1 / 12

Synthesis of Piezoelectric Lead Zirconate Titanate

Synthesis of Piezoelectric Lead Zirconate Titanate. Billy Woodford DREAM-REU Advisor: Dr. Wei-Heng Shih Mentor: Huidong Li. Outline. Background Intended Research Work To Date Future Work. Piezoelectricity.

morse
Download Presentation

Synthesis of Piezoelectric Lead Zirconate Titanate

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Synthesis of Piezoelectric Lead Zirconate Titanate Billy Woodford DREAM-REU Advisor: Dr. Wei-Heng Shih Mentor: Huidong Li

  2. Outline • Background • Intended Research • Work To Date • Future Work

  3. Piezoelectricity • “Piezoelectricity is the ability of certain crystals to generate a voltage in response to applied mechanical stress1” 1:http://en.wikipedia.org/wiki/Piezoelectric • Noncentrosymmetric structure makes this piezoelectric • d33 relates applied force to voltage along the parallel axis. http://www.physikinstrumente.de

  4. Background PZT is a ceramic which can exhibit piezoelectric properties • Conventional Synthesis Method: • Applications of piezoelectrics include: • High-voltage sources • Sensors • Actuators • Frequency Standards • Piezoelectric Motors PbO + xZrO2 + (1-x)TiO2 Pb(ZrxTi1-x)O3

  5. Intended Research • Examine existing synthesis procedures • Develop new method of synthesis to promote more intimate mixing • Compare PZT samples synthesized by each method • Use best-possible PZT to tape-cast free standing thick-films, then characterize

  6. Coating Method

  7. Improved Coating Method

  8. Properties of Interest • Density • Bulk, Apparent, Relative • Dielectric Properties • Dielectric Constant, Dielectric Loss • Piezoelectric Properties • d33 Constant

  9. Washed vs. Unwashed • Washing found to: • Decrease density; • Decrease dielectric constant; • Decrease d33 constant; • Promote Pyrrochlore phase impurity Top: Unwashed Samples Bottom: Washed Samples

  10. Density Comparison Theoretical Density of perovskite PZT is 7.9 g/cm3

  11. Future Work • Determine heat treatment for Method 3 procedure using Thermal Gravometric Analysis (TGA) • Compare properties across synthesis methods and sintering temperatures • Develop a procedure to tape-cast freestanding thick-film PZT

  12. Acknowledgements • Dr. Wei-Heng Shih • Huidong Li • DREAM-REU • Ceramics Processing and Sensor Group

More Related