The Experts below are selected from a list of 78 Experts worldwide ranked by ideXlab platform

Guanghui Zhao - One of the best experts on this subject based on the ideXlab platform.

  • Polyvinyl-butyral/Lead Zirconate Titanates composites with high dielectric constant and low dielectric loss
    Scripta Materialia, 2006
    Co-Authors: Lijie Dong, Chuanxi Xiong, Quan Hongying, Guanghui Zhao
    Abstract:

    A novel polymeric composite with high dielectric constant and low dielectric loss has been developed by mixing polyvinyl-butyral (PVB) with ferroelectric ceramic Lead Zirconate Titanates (PZT). The dependence of the dielectric constant on frequency and polymer volume fraction was investigated. The composite shows a high dielectric constant which gives better frequency stability, and lower dielectric loss. The highest dielectric constant of 155 and the lowest dielectric loss of 0.05 can be achieved at a PVB volume fraction of 0.15.

  • polyvinyl butyral Lead Zirconate Titanates composites with high dielectric constant and low dielectric loss
    Scripta Materialia, 2006
    Co-Authors: Lijie Dong, Chuanxi Xiong, Hongying Quan, Guanghui Zhao
    Abstract:

    A novel polymeric composite with high dielectric constant and low dielectric loss has been developed by mixing polyvinyl-butyral (PVB) with ferroelectric ceramic Lead Zirconate Titanates (PZT). The dependence of the dielectric constant on frequency and polymer volume fraction was investigated. The composite shows a high dielectric constant which gives better frequency stability, and lower dielectric loss. The highest dielectric constant of 155 and the lowest dielectric loss of 0.05 can be achieved at a PVB volume fraction of 0.15.

Lijie Dong - One of the best experts on this subject based on the ideXlab platform.

  • Polyvinyl-butyral/Lead Zirconate Titanates composites with high dielectric constant and low dielectric loss
    Scripta Materialia, 2006
    Co-Authors: Lijie Dong, Chuanxi Xiong, Quan Hongying, Guanghui Zhao
    Abstract:

    A novel polymeric composite with high dielectric constant and low dielectric loss has been developed by mixing polyvinyl-butyral (PVB) with ferroelectric ceramic Lead Zirconate Titanates (PZT). The dependence of the dielectric constant on frequency and polymer volume fraction was investigated. The composite shows a high dielectric constant which gives better frequency stability, and lower dielectric loss. The highest dielectric constant of 155 and the lowest dielectric loss of 0.05 can be achieved at a PVB volume fraction of 0.15.

  • polyvinyl butyral Lead Zirconate Titanates composites with high dielectric constant and low dielectric loss
    Scripta Materialia, 2006
    Co-Authors: Lijie Dong, Chuanxi Xiong, Hongying Quan, Guanghui Zhao
    Abstract:

    A novel polymeric composite with high dielectric constant and low dielectric loss has been developed by mixing polyvinyl-butyral (PVB) with ferroelectric ceramic Lead Zirconate Titanates (PZT). The dependence of the dielectric constant on frequency and polymer volume fraction was investigated. The composite shows a high dielectric constant which gives better frequency stability, and lower dielectric loss. The highest dielectric constant of 155 and the lowest dielectric loss of 0.05 can be achieved at a PVB volume fraction of 0.15.

Chuanxi Xiong - One of the best experts on this subject based on the ideXlab platform.

  • Polyvinyl-butyral/Lead Zirconate Titanates composites with high dielectric constant and low dielectric loss
    Scripta Materialia, 2006
    Co-Authors: Lijie Dong, Chuanxi Xiong, Quan Hongying, Guanghui Zhao
    Abstract:

    A novel polymeric composite with high dielectric constant and low dielectric loss has been developed by mixing polyvinyl-butyral (PVB) with ferroelectric ceramic Lead Zirconate Titanates (PZT). The dependence of the dielectric constant on frequency and polymer volume fraction was investigated. The composite shows a high dielectric constant which gives better frequency stability, and lower dielectric loss. The highest dielectric constant of 155 and the lowest dielectric loss of 0.05 can be achieved at a PVB volume fraction of 0.15.

  • polyvinyl butyral Lead Zirconate Titanates composites with high dielectric constant and low dielectric loss
    Scripta Materialia, 2006
    Co-Authors: Lijie Dong, Chuanxi Xiong, Hongying Quan, Guanghui Zhao
    Abstract:

    A novel polymeric composite with high dielectric constant and low dielectric loss has been developed by mixing polyvinyl-butyral (PVB) with ferroelectric ceramic Lead Zirconate Titanates (PZT). The dependence of the dielectric constant on frequency and polymer volume fraction was investigated. The composite shows a high dielectric constant which gives better frequency stability, and lower dielectric loss. The highest dielectric constant of 155 and the lowest dielectric loss of 0.05 can be achieved at a PVB volume fraction of 0.15.

Huang-yao Lin - One of the best experts on this subject based on the ideXlab platform.

