公开(公告)号：US20220243022A1

公开(公告)日：2022-08-04

申请号：US17622358

申请日：2020-08-04

申请人： Agency for Science, Technology and Research

发明人： Hong YAN ,  Kui YAO ,  Shuting CHEN ,  Poh Chong LIM

IPC分类号： C08J9/00 ,  C08J9/06 ,  C08J9/12 ,  E04B1/84 ,  G10K11/162

摘要： A porous composite material (50) for sound absorption and a method (10) of producing the porous composite material (50) are provided. The method (10) includes preparing (12) a mixture of mechano-electrical conversion elements (56) and electro-thermal conversion elements (58) in an organic solvent. The mixture of the mechano-electrical conversion elements (56) and the electro-thermal conversion elements (58) in the organic solvent is mixed (14) with an aqueous solvent to precipitate a piezoelectric hybrid filler material (54). The piezoelectric hybrid filler material (54) is mixed (16) with a precursor. A foaming operation is performed (18) with the precursor to produce the porous composite material (50).

公开(公告)号：US20230326442A1

公开(公告)日：2023-10-12

申请号：US18022975

申请日：2021-08-04

申请人： Agency for Science, Technology and Research

发明人： Kui YAO ,  Siao Li LIEW ,  Shuting CHEN ,  Sze Yu TAN ,  Rogério SALLOUM ,  Hong YAN ,  Lei ZHANG ,  Szu Cheng LAI

IPC分类号： G10K11/165 ,  C09D7/61 ,  C09D7/40 ,  C09D5/24 ,  C09D163/00 ,  C09D137/00 ,  C09D123/08 ,  C09D113/00

CPC分类号： G10K11/165 ,  C09D7/61 ,  C09D7/70 ,  C09D5/24 ,  C09D163/00 ,  C09D137/00 ,  C09D123/0853 ,  C09D113/00 ,  C09D7/69

摘要： A composite coating material for passive vibration damping is provided. The composite coating material includes a polymer matrix, and a piezoelectric ceramic filler and an electrically conductive filler dispersed in the polymer matrix. Particles of the piezoelectric ceramic filler have an average particle size of greater than about 100 microns (μm).

公开(公告)号：US20210341427A1

公开(公告)日：2021-11-04

申请号：US17286318

申请日：2019-10-25

申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

发明人： Zheng Zheng WONG ,  Kui YAO ,  Shuting CHEN ,  Lei ZHANG

IPC分类号： G01N29/04 ,  H01L41/187

摘要： A transducer for monitoring integrity of an adhesive bond between a first element and a second element, the transducer comprising: a transducing adhesive, the transducing adhesive provided to act as at least one of: an actuator to convert an electrical signal to an acoustic signal and a sensor to convert an acoustic signal to an electrical signal; and an electrode provided on the transducing adhesive, the electrode provided to perform at least one of: providing an electrical signal to the transducing adhesive and receiving an electrical signal from the transducing adhesive; wherein, in use, the transducer is provided at least partially in the adhesive bond between the first element and the second element, and the acoustic signal is passed through the adhesive bond.