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公开(公告)号：US4485321A
公开(公告)日：1984-11-27
申请号：US344098
申请日：1982-01-29
CPC分类号： B06B1/0622 , Y10S73/04
摘要： A broad bandwidth electro-mechanical transducer is shaped into a wedge of varying thickness, with a plurality of PZT elements or sheets embedded in an inactive polymer. The transducer is driven at frequencies corresponding to resonance of the thickness dimensions. The piezoelectric elements with different thicknesses are decoupled mechanically from one another using an inactive polymer of low Q so as to prevent interference.
摘要翻译： 宽带电机转换器成形为不同厚度的楔形，多个PZT元件或片嵌入非活性聚合物中。 换能器以对应于厚度尺寸的共振的频率驱动。 具有不同厚度的压电元件使用低Q的无活性聚合物彼此机械地解耦，以防止干扰。
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公开(公告)号：US4412148A
公开(公告)日：1983-10-25
申请号：US257289
申请日：1981-04-24
IPC分类号： H01L41/113 , H01L41/18 , H01L41/08
CPC分类号： H01L41/1132 , H01L41/183 , H01L41/1876 , Y10S310/80
摘要： A composite of PZT (Lead Zirconate Titanate) and a compliant polymer matrixaving 3-1 connectivity (i.e., in a diphasic material, one of the two phases is continuously self-connected in all three mutually perpendicular directions and the second phase is self-connected only along one of the three mutually perpendicular directions) and fabrication method thereof is described. An array of parallel PZT rod elements is embedded in a mechanically compliant polymer matrix with their axes along the direction of the poling electric field. Such a composite has a high value of g.sub.h, d.sub.h and g.sub.33 with very little sacrifice in the value of d.sub.33.
摘要翻译： PZT（铅酸锆酸铅）和具有3-1连通性的顺应性聚合物基质的复合物（即，在双相材料中，两相中的一个在所有三个相互垂直的方向上连续自连接， 描述了三个相互垂直方向中的一个相互连接的方式）及其制造方法。 平行的PZT棒元件的阵列被嵌入机械柔性聚合物基体中，其轴线沿着极化电场的方向。 这种复合材料具有高的gh，dh和g33值，d33的值几乎没有牺牲。
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公开(公告)号：US4027074A
公开(公告)日：1977-05-31
申请号：US498695
申请日：1974-08-19
CPC分类号： H01G7/02 , C03C10/0072 , C30B1/02 , C30B29/32
摘要： Lead germanate, Pb.sub.5 Ge.sub.3 O.sub.11, or lead germanate/silicate in which up to 2/3 on a molar basis of the germanium has been substituted with silicon, can be formed from a glassy state to a ferroelectric state by a simple annealing process. The lead germanate or lead germanate/silicate is heated to a temperature sufficient to anneal it into a crystalline phase, then cooled below the ferroelectric transition temperature for the composition while an electric field is applied.
摘要翻译： 可以通过简单的退火工艺，从玻璃状态到铁电状态，可以通过锗代替锗中的高达2/3的锗酸铅，Pb5Ge3O11或锗酸锗/硅酸盐。 将锗酸铅或锗酸铅/硅酸盐加热到足以将其退火成晶相的温度，然后在施加电场的情况下冷却到组合物的铁电转变温度以下。
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公开(公告)号：US4624796A
公开(公告)日：1986-11-25
申请号：US804574
申请日：1985-12-04
CPC分类号： H01L41/187 , H01L41/183
摘要： A piezoelectric ceramic powder comprises a solid solution of PbTiO.sub.3 and BiFeO.sub.3 wherein a portion of the iron content is replaced with manganese. A piezoelectric ceramic-polymer composite of 0-3 connectivity is disclosed using as the piezoelectric filler the manganese-doped solid solution.
摘要翻译： 压电陶瓷粉末包含PbTiO 3和BiFeO 3的固溶体，其中一部分铁含量被锰代替。 公开了一种0-3连通性的压电陶瓷 - 聚合物复合材料，其用作为锰掺杂固溶体的压电填料。
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5.发明授权
公开(公告)号：US4109359A
公开(公告)日：1978-08-29
申请号：US693808
申请日：1976-06-07
申请人： Leslie E. Cross , Robert E. Newnham
发明人： Leslie E. Cross , Robert E. Newnham
IPC分类号： H01L41/22
CPC分类号： H01L41/253 , Y10T29/42
摘要： Ferroelectric crystals and ceramics prepared with tailored domain patternshich are selected to enhance or suppress certain modes of vibration which may include those normally unattainable such as, for example, second harmonics.