  • The FPW Resonator Device Using PZT Sol-Gel Thin Film for Liquid Density Sensing
    2015
    Co-Authors: Huang-yao Lin
    Abstract:

    This paper presents the design, fabrication and preliminary results of a flexure plate wave (FPW) resonator using sol-gel derived Lead Zirconate Titanates (PZT) thin films in the application of liquid density sensing. The propagation velocities of the FPW are very sensitive to the stress and the loading mass on the membrane. This research adopts the PZT thin films using Sol-Gel technique to fabricate the FPW resonator. The material system is Pt/Ti/PZT/LSMO/SiNx. This study presents the simulation model for a two-port SAW resonator over a PZT substrate, which is extended to the design of the FPW resonator. The sensitivity of resonant frequency deviation will relate to the liquid density. The preliminary measurement results show that the resonant frequency and the non-viscous liquid density have a good linear correlation, and demonstrate the feasibility of the sensor application using the FPW resonator

  • The Design of a FPW Resonator Using the Composite Membrane of PZT Layer and SiNx for Liquid Sensing
    2015
    Co-Authors: Huang-yao Lin
    Abstract:

    A Flexure Plate Wave (FPW) resonator using piezoelectric thin film is proposed for liquid sensing. FPW device is suitable for liquid sensing because of less scattering of the energy from the acoustic wave to the loading liquid due to its low phase velocity. The COM theory is used to simulate the response of a two-port SAW resonator, which is extended to the design of the FPW resonator. The possible applications and the constraints for the proposed device are discussed from the theoretical expression. The comparison between the mass effect and the stiffness effect for the cases of droplet and fill loading show the application strategy in liquid sensing. The sol-gel derived Lead Zirconate Titanates (PZT) thin film is applied on the proposed device because of the cost advantage and the high electromechanical coupling effect over other thin piezoelectric thin films. The preliminary measurement results show that the resonant frequency and the relative liquid density have a good linear correlation, and demonstrate the feasibility of the proposed device

  • Liquid Density Sensing Using a FPW Resonator in PZT/SiNx Membrane
    2014
    Co-Authors: Huang-yao Lin
    Abstract:

    A Flexure Plate Wave (FPW) resonator using piezoelectric Lead Zirconate Titanates (PZT) films is proposed for liquid density sensing. FPW device is suitable for liquid sensing because of less scattering of the energy from the FPW to the loading liquid due to its low phase velocity. This study adopts Sol-Gel derived PZT thin films to fabricate the FPW resonator. The material system is Pt/Ti/PZT/LSMO/SiNx. The COM theory is used to simulate the response of a two-port SAW resonator, which is extended to the design of the FPW resonator. The preliminary measurement results show that the resonant frequency and the relative liquid density have a good linear correlation, and demonstrate the feasibility of the sensor application using the FPW resonator. The influence of the liquid viscosity to the frequency deviation is also investigated

  • LIQUID DENSITY SENSING USING RESONANT FLEXURAL PLATE WAVE DEVICE WITH SOL-GEL PZT THIN FILMS
    2008
    Co-Authors: Huang-yao Lin
    Abstract:

    This paper presents the design, fabrication and preliminary experimental results of a flexure plate wave (FPW) resonator using sol-gel derived Lead Zirconate Titanates (PZT) thin films. The resonator adopts a two-port structure with reflecting grates on the composite membrane of PZT and SiNx. The design of the reflecting grating is derived from a SAW resonator model using COM theory to produce a sharp resonant peak. The comparison between the mass and the viscosity effects from the theoretical expression illustrates the applications and the constraints of the proposed device in liquid sensing. Multiple coatings of sol-gel derived PZT films are adopted because of the cost advantage and the high electromechanical coupling effect over other piezoelectric films. The fabrication issues of the proposed material structure are addressed. Theoretical estimations of the mass and the viscosity effects are compared with the experimental results. The resonant frequency has a good linear correlation with the density of low viscosity liquids, which demonstrate the feasibility of the proposed device. 1

  • LIQUID DENSITY SENSING USING RESONANT FLEXURAL PLATE WAVE DEVICE WITH SOL-GEL PZT THIN FILMS
    2007
    Co-Authors: Huang-yao Lin
    Abstract:

    This paper presents the design, fabrication and preliminary experimental results of a flexure plate wave (FPW) resonator using sol-gel derived Lead Zirconate Titanates (PZT) thin films. The resonator adopts a two-port structure with reflecting grates on the composite membrane of PZT and SiNx. The design of the reflecting grate is derived from a SAW resonator model using COM theory to produce a sharp resonant peak. The comparison between the mass and the viscosity effects from the theoretical expression illustrates the applications and the constraints of the proposed device in liquid sensing. Multiple coatings of sol-gel derived PZT films are adopted because of the cost advantage and the high electromechanical coupling effect over other piezoelectric films. The fabrication issues of the proposed material structure are addressed. Theoretical estimations of the mass and the viscosity effects are compared with the experimental results. The resonant frequency has a good linear correlation with the density of low viscosity liquids, which demonstrate the feasibility of the proposed device.

Quan Hongying - One of the best experts on this subject based on the ideXlab platform.

  • Polyvinyl-butyral/Lead Zirconate Titanates composites with high dielectric constant and low dielectric loss
    Scripta Materialia, 2006
    Co-Authors: Lijie Dong, Chuanxi Xiong, Quan Hongying, Guanghui Zhao
    Abstract:

    A novel polymeric composite with high dielectric constant and low dielectric loss has been developed by mixing polyvinyl-butyral (PVB) with ferroelectric ceramic Lead Zirconate Titanates (PZT). The dependence of the dielectric constant on frequency and polymer volume fraction was investigated. The composite shows a high dielectric constant which gives better frequency stability, and lower dielectric loss. The highest dielectric constant of 155 and the lowest dielectric loss of 0.05 can be achieved at a PVB volume fraction of 0.15.