| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Mesoscale Phenomena in Functional Polycrystals and Their Nanostructures
|
| Presentation Title |
Aerosol Deposition and Characterization of Complex Oxide Systems |
| Author(s) |
Eric A. Patterson, Sara C. Mills, Heonjune Ryou, James Wollmershauser, Edward P. Gorzkowski |
| On-Site Speaker (Planned) |
Eric A. Patterson |
| Abstract Scope |
Aerosol deposition was used to produce thick-films with layer thicknesses between 10 to 50 microns. The bonding and densification of the film and film/substrate interface is facilitated by high pressure, impact and fracture of the particles, and some form of physical-chemical bonding. The films have microstructures characterized by XRD to have nano-grained crystallites and have been shown to have high residual stresses. This unique combination of crystallite size, stress and thick film results in unique properties compared to bulk ceramics of the same materials. Due to these high residual stresses, materials systems that exhibit either antiferroelectric properties in the bulk (such as NaNbO3) or stress-stabilized ferroelectric materials (such as HfO2), are natural alternatives to be studied via this technique. Deposition was performed onto metal substrates to facilitate the characterization of the electrical properties of the films; including permittivity as a function of temperature. |