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公开(公告)号：US5539965A
公开(公告)日：1996-07-30
申请号：US263564
申请日：1994-06-22
申请人： Ahmad Safari , Victor F. Janas
发明人： Ahmad Safari , Victor F. Janas
CPC分类号： H01L41/37 , B06B1/06 , H01L41/183 , H01L41/1875 , Y10T29/42
摘要： A process for forming piezoelectric composites allows for novel composite designs, including composites with different polarizable material regions and composites with a gradient in volume fraction of polarizable material. Composites with fine-scale microstructures may be formed. The new forming method is an improvement to the traditional "dice and fill" technique currently being utilized to form piezoelectric composites.
摘要翻译： 用于形成压电复合材料的方法允许新颖的复合设计，包括具有不同可极化材料区域的复合材料和具有可极化材料体积分数梯度的复合材料。 可以形成具有精细尺寸微结构的复合材料。 新的成型方法是对目前用于形成压电复合材料的传统“骰子和填充”技术的改进。
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2.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：US4726099A
公开(公告)日：1988-02-23
申请号：US908422
申请日：1986-09-17
申请人： Roger J. Card , Michael P. O'Toole , Ahmad Safari
发明人： Roger J. Card , Michael P. O'Toole , Ahmad Safari
摘要： Piezoelectric ceramic polymer matrices, piezoelectric composites, and methods of make the matrices and composites are disclosed.
摘要翻译： 公开了压电陶瓷聚合物基体，压电复合材料和制备基体和复合材料的方法。
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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：US20110043081A1
公开(公告)日：2011-02-24
申请号：US12861307
申请日：2010-08-23
申请人： Ahmad Safari , Piyalak Ngernchuklin
发明人： Ahmad Safari , Piyalak Ngernchuklin
IPC分类号： H01L41/18
CPC分类号： H01L41/098
摘要： An actuator apparatus and method may comprise a monolithic construction of piezoelectric effect and electrostrictive effect materials. The actuator may comprise at least one piezoelectric material layer and at least one electrostrictive material layer. The at least one piezoelectric material layer may comprise a plurality of piezoelectric layers or the at least one electrostrictive layer may comprise a plurality of electrostrictive layers. The actuator may comprise the monolithic construction of piezoelectric and electrostrictive materials having a perimeter; a rigid plate; an adhesion mechanism holding the perimeter to the rigid plate preventing movement of the perimeter with respect to the rigid plate. The monolithic construction may be formed by co-sintering and co-pressing the piezoelectric effect material with the electrostrictive effect material. The actuator could comprise PMN/PT-65/35 piezoelectric and PMN/PT-90/10 electrostrictive. The actuator could be included in, such as, a nano-positioner, a valve actuator, an adaptive optical mounting, or a micropump.
摘要翻译： 致动器装置和方法可以包括压电效应和电致伸缩效应材料的整体结构。 致动器可以包括至少一个压电材料层和至少一个电致伸缩材料层。 所述至少一个压电材料层可以包括多个压电层，或者所述至少一个电致伸缩层可以包括多个电致伸缩层。 致动器可以包括具有周长的压电和电致伸缩材料的整体结构; 刚性板; 将周边保持在刚性板上的粘合机构防止周边相对于刚性板移动。 单片结构可以通过将压电效应材料与电致伸缩效应材料共烧并共压而形成。 执行器可以包括PMN / PT-65/35压电和PMN / PT-90/10电致伸缩。 致动器可以包括在例如纳米定位器，阀致动器，自适应光学安装或微型泵中。
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公开(公告)号：US5796207A
公开(公告)日：1998-08-18
申请号：US847901
申请日：1997-04-28
CPC分类号： H01L41/18 , H01L41/183
摘要： This invention relates to novel oriented piezoelectric ceramic and ceramic/polymer composites. More particularly, it provides a novel piezoelectric composite design wherein the ceramic piezoelectric phase is oriented at an angle with respect to the direction of applied stress, thus giving improved electromechanical properties.
摘要翻译： 本发明涉及新型取向压电陶瓷和陶瓷/聚合物复合材料。 更具体地，它提供了一种新颖的压电复合材料设计，其中陶瓷压电相位相对于所施加的应力方向成一定角度定向，从而提供改善的机电性能。
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7.发明授权
公开(公告)号：US5043622A
公开(公告)日：1991-08-27
申请号：US531742
申请日：1990-06-01
申请人： Geon Sagong , Ahmad Safari , Sei-Joo Jang
发明人： Geon Sagong , Ahmad Safari , Sei-Joo Jang
IPC分类号： H01L41/18
CPC分类号： H01L41/183 , Y10T29/42
摘要： A PET-polymer composite of 0-3 connectivity further includes a third phase particulate additive of conductive or semiconductive material to increase the electrical conductivity of the polymer matrix.
摘要翻译： 0-3连接的PET聚合物复合材料还包括导电或半导体材料的第三相微粒添加剂，以增加聚合物基质的导电性。
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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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公开(公告)号：US5818149A
公开(公告)日：1998-10-06
申请号：US622510
申请日：1996-03-25
申请人： Ahmad Safari , Victor F. Janas , Amit Bandyopadhyay , Rajesh K. Panda , Mukesh Agarwala , Stephen C. Danforth
发明人： Ahmad Safari , Victor F. Janas , Amit Bandyopadhyay , Rajesh K. Panda , Mukesh Agarwala , Stephen C. Danforth
CPC分类号： H01L41/37 , H01L41/183
摘要： A process for forming novel ceramic composites is described. The disclosed process allows for novel composite designs, including composites with regions containing different materials. Moreover, the disclosed process allows for the manufacture of composites with volume fraction gradients of different types of material. Composites with fine-scale microstructures may be formed.
摘要翻译： 描述了形成新型陶瓷复合材料的方法。 所公开的方法允许新颖的复合设计，包括具有包含不同材料的区域的复合材料。 此外，所公开的方法允许制造具有不同类型材料的体积分数梯度的复合材料。 可以形成具有精细尺寸微结构的复合材料。
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公开(公告)号：US5738817A
公开(公告)日：1998-04-14
申请号：US598276
申请日：1996-02-08
申请人： Stephen C. Danforth , Mukesh Agarwala , Amit Bandyopadghyay , Noshir Langrana , Vikram R. Jamalabad , Ahmad Safari , Remco van Weeren
发明人： Stephen C. Danforth , Mukesh Agarwala , Amit Bandyopadghyay , Noshir Langrana , Vikram R. Jamalabad , Ahmad Safari , Remco van Weeren
CPC分类号： B29C67/0081 , B29C41/36 , D01F1/10
摘要： A fused deposition process is used to form three-dimensional solid objects from a mixture including a particulate composition dispersed in a binder. The article is formed by depositing the mixture in repeated layers of predefined thickness, with each layer solidifying before the next adjacent layer is dispensed. Following formation and a binder removal step, the article may be at least partially densified to achieve preselected properties. The process permits three-dimensional articles to be formed relatively quickly and inexpensively, without the need for molds or other tooling.
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