apparatus for monitoring a fluid medium comprising a piezoelectric element provided with a layer including an absorbent material or a catalyst material. The apparatus further includes means for generating a Surface Skimming Bulk Wave for propagation along said piezoelectric element, said layer being capable of confining said wave to said element and being capable of changing its acoustic properties in response to absorption thereby and retention therein by chemical linkage of one or more analytes from the fluid medium or in response to chemical and/or physical changes in the fluid medium and means for monitoring changes in the propagated acoustic Wave caused by changes in the acoustic properties of said layer.
摘要翻译： 本发明涉及一种用于监测流体介质的装置，其包括设置有包括吸收材料或催化剂材料的层的压电元件。 该装置还包括用于产生用于沿着所述压电元件传播的表面平滑体波的装置，所述层能够将所述波限制在所述元件上，并且能够响应于其吸收而改变其声学特性，并通过化学键 来自流体介质的一种或多种分析物或响应于流体介质中的化学和/或物理变化以及用于监测由所述层的声学性质的变化引起的传播声波的变化的装置。
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4.发明公开A method of manufacturing free standing perovskite lead scandium tantalate film 失效Verfahren zur Herstellung eines selbsttragenden Perovskit-Bleiscandiumtantalat Films。
公开(公告)号：EP0487213A1
公开(公告)日：1992-05-27
申请号：EP91309869.5
申请日：1991-10-25
申请人： GEC-MARCONI LIMITED
CPC分类号： C01G35/006 , C01P2002/34 , C01P2004/80 , C01P2004/84 , C04B35/497 , C23C14/088 , C23C16/01 , C23C16/409 , H01B3/12
摘要： A method of manufacturing a free standing perovskite lead scandium tanatalate film is described. A film of lead scandium tantalate is formed on a layer of MgO deposited on a sapphire substrate. The MgO layer is etched by phosphoric acid thereby releasing the lead scandium tantalate film from the substrate.
摘要翻译： 描述了一种制备自立式钙钛矿铅钪钠盐膜的方法。 在沉积在蓝宝石衬底上的MgO层上形成铅钪铅膜。 通过磷酸蚀刻MgO层，从而从基板释放铅钪锡膜。
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公开(公告)号：EP0186311B1
公开(公告)日：1991-11-06
申请号：EP85308520.7
申请日：1985-11-25
申请人： GEC-MARCONI LIMITED
CPC分类号： H01L41/37 , H01L41/183 , Y10T29/42
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公开(公告)号：EP0186311A3
公开(公告)日：1989-01-18
申请号：EP85308520.7
申请日：1985-11-25
申请人： GEC-MARCONI LIMITED
CPC分类号： H01L41/37 , H01L41/183 , Y10T29/42
摘要： A method of fabricating a piezoelectric composite comprising an array of piezoelectric elements (2) and a reinforcement structure embedded in a material. The invention includes the step of forming the reinforcement structure prior to assembly with the piezoelectric elements (2), the reinforcement structure defining an array of holes (10) for receiving the piezoelectric elements.
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公开(公告)号：EP0186311A2
公开(公告)日：1986-07-02
申请号：EP85308520.7
申请日：1985-11-25
申请人： GEC-MARCONI LIMITED
CPC分类号： H01L41/37 , H01L41/183 , Y10T29/42
摘要： A method of fabricating a piezoelectric composite comprising an array of piezoelectric elements (2) and a reinforcement structure embedded in a material. The invention includes the step of forming the reinforcement structure prior to assembly with the piezoelectric elements (2), the reinforcement structure defining an array of holes (10) for receiving the piezoelectric elements.
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