摘要翻译： 制备的铁电晶体和陶瓷，其具有定制的畴图案，其被选择以增强或抑制某些振动模式，其可以包括通常不可达到的，例如二次谐波。
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公开(公告)号：US4761711A
公开(公告)日：1988-08-02
申请号：US58316
申请日：1987-06-05
CPC分类号： H01G4/1281 , Y10T29/435
摘要： A barrier layer ceramic capacitor and a method of making the same, using barium plumbate or modified barium plumbate as the base material. The fabricating process is a one step process requiring a maximum sintering temperature of 1000.degree. C.
摘要翻译： 阻挡层陶瓷电容器及其制造方法，使用铅酸铅或改性钡铅酸盐作为基材。 制造工艺是需要最高烧结温度为1000℃的一步法。
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公开(公告)号：US4227111A
公开(公告)日：1980-10-07
申请号：US24827
申请日：1979-03-28
CPC分类号： H01L41/37 , H01L41/183 , Y10T29/42
摘要： A flexible, low-density piezoelectric transducer utilizing a PZT-polymer posite that is formed with the two phases three-dimensionally interpenetrant. The ceramic PZT microstructure, which is produced by a replication process that in one embodiment reproduces the structure of a coral species, is filled with silicone rubber and thereafter its transverse connectivity is broken by a light shearing deformation to give it flexibility.
摘要翻译： 一种灵活的低密度压电传感器，其使用由三相互穿的两相形成的PZT-聚合物复合材料。 通过在一个实施例中再现珊瑚物种的结构的复制过程产生的陶瓷PZT微观结构被硅橡胶填充，此后，其横向连接性被轻的剪切变形破坏以赋予它柔韧性。
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8.发明授权Method of detecting sound in water using piezoelectric-polymer composites with 0-3 connectivity 失效使用具有0-3连通性的压电 - 聚合物复合材料检测水中声音的方法
公开(公告)号：US4977547A
公开(公告)日：1990-12-11
申请号：US271579
申请日：1988-11-15
IPC分类号： H01L41/18
CPC分类号： H01L41/1878 , H01L41/183
摘要： A hydrophone device is provided with a piezoelectric ceramic-polymer composite of 0-3 connectivity in which the piezoelectric filler comprises a solid solution of PBTiO.sub.3 -BiFeO.sub.3 wherein the solid solution contains 50-80 wt. % of the BiFeO.sub.3. The piezoelectric ceramic-polymer composite has large hydrostatic piezoelectric charge and voltage coefficients which are desirable in hydrophone devices.
摘要翻译： 水听器装置具有0-3连通性的压电陶瓷 - 聚合物复合材料，其中压电填料包括PBTiO3-BiFeO3的固溶体，其中固溶体含有50-80wt。 ％的BiFeO3。 压电陶瓷 - 聚合物复合材料在水听器装置中具有较大的静压压电荷和电压系数。
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公开(公告)号：US4422003A
公开(公告)日：1983-12-20
申请号：US408320
申请日：1982-08-16
CPC分类号： H01L41/18 , H01L41/183 , H01L41/1876
摘要： Composites of lead zirconate titanate (PZT) and inactive polymers with 3-1 and 3-2 patterns and a method of fabrication thereof are described. Fabrication is accomplished by drilling holes in sintered PZT blocks and filling the holes with epoxy or some other inactive polymer. The influence of hole size and volume fraction PZT on the hydrostatic properties of the composite is evaluated. By decoupling the piezoelectric coefficients d.sub.33 and d.sub.31 in the composite, the hydrostatic coefficients are greatly enhanced.
摘要翻译： 描述了锆钛酸铅（PZT）和具有3-1和3-2图案的无活性聚合物的复合材料及其制造方法。 通过在烧结的PZT块中钻孔并用环氧树脂或一些其它无活性聚合物填充孔来实现加工。 评估孔尺寸和体积分数PZT对复合材料静液压性能的影响。 通过对复合材料中的压电系数d33和d31进行解耦，静水系数大大提高。
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公开(公告)号：USH415H
公开(公告)日：1988-01-05
申请号：US44398
申请日：1987-04-27
IPC分类号： H01C7/02
CPC分类号： H01C7/021
摘要： A multilayer thermistor and a method of making it are disclosed. The thertor has a positive temperature coefficient of resistance (PTCR) and a room temperature resistance lower than prior art thermistors of the same size. The thermistor is comprised of a plurality of layers of material having the PTCR characteristic laminated in alternation with layers of electrodes, the outer two layers of the thermistor being PTCR layers. Alternate electrodes are electrically connected in common to a pair of conductors forming thereby parallel resistance paths across each layer. The more resistance paths the thermistor has, the lower the overall resistance of the device.
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