公开(公告)号：WO1997035348A2

公开(公告)日：1997-09-25

申请号：PCT/US1997005219

申请日：1997-03-21

Applicant: ALLIEDSIGNAL INC.

Inventor： ALLIEDSIGNAL INC. ,  CUI, Changxing ,  BAUGHMAN, Ray, H. ,  IQBAL, Zafar ,  KAZMAR, Theodore, R. ,  DAHLSTROM, David, K.

IPC: H01L41/18

CPC classification number: H01L41/257 ,  H01L41/183 ,  H01L41/37

Abstract: Methods and compositions are described for the preparation of piezoelectric ceramic-polymer composites having improved properties for application in piezoelectric devices. These composites consist of piezoelectric particles embedded in a polymer matrix. The improvements of this invention result from discoveries of the effects of particle size, particle size dispersity, volumetric loading levels, ceramic dielectric constant, and polymer dielectric constant on performance. Various improved devices based on these compositions are also described.

Abstract translation: 描述了用于制备具有改进的用于压电装置的性能的压电陶瓷 - 聚合物复合材料的方法和组合物。 这些复合材料由嵌入聚合物基质中的压电颗粒组成。 本发明的改进是由于粒度，粒度分散度，体积负载水平，陶瓷介电常数和聚合物介电常数对性能的影响的发现而产生的。 还描述了基于这些组合物的各种改进的装置。

公开(公告)号：EP1044466A2

公开(公告)日：2000-10-18

申请号：EP99905420.8

申请日：1999-01-07

Applicant: AlliedSignal Inc.

Inventor： CUI, Changxing ,  BAUGHMAN, Ray, Henry ,  IQBAL, Zafar ,  KAZMAR, Theodore, Robert ,  DAHLSTROM, David, Keith

IPC: H01L21/00

CPC classification number: H01L41/37 ,  H01L41/183

Abstract: This invention relates to compositions and processes for the fabrication of piezoelectric composites having improved figures of merit for both sensor and non-sensor applications. These composites comprise piezoelectric particles embedded in a polymer matrix. The improvements of this invention result from discoveries of the effects of polymer bulk compliance, polymer anisotropy, polymer melt index, and polymer/ceramic wettability on performance. The loss corrected figure of merit (ghdh/tanδ) obtained for the 0-3 composites is as high as 10.5 x 10-10 m2/N, which is about four times higher than previously published for 0-3 composites of the prior art. Methods are described for the introduction of anisotropy into ceramic particle/polymer composites, so that cancellation effects that degrade the piezoelectric properties of composites can be reduced.

公开(公告)号：EP1121334A1

公开(公告)日：2001-08-08

申请号：EP99954909.0

申请日：1999-10-13

Applicant: AlliedSignal Inc.

Inventor： ZAKHIDOV, Anvar ,  BAUGHMAN, Ray ,  CUI, Changxing ,  KHAYRULLIN, Ilyas, I. ,  LIU, Lo-Min ,  UDOD, Igor ,  SU, Ji ,  KOZLOV, Mikhail

IPC: C04B38/04 ,  C22C1/08 ,  C08J9/26

CPC classification number: G02B1/005 ,  C04B38/0022 ,  C04B38/045 ,  C04B2111/80 ,  C04B2111/92 ,  C09B69/00 ,  G02B6/1225 ,  G02F2202/32 ,  C04B35/52 ,  C04B35/522

Abstract: This invention relates to processes for the assembly of three-dimensional structures having periodicities on the scale of optical wavelengths, and at both smaller and larger dimensions, as well as compositions and applications therefore. Invention embodiments involve the self assembly of three-dimensionally periodic arrays of spherical particles, the processing of these arrays so that both infiltration and extraction processes can occur, one or more infiltration steps for these periodic arrays, and, in some instances, extraction steps. The product articles are three-dimensionally periodic on a scale where conventional processing methods cannot be used. Articles and materials made by these processes are useful as thermoelectrics and thermionics, electrochromic display elements, low dielectric constant electronic substrate materials, electron emitters (particularly for displays), piezoelectric sensors and actuators, electrostrictive actuators, piezochromic rubbers, gas storage materials, chromatographic separation materials, catalyst support materials, photonic bandgap materials for optical circuitry, and opalescent colorants for the ultraviolet, visible, and infrared regions.

Abstract translation: 本发明涉及用于组装三维结构的方法，该三维结构在光学波长的尺度上具有周期性，并且在较小和较大的尺寸以及组合物和应用中都是这样。 本发明的实施方案涉及三维周期性球形颗粒阵列的自组装，这些阵列的处理使得渗透和提取过程都可以发生，这些周期性阵列的一个或多个渗透步骤，以及在一些情况下的提取步骤。 产品是按照常规加工方法不能使用的尺寸进行三维周期性的。 这些工艺制成的制品和材料可用作热电材料和热电偶，电致变色显示元件，低介电常数电子衬底材料，电子发射器（特别是显示器），压电传感器和致动器，电致伸缩致动器，压电变色橡胶，储气材料，色谱分离 材料，催化剂载体材料，用于光学电路的光子带隙材料和用于紫外线，可见光和红外区域的乳白色着色剂。

公开(公告)号：EP1044466B1

公开(公告)日：2003-03-26

申请号：EP99905420.8

申请日：1999-01-07

Applicant: AlliedSignal Inc.

Inventor： CUI, Changxing ,  BAUGHMAN, Ray, Henry ,  IQBAL, Zafar ,  KAZMAR, Theodore, Robert ,  DAHLSTROM, David, Keith

IPC: H01L21/00

CPC classification number: H01L41/37 ,  H01L41/183

公开(公告)号：EP0888643A2

公开(公告)日：1999-01-07

申请号：EP97922285.0

申请日：1997-03-21

Applicant: AlliedSignal Inc.

Inventor： CUI, Changxing ,  BAUGHMAN, Ray, H. ,  IQBAL, Zafar ,  KAZMAR, Theodore, R. ,  DAHLSTROM, David, K.

IPC: H01L41

CPC classification number: H01L41/257 ,  H01L41/183 ,  H01L41/37

Abstract: Methods and compositions are described for the preparation of piezoelectric ceramic-polymer composites having improved properties for application in piezoelectric devices. These composites consist of piezoelectric particles embedded in a polymer matrix. The improvements of this invention result from discoveries of the effects of particle size, particle size dispersity, volumetric loading levels, ceramic dielectric constant, and polymer dielectric constant on performance. Various improved devices based on these compositions are also described.