Acoustic properties of alumina colloidal/polymer nano-composite film on silicon

Rui Zhang; Wenwu Cao; Qifa Zhou; Jung Hyui Cha; K. Kirk Shung; Yuhong Huang

doi:10.1109/TUFFC.2007.270

Acoustic properties of alumina colloidal/polymer nano-composite film on silicon

Rui Zhang, Wenwu Cao, Qifa Zhou, Jung Hyui Cha, K. Kirk Shung, Yuhong Huang

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Alumina colloidal/polymer composite films on silicon substrates have been successfully fabricated using the sol-gel method, in which the crystallite sizes of alumina are between 20 and 50 nm. The density and ultrasonic phase velocities in these films with different alumina ratios from 14% to 32% were measured at the desired operating frequency. We have proved that the density, acoustic phase velocities, and hence the acoustic impedance of the nanocomposite films increase with the alumina content, which gives us another option of tailoring the acoustic impedance of the nano-composite film for making the matching layer of high-frequency medical ultrasonic transducers.

Original language	English (US)
Pages (from-to)	467-469
Number of pages	3
Journal	IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume	54
Issue number	3
DOIs	https://doi.org/10.1109/TUFFC.2007.270
State	Published - Mar 2007

All Science Journal Classification (ASJC) codes

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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10.1109/TUFFC.2007.270

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title = "Acoustic properties of alumina colloidal/polymer nano-composite film on silicon",

abstract = "Alumina colloidal/polymer composite films on silicon substrates have been successfully fabricated using the sol-gel method, in which the crystallite sizes of alumina are between 20 and 50 nm. The density and ultrasonic phase velocities in these films with different alumina ratios from 14% to 32% were measured at the desired operating frequency. We have proved that the density, acoustic phase velocities, and hence the acoustic impedance of the nanocomposite films increase with the alumina content, which gives us another option of tailoring the acoustic impedance of the nano-composite film for making the matching layer of high-frequency medical ultrasonic transducers.",

author = "Rui Zhang and Wenwu Cao and Qifa Zhou and Cha, {Jung Hyui} and Shung, {K. Kirk} and Yuhong Huang",

note = "Funding Information: Manuscript received March 3, 2006; accepted July 15, 2006. This research was sponsored by the NIH Grant for the Ultrasonic Transducer Engineering Resource (Grant No. P41-EB2182-07). R. Zhang is with the Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China. W. Cao is with the Materials Research Institute, The Pennsylvania State University, University Park, PA 16802 (e-mail: cao@math.psu.edu). Q. Zhou, J. H. Cha, and K. K. Shung are with the Department of Biomedical Engineering and NIH Transducer Resource Center, University of Southern California, Los Angeles, CA 90089. Y. Huang is with Chemat Technology, Inc., Northridge, CA 91324. Digital Object Identifier 10.1109/TUFFC.2007.270",

year = "2007",

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doi = "10.1109/TUFFC.2007.270",

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AU - Zhang, Rui

AU - Cao, Wenwu

AU - Zhou, Qifa

AU - Cha, Jung Hyui

AU - Shung, K. Kirk

AU - Huang, Yuhong

N1 - Funding Information: Manuscript received March 3, 2006; accepted July 15, 2006. This research was sponsored by the NIH Grant for the Ultrasonic Transducer Engineering Resource (Grant No. P41-EB2182-07). R. Zhang is with the Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China. W. Cao is with the Materials Research Institute, The Pennsylvania State University, University Park, PA 16802 (e-mail: cao@math.psu.edu). Q. Zhou, J. H. Cha, and K. K. Shung are with the Department of Biomedical Engineering and NIH Transducer Resource Center, University of Southern California, Los Angeles, CA 90089. Y. Huang is with Chemat Technology, Inc., Northridge, CA 91324. Digital Object Identifier 10.1109/TUFFC.2007.270

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AB - Alumina colloidal/polymer composite films on silicon substrates have been successfully fabricated using the sol-gel method, in which the crystallite sizes of alumina are between 20 and 50 nm. The density and ultrasonic phase velocities in these films with different alumina ratios from 14% to 32% were measured at the desired operating frequency. We have proved that the density, acoustic phase velocities, and hence the acoustic impedance of the nanocomposite films increase with the alumina content, which gives us another option of tailoring the acoustic impedance of the nano-composite film for making the matching layer of high-frequency medical ultrasonic transducers.

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Acoustic properties of alumina colloidal/polymer nano-composite film on silicon

